Chemistry Tutor

Tutoring & Homework Help Math, Chemistry, Physics, Etc.

Math Tutor
David Roth; Owner & Tutor
Math, Chemistry, & Physics

About me; Testimonials

MS Degree in Chemistry.
15+ yrs. teaching & tutoring.
Tutoring in Tulsa, OK: $20-$25/hr
Homework Help by Email: $20/hr
Online Tutoring (by chat): $20/hr
Help with Online Classes: $20/hr
ACT, SAT, GRE, MCAT
        Test Prep: $25/hr

Contact:
For Tutoring Appointments or
Homework Help By Email

admin@tutor-homework.com
€ Phone: 918-850-5925.



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Free Math Tools:
• Online Equation Grapher
• Quadratic Equation Solver
• Statistics Table Calculator
• Simplex Tableau Tool
• Excel Function Grapher
• Excel 3D Grapher
• Excel Derivate Grapher
• Excel Riemann Sum Tool
• Excel Matrix Pivot Tool
Online Books:
(with video lectures)
• Online Calculus Book
• Online Algