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<div class=3DSection1>

<p class=3DMsoNormal>Homepage:<span style=3D'mso-spacerun:yes'>&nbsp; </spa=
n><span
style=3D'color:blue'><a href=3D"http://www.tutor-homework.com/">www.tutor-h=
omework.com</a></span><span
style=3D'mso-spacerun:yes'>&nbsp; </span>(for homework help &amp; tutoring =
or
find a tutor near you)</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'font-size:18.0pt'>Flowchart for stoichi=
ometry
conversions in chemistry:<o:p></o:p></span></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>This flowchart can be used by beginning chemistry stud=
ents
to help them get a feel for how to do conversions in stoichiometry&#8230;<s=
pan
style=3D'mso-spacerun:yes'>&nbsp; </span>Wait a minute!<span
style=3D'mso-spacerun:yes'>&nbsp; </span>What the heck is
&#8220;stoichiometry&#8221; anyway and who the heck invented such an awful
word?<span style=3D'mso-spacerun:yes'>&nbsp; </span>According to
&#8220;Wikipedia&#8221;, it&#8217;s the calculation of quantitative
(measurable) relationships of the reactants and products in chemical
reactions.<span style=3D'mso-spacerun:yes'>&nbsp; </span>For example, if I =
start
with 10 gallons of gasoline, how many liters of oxygen gas would be require=
d to
burn the 10 gallons of gasoline?<span style=3D'mso-spacerun:yes'>&nbsp; </s=
pan>Or
maybe a question such as if I have 10 grams of sugar and 10 grams of sulfur=
ic
acid, which one will be used up first (be the &#8220;limiting
reactant&#8221;).<span style=3D'mso-spacerun:yes'>&nbsp; </span>To answer s=
uch
questions we will always need the balanced chemical reaction that refers to=
 the
specific situation, so you will need to know what all of the reactants and
products are.<span style=3D'mso-spacerun:yes'>&nbsp; </span>Anyway, I don&#=
8217;t
know who came up with the word, but that&#8217;s what it means.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>To start lets just look at the flow chart for converti=
ng
different quantities.<span style=3D'mso-spacerun:yes'>&nbsp; </span>I know =
this
looks daunting, but we&#8217;ll run through a few examples that should help=
 to
clarify things.<span style=3D'mso-spacerun:yes'>&nbsp; </span></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>Examples are referenced on the flow chart with circled
numbers.<span style=3D'mso-spacerun:yes'>&nbsp; </span>Examples are shown d=
own
below the flowchart.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>The measurable quantities, are shown in black, the
&#8220;conversion factors&#8221; are shown in red.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span>Volume
of a</p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span>solution
of &#8220;A&#8221;</p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span>(mL,
L, etc.)</p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;</span><!--[if gte vml 1]><v:shapetype id=
=3D"_x0000_t75"
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5l@4@11@9@11@9@5xe"
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 <v:stroke joinstyle=3D"miter"/>
 <v:formulas>
  <v:f eqn=3D"if lineDrawn pixelLineWidth 0"/>
  <v:f eqn=3D"sum @0 1 0"/>
  <v:f eqn=3D"sum 0 0 @1"/>
  <v:f eqn=3D"prod @2 1 2"/>
  <v:f eqn=3D"prod @3 21600 pixelWidth"/>
  <v:f eqn=3D"prod @3 21600 pixelHeight"/>
  <v:f eqn=3D"sum @0 0 1"/>
  <v:f eqn=3D"prod @6 1 2"/>
  <v:f eqn=3D"prod @7 21600 pixelWidth"/>
  <v:f eqn=3D"sum @8 21600 0"/>
  <v:f eqn=3D"prod @7 21600 pixelHeight"/>
  <v:f eqn=3D"sum @10 21600 0"/>
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</v:shapetype><v:shape id=3D"_x0000_i1025" type=3D"#_x0000_t75" style=3D'wi=
dth:12pt;
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</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image002.jpg" v:sh=
apes=3D"_x0000_i1025"><![endif]><span
style=3D'mso-spacerun:yes'>&nbsp; </span><span style=3D'font-family:Symbol;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Ro=
man";
mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style=3D'mso-char=
-type:
symbol;mso-symbol-font-family:Symbol'>&Yacute;</span></span><span
style=3D'mso-spacerun:yes'>&nbsp; </span><span style=3D'color:red'>Molarity=
<o:p></o:p></span></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&szlig;</span>=
</span><span
style=3D'mso-spacerun:yes'>&nbsp; </span><span style=3D'color:red'>(mol/L =
=3D M)</span></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><!--[if gte vml 1]><v:shape
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</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image004.jpg" v:sh=
apes=3D"_x0000_i1026"><![endif]><span
style=3D'mso-spacerun:yes'>&nbsp;</span><span style=3D'color:red'>Density<s=
pan
style=3D'mso-tab-count:4'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><=
!--[if gte vml 1]><v:shape
 id=3D"_x0000_i1027" type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e005.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image006.jpg" v:sh=
apes=3D"_x0000_i1027"><![endif]>
<span style=3D'color:red'>Formula Wt.<span style=3D'mso-tab-count:3'>&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><!--[i=
f gte vml 1]><v:shape
 id=3D"_x0000_i1028" type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e007.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image008.jpg" v:sh=
apes=3D"_x0000_i1028"><![endif]>
<span style=3D'color:red'>Avogadro&#8217;s #<span style=3D'mso-tab-count:2'=
>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></s=
pan><!--[if gte vml 1]><v:shape
 id=3D"_x0000_i1029" type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
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e009.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image010.jpg" v:sh=
apes=3D"_x0000_i1029"><![endif]>
<span style=3D'color:red'>Chemical<o:p></o:p></span></p>

<p class=3DMsoNormal><span style=3D'color:red'><span style=3D'mso-tab-count=
:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(g/=
mL)<span
style=3D'mso-tab-count:5'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; </span>(g/mol)<span
style=3D'mso-tab-count:5'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; </span>(6.022x10<sup>23</sup>)<span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp; </span><span style=3D'mso-tab-=
count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>f=
ormula<o:p></o:p></span></p>

<p class=3DMsoNormal>Volume of pure<span style=3D'mso-tab-count:2'>&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sp=
an
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&reg;</span></=
span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>Mass
of pure<span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&reg;</span></=
span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>Moles
of <span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&reg;</span></=
span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>Molecules<span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&reg;</span></=
span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>Atoms
of<span style=3D'mso-spacerun:yes'>&nbsp; </span>&#8220;X&#8221;</p>

<p class=3DMsoNormal>substance &#8220;A&#8221;<span style=3D'mso-tab-count:=
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&not;</span></=
span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>substance
&#8220;A&#8221;<span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&not;</span></=
span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>substance
&#8220;A&#8221;<span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&not;</span></=
span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>of<span
style=3D'mso-spacerun:yes'>&nbsp; </span>&#8220;A&#8221;<span style=3D'mso-=
tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&not;</span></=
span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>in
sample of </p>

<p class=3DMsoNormal>(mL, L, etc.)<span style=3D'mso-tab-count:2'>&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span><span style=3D'mso-tab-count=
:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(g,
kg, etc.)<span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style=3D'mso-tab=
-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(mol)<span
style=3D'mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style=3D'mso-tab=
-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=3D'ms=
o-tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>&#8220;compound
A&#8221;</p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><b style=3D'mso-=
bidi-font-weight:
normal'><span style=3D'font-family:Symbol;mso-ascii-font-family:"Times New =
Roman";
mso-hansi-font-family:"Times New Roman";color:red;mso-char-type:symbol;
mso-symbol-font-family:Symbol'><span style=3D'mso-char-type:symbol;mso-symb=
ol-font-family:
Symbol'>&Yacute;</span></span></b></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'>XXXXXXXXXXXXX=
XXXXXXXXXXXXXXXXXXXXXXXXXXXXX</b><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><b style=3D'mso-=
bidi-font-weight:
normal'><span style=3D'font-family:Symbol;mso-ascii-font-family:"Times New =
Roman";
mso-hansi-font-family:"Times New Roman";color:red;mso-char-type:symbol;
mso-symbol-font-family:Symbol'><span style=3D'mso-char-type:symbol;mso-symb=
ol-font-family:
Symbol'>&Yacute;</span></span><span style=3D'color:red'><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span></span></b><!--[if gte vml 1=
]><v:shape
 id=3D"_x0000_i1030" type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e011.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image012.jpg" v:sh=
apes=3D"_x0000_i1030"><![endif]><b
style=3D'mso-bidi-font-weight:normal'><span style=3D'color:red'>*Stoichiome=
tric<span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span></span>XXXXXXXXXXXXXXX=
XXXXXXXXXXXXXXX<span
style=3D'color:red'><o:p></o:p></span></b></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><b style=3D'mso-=
bidi-font-weight:
normal'><span style=3D'font-family:Symbol;mso-ascii-font-family:"Times New =
Roman";
mso-hansi-font-family:"Times New Roman";color:red;mso-char-type:symbol;
mso-symbol-font-family:Symbol'><span style=3D'mso-char-type:symbol;mso-symb=
ol-font-family:
Symbol'>&szlig;</span></span><span style=3D'color:red'><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>coefficients*<o:p></o:p></sp=
an></b></p>

<p class=3DMsoNormal><span style=3D'color:red'><span style=3D'mso-tab-count=
:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></s=
pan><!--[if gte vml 1]><v:shape
 id=3D"_x0000_i1031" type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e003.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image004.jpg" v:sh=
apes=3D"_x0000_i1031"><![endif]><span
style=3D'mso-spacerun:yes'>&nbsp;</span><span style=3D'color:red'>Density<s=
pan
style=3D'mso-tab-count:4'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><=
!--[if gte vml 1]><v:shape
 id=3D"_x0000_i1032" type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e005.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image006.jpg" v:sh=
apes=3D"_x0000_i1032"><![endif]>
<span style=3D'color:red'>Formula Wt.<span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span><b
style=3D'mso-bidi-font-weight:normal'><span style=3D'font-family:Symbol;mso=
-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:red;mso-cha=
r-type:
symbol;mso-symbol-font-family:Symbol'><span style=3D'mso-char-type:symbol;
mso-symbol-font-family:Symbol'>&szlig;</span></span></b><span style=3D'colo=
r:
red'><span style=3D'mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><!--[if gte=
 vml 1]><v:shape
 id=3D"_x0000_i1033" type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e007.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image008.jpg" v:sh=
apes=3D"_x0000_i1033"><![endif]>
<span style=3D'color:red'>Avogadro&#8217;s #<span style=3D'mso-tab-count:2'=
>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></s=
pan><!--[if gte vml 1]><v:shape
 id=3D"_x0000_i1034" type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e009.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image010.jpg" v:sh=
apes=3D"_x0000_i1034"><![endif]>
<span style=3D'color:red'>Chemical<o:p></o:p></span></p>

<p class=3DMsoNormal><span style=3D'color:red'><span style=3D'mso-tab-count=
:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(g/=
mL)<span
style=3D'mso-tab-count:5'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; </span>(g/mol)<span
style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span><b
style=3D'mso-bidi-font-weight:normal'><span style=3D'font-family:Symbol;mso=
-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:red;mso-cha=
r-type:
symbol;mso-symbol-font-family:Symbol'><span style=3D'mso-char-type:symbol;
mso-symbol-font-family:Symbol'>&szlig;</span></span></b><span style=3D'colo=
r:
red'><span style=3D'mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(6.022x10<sup>23</=
sup>)<span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp; </span><span style=3D'mso-tab-=
count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>f=
ormula<o:p></o:p></span></p>

<p class=3DMsoNormal>Volume of pure<span style=3D'mso-tab-count:2'>&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sp=
an
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&reg;</span></=
span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>Mass
of pure<span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&reg;</span></=
span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>Moles
of <span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&reg;</span></=
span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>Molecules<span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&reg;</span></=
span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>Atoms
of<span style=3D'mso-spacerun:yes'>&nbsp; </span>&#8220;Y&#8221;</p>

<p class=3DMsoNormal>substance &#8220;B&#8221;<span style=3D'mso-tab-count:=
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&not;</span></=
span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>substance
&#8220;B&#8221;<span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&not;</span></=
span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>substance
&#8220;B&#8221;<span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&not;</span></=
span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>of<span
style=3D'mso-spacerun:yes'>&nbsp; </span>&#8220;B&#8221;<span style=3D'mso-=
tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&not;</span></=
span><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;<span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&frac34;</span=
></span></span><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span>in
sample of </p>

<p class=3DMsoNormal>(mL, L, etc.)<span style=3D'mso-tab-count:4'>&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; </span>(g,
kg, etc.)<span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span><span style=3D'mso-tab-count=
:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(mol)<span
style=3D'mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span><span style=3D'mso-tab-count=
:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;</span><span style=3D'mso-tab-=
count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>&#8220;compound
B&#8221;</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span><!--[if gte vml 1]><v:shape =
id=3D"_x0000_i1035"
 type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e001.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image002.jpg" v:sh=
apes=3D"_x0000_i1035"><![endif]><span
style=3D'mso-spacerun:yes'>&nbsp;</span><span style=3D'font-family:Symbol;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Ro=
man";
mso-char-type:symbol;mso-symbol-font-family:Symbol'><span style=3D'mso-char=
-type:
symbol;mso-symbol-font-family:Symbol'>&Yacute;</span></span><span
style=3D'mso-spacerun:yes'>&nbsp; </span><span style=3D'color:red'>Molarity=
<o:p></o:p></span></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </spa=
n><span
style=3D'font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman";mso-char-type:symbol;mso-symbol-font-family:Symbol'><span
style=3D'mso-char-type:symbol;mso-symbol-font-family:Symbol'>&szlig;</span>=
</span><span
style=3D'mso-spacerun:yes'>&nbsp; </span><span style=3D'color:red'>(mol/L =
=3D M)<o:p></o:p></span></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><b
style=3D'mso-bidi-font-weight:normal'>The &#8220;XXXXX&#8221; boundary cann=
ot be
crossed</b><span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Volume
of a</p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><b
style=3D'mso-bidi-font-weight:normal'>without going through <!--[if gte vml=
 1]><v:shape
 id=3D"_x0000_i1036" type=3D"#_x0000_t75" style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e011.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image012.jpg" v:sh=
apes=3D"_x0000_i1036"><![endif]><span
style=3D'mso-spacerun:yes'>&nbsp;</span>!!!!</b><span style=3D'mso-tab-coun=
t:5'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span=
>solution
of &#8220;B&#8221;<b style=3D'mso-bidi-font-weight:normal'><span
style=3D'color:red'> <span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>*
The key to converting from a quantitiy of one chemical</span></b></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:10'>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span>(mL,
L, etc.)<span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><b
style=3D'mso-bidi-font-weight:normal'><span style=3D'color:red'>to a quanti=
ty of
another.<span style=3D'mso-spacerun:yes'>&nbsp; </span>(i.e., grams A to gr=
ams B)<o:p></o:p></span></b></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'><span
style=3D'color:red'><o:p>&nbsp;</o:p></span></b></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'>Download the =
flowchart
as a graphic: <a
href=3D"http://www.tutor-homework.com/Chemistry_Help/stoichiometry_flowchar=
t.JPG">Stoichiometry_Flowchart.jpg</a><o:p></o:p></b></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><!--[if gte vml 1]><v:shape id=3D"_x0000_i1037" type=
=3D"#_x0000_t75"
 style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e003.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image004.jpg" v:sh=
apes=3D"_x0000_i1037"><![endif]><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span=
><b
style=3D'mso-bidi-font-weight:normal'>Converting from mass to volume and vo=
lume
to mass:<span style=3D'mso-spacerun:yes'>&nbsp; </span>Density is our conve=
rsion
factor.<o:p></o:p></b></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>This
one you&#8217;ve probably done before, let&#8217;s convert, say 45.9 mL of
liquid mercury (Hg) to grams of mercury.<span style=3D'mso-spacerun:yes'>&n=
bsp;
</span>We need to look up the density of mercury, 13.5 g/mL.</p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
><v:shape
 id=3D"_x0000_i1038" type=3D"#_x0000_t75" style=3D'width:159.75pt;height:33=
.75pt'
 o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e013.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D213 height=3D45
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image014.gif" v:sh=
apes=3D"_x0000_i1038"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1038"
  DrawAspect=3D"Content" ObjectID=3D"_1281117112">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Note:
make sure that you have the right units where they belong.<span
style=3D'mso-spacerun:yes'>&nbsp; </span>You want mL to &#8220;cancel out&#=
8221;.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Let&#8217;s
try that going the other way, we&#8217;ll convert 1.50 kg of gasoline into =
kg
of gasoline.<span style=3D'mso-spacerun:yes'>&nbsp; </span>Well, we need to=
 know
that 1.50 kg =3D 1500 g, but that&#8217;s easy enough.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
><v:shape
 id=3D"_x0000_i1039" type=3D"#_x0000_t75" style=3D'width:137.25pt;height:36=
pt' o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e015.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D183 height=3D48
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image016.gif" v:sh=
apes=3D"_x0000_i1039"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1039"
  DrawAspect=3D"Content" ObjectID=3D"_1281117113">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>And
of course, 2030 mL =3D 2.03 L</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Now
then, what I recommend is setting up your conversions in all one step, more
like this&#8230;</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
><v:shape
 id=3D"_x0000_i1040" type=3D"#_x0000_t75" style=3D'width:216.75pt;height:36=
pt' o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e017.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D289 height=3D48
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image018.gif" v:sh=
apes=3D"_x0000_i1040"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1040"
  DrawAspect=3D"Content" ObjectID=3D"_1281117114">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><!--[if gte vml 1]><v:shape id=3D"_x0000_i1041" type=
=3D"#_x0000_t75"
 style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e005.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image019.jpg" v:sh=
apes=3D"_x0000_i1041"><![endif]><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span=
><b
style=3D'mso-bidi-font-weight:normal'>Converting from mass to moles and from
moles to mass:<span style=3D'mso-spacerun:yes'>&nbsp; </span>Molar mass is =
our
conversion factor.</b></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Molar
mass is often called molecular weight or formula weight, depending on the t=
ype
of compound (molecular or ionic).</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Lets
just convert 100 g of water to moles of water.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
><v:shape
 id=3D"_x0000_i1042" type=3D"#_x0000_t75" style=3D'width:204.75pt;height:38=
.25pt'
 o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e020.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D273 height=3D51
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image021.gif" v:sh=
apes=3D"_x0000_i1042"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1042"
  DrawAspect=3D"Content" ObjectID=3D"_1281117115">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>This
is a simple enough calculation and I could have left out &#8220;H<sub>2</su=
b>O&#8221;,
but I find it helpful when you&#8217;re converting from the mass of one
compound to the mass of another, so I often include the chemical formula.</=
p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Likewise
you can convert, say 10.5 mole of methane, CH<sub>4</sub>, to grams of meth=
ane
(Try this yourself).<span style=3D'mso-spacerun:yes'>&nbsp; </span>The answ=
er is
168 g CH<sub>4</sub>.</p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>A
good tool to calculate molar masses is: <span style=3D'color:blue'><a
href=3D"http://www.tutor-homework.com/Chemistry_Help/molar_mass_calculator.=
html">http://www.tutor-homework.com/Chemistry_Help/molar_mass_calculator.ht=
ml</a></span></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><!--[if gte vml 1]><v:shape id=3D"_x0000_i1043" type=
=3D"#_x0000_t75"
 style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e011.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image022.jpg" v:sh=
apes=3D"_x0000_i1043"><![endif]><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span=
><b
style=3D'mso-bidi-font-weight:normal'>Converting from moles of one compound=
 to
moles of another:<span style=3D'mso-spacerun:yes'>&nbsp; </span>We use the =
stoichiometric
coefficients.<o:p></o:p></b></p>

<p class=3DMsoNormal><span style=3D'color:purple'><span style=3D'mso-tab-co=
unt:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <=
/span><b
style=3D'mso-bidi-font-weight:normal'><u>It should be noted that this is pr=
obably
the most important step in stoichiometric calculations, but one that studen=
ts
often forget or miscalculate.<o:p></o:p></u></b></span></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>First,
we need a balanced reaction.<span style=3D'mso-spacerun:yes'>&nbsp;
</span>Let&#8217;s keep it simple&#8230;</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>4
Al(s) + 3 O<sub>2</sub>(g) <span style=3D'font-family:Wingdings;mso-ascii-f=
ont-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-char-type:sym=
bol;
mso-symbol-font-family:Wingdings'><span style=3D'mso-char-type:symbol;mso-s=
ymbol-font-family:
Wingdings'>&agrave;</span></span> 2 Al<sub>2</sub>O<sub>3</sub>(s)</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>How
many moles of aluminum oxide can be made from 18.7 moles of Aluminum metal,
assuming we have more than enough oxygen gas to react?</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
><v:shape
 id=3D"_x0000_i1044" type=3D"#_x0000_t75" style=3D'width:218.25pt;height:36=
pt' o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e023.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D291 height=3D48
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image024.gif" v:sh=
apes=3D"_x0000_i1044"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1044"
  DrawAspect=3D"Content" ObjectID=3D"_1281117116">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>And
how many moles of oxygen gas are needed (&#8220;consumed&#8221;)?</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
><v:shape
 id=3D"_x0000_i1045" type=3D"#_x0000_t75" style=3D'width:183.75pt;height:36=
pt' o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e025.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D245 height=3D48
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image026.gif" v:sh=
apes=3D"_x0000_i1045"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1045"
  DrawAspect=3D"Content" ObjectID=3D"_1281117117">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><!--[if gte vml 1]><v:shape id=3D"_x0000_i1046" type=
=3D"#_x0000_t75"
 style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e007.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image027.jpg" v:sh=
apes=3D"_x0000_i1046"><![endif]><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span=
><b
style=3D'mso-bidi-font-weight:normal'>Converting between moles and number of
molecules: Use Avogadro&#8217;s number, 6.022x10<sup>23</sup>.</b></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>This
is very much like converting between &#8220;dozen eggs&#8221; and just
eggs.<span style=3D'mso-spacerun:yes'>&nbsp; </span>If you have 10 doz. egg=
s, then
you have 120 eggs, if you have 3.5 doz. eggs, you have 42 eggs.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>If
you have 10.3 moles of hydrogen gas&#8230;<span style=3D'mso-spacerun:yes'>=
&nbsp;
</span>Let&#8217;s convert it to moles&#8230;</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
><v:shape
 id=3D"_x0000_i1047" type=3D"#_x0000_t75" style=3D'width:324pt;height:38.25=
pt' o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e028.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D432 height=3D51
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image029.gif" v:sh=
apes=3D"_x0000_i1047"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1047"
  DrawAspect=3D"Content" ObjectID=3D"_1281117118">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><!--[if gte vml 1]><v:shape id=3D"_x0000_i1048" type=
=3D"#_x0000_t75"
 style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e009.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image030.jpg" v:sh=
apes=3D"_x0000_i1048"><![endif]><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span=
><b
style=3D'mso-bidi-font-weight:normal'>Converting between molecules and
atoms.<span style=3D'mso-spacerun:yes'>&nbsp; </span>Use the molecular form=
ula<o:p></o:p></b></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; </span></b>We&#8217;ll
pick up from where we left off above&#8230;<span
style=3D'mso-spacerun:yes'>&nbsp; </span>How many atoms of hydrogen are the=
re
from the step above?</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
><v:shape
 id=3D"_x0000_i1049" type=3D"#_x0000_t75" style=3D'width:303pt;height:38.25=
pt' o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e031.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D404 height=3D51
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image032.gif" v:sh=
apes=3D"_x0000_i1049"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1049"
  DrawAspect=3D"Content" ObjectID=3D"_1281117119">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><!--[if gte vml 1]><v:shape id=3D"_x0000_i1050" type=
=3D"#_x0000_t75"
 style=3D'width:12pt;height:12pt'>
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e001.png"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D16 height=3D16
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image033.jpg" v:sh=
apes=3D"_x0000_i1050"><![endif]><span
style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span=
><b
style=3D'mso-bidi-font-weight:normal'>Converting between a volume of a solu=
tion
and the moles present: We use molarity (the moles/L) as the conversion fact=
or.<o:p></o:p></b></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>If
you have 50.3 mL of 0.206 M solution of sodium chloride, how many moles of
sodium chloride are there?</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
><v:shape
 id=3D"_x0000_i1051" type=3D"#_x0000_t75" style=3D'width:279pt;height:33.75=
pt' o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e034.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D372 height=3D45
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image035.gif" v:sh=
apes=3D"_x0000_i1051"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1051"
  DrawAspect=3D"Content" ObjectID=3D"_1281117120">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'><o:p>&nbsp;</=
o:p></b></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'><span
style=3D'font-size:18.0pt'>Combining it all&#8230;<o:p></o:p></span></b></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'><o:p>&nbsp;</=
o:p></b></p>

<p class=3DMsoNormal>Suppose we have 103.2 lbs of a compound&#8230; say <sp=
an
lang=3DEN style=3D'mso-ansi-language:EN'>[Au(CH<sub>2</sub>)<sub>2</sub>P(C=
<sub>6</sub>H<sub>5</sub>)<sub>2</sub>]<sub>2</sub>Cl<sub>2</sub><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>How many atoms of gold are i=
n that
compound?<o:p></o:p></span></p>

<p class=3DMsoNormal><span lang=3DEN style=3D'mso-ansi-language:EN'><o:p>&n=
bsp;</o:p></span></p>

<p class=3DMsoNormal><span lang=3DEN style=3D'mso-ansi-language:EN'>To simp=
lify
things, the condensed formula is Au<sub>2</sub>C<sub>28</sub>H<sub>28</sub>=
P<sub>2</sub>Cl<sub>2</sub>
and its molar mass is 891.33 g/mol.<o:p></o:p></span></p>

<p class=3DMsoNormal><span lang=3DEN style=3D'mso-ansi-language:EN'><o:p>&n=
bsp;</o:p></span></p>

<p class=3DMsoNormal><sub><!--[if gte vml 1]><v:shape id=3D"_x0000_i1052" t=
ype=3D"#_x0000_t75"
 style=3D'width:453.75pt;height:38.25pt' o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e036.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D605 height=3D51
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image037.gif" v:sh=
apes=3D"_x0000_i1052"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1052"
  DrawAspect=3D"Content" ObjectID=3D"_1281117121">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>Notice that we first converted pounds to grams, then g=
rams
to moles, moles to molecules, and finally molecules to atoms.<span
style=3D'mso-spacerun:yes'>&nbsp; </span>There are no shortcuts to go from =
the
first step to the last, that&#8217;s why I made that flowchart above to show
how to go from one quantity to another.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'>Grams of comp=
ound
&#8220;A&#8221; to grams of compound &#8220;B&#8221;.<span
style=3D'mso-spacerun:yes'>&nbsp; </span>This is one of the most common typ=
es of
problems!<o:p></o:p></b></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>If we have 31.8 grams of hydrogen gas, and more than e=
nough
oxygen gas, how many grams of water can be made?</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>The balanced reaction:<span style=3D'mso-spacerun:yes'=
>&nbsp;
</span>2 H<sub>2</sub> + O<sub>2</sub> <span style=3D'font-family:Wingdings;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Ro=
man";
mso-char-type:symbol;mso-symbol-font-family:Wingdings'><span style=3D'mso-c=
har-type:
symbol;mso-symbol-font-family:Wingdings'>&agrave;</span></span> 2 H<sub>2</=
sub>O</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><sub><!--[if gte vml 1]><v:shape id=3D"_x0000_i1053" t=
ype=3D"#_x0000_t75"
 style=3D'width:315pt;height:38.25pt' o:ole=3D"">
 <v:imagedata src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\imag=
e038.wmz"
  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D420 height=3D51
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image039.gif" v:sh=
apes=3D"_x0000_i1053"><![endif]></sub><!--[if gte mso 9]><xml>
 <o:OLEObject Type=3D"Embed" ProgID=3D"Equation.3" ShapeID=3D"_x0000_i1053"
  DrawAspect=3D"Content" ObjectID=3D"_1281117122">
 </o:OLEObject>
</xml><![endif]--></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'>Limiting reac=
tants
a.k.a. limiting reagents (pronounced &#8220;re-agents&#8221;).<o:p></o:p></=
b></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'><o:p>&nbsp;</=
o:p></b></p>

<p class=3DMsoNormal>If you have 100.0 g of Al and 100.0 g of O<sub>2</sub>=
, how
much Al<sub>2</sub>O<sub>3</sub> can be made.</p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'><o:p>&nbsp;</=
o:p></b></p>

<p class=3DMsoNormal>4 Al(s) + 3 O<sub>2</sub>(g) <span style=3D'font-famil=
y:Wingdings;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Ro=
man";
mso-char-type:symbol;mso-symbol-font-family:Wingdings'><span style=3D'mso-c=
har-type:
symbol;mso-symbol-font-family:Wingdings'>&agrave;</span></span> 2 Al<sub>2<=
/sub>O<sub>3</sub>(s)</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>These are the steps to follow:</p>

<p class=3DMsoNormal>(a)<span style=3D'mso-spacerun:yes'>&nbsp; </span>Conv=
ert to
moles&#8230;</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>100.0
g Al (1 mol / 26.98 g) =3D 3.706 mol Al</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>100.0
g O<sub>2</sub> (1 mol / 32.00 g) =3D 3.125 mol O<sub>2</sub></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>(b)<span style=3D'mso-spacerun:yes'>&nbsp; </span>Divi=
de the
moles by their stoichiometric coefficients in the balanced reaction.<span
style=3D'mso-spacerun:yes'>&nbsp; </span>(Test for the limiting reactant).<=
/p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>Al:<span
style=3D'mso-spacerun:yes'>&nbsp; </span>3.706 / 4 =3D 0.9265</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>O<sub>2</sub>:<span
style=3D'mso-spacerun:yes'>&nbsp; </span>3.125 / 3 =3D 1.042</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>You
can see that the aluminum has the smallest mole/stoichiometric coefficient
ratio; aluminum is the limiting reactant.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>(c) <span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; </span>The
amount of products made and reactants remaining all depends on the limiting
reactant.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

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p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
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</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D477 height=3D51
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image041.gif" v:sh=
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<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'>Solution
Stoichiometry (Titrations)</b></p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>Titrations are fairly straightforward when the reactan=
ts are
in a one-to-one mole ratio in the balanced chemical reaction, but sometimes
they are not.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>Let&#8217;s take a look at this&#8230;<span
style=3D'mso-spacerun:yes'>&nbsp; </span>H<sub>2</sub>SO<sub>4</sub>(aq) + 2
NaOH(aq) <span style=3D'font-family:Wingdings;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman";mso-char-type:symbol;mso-symbol-fon=
t-family:
Wingdings'><span style=3D'mso-char-type:symbol;mso-symbol-font-family:Wingd=
ings'>&agrave;</span></span>
2 H<sub>2</sub>O(l) + Na<sub>2</sub>SO<sub>4</sub>(aq)</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>If it takes 38.56 mL of 0.05004 M NaOH to titrate 50.0=
0 mL
of H<sub>2</sub>SO<sub>4</sub>, what is the concentration of the acid?</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>Titration is just another way to say
&#8220;neutralization&#8221;, but done in such a way that we can analyze the
concentration of a solution, sulfuric acid in this case.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>The easiest way to answer this is with a formula, the =
&#8220;titration
formula&#8221;:</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]=
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25pt'
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  o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img border=3D0 width=3D99 height=3D43
src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image043.gif" v:sh=
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<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>C: concentration (molarity)<span style=3D'mso-tab-coun=
t:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>V:
volume (mL, L)<span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; </span>subscript
a: acid<span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>subscript
b: base<span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; </span>a:
the acid stoichiometric coefficient<span style=3D'mso-tab-count:1'>&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>b:
the base stoichiometric coefficient.</p>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<p class=3DMsoNormal>Solve for C<sub>a</sub>&#8230;</p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></p>

<p class=3DMsoNormal><span style=3D'mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><sub><!--[if gte vml 1]><v=
:shape
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src=3D"file:///C:\B46592B4\Stoichiometry_Flowchart_files\image045.gif" v:sh=
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</div>

</body>

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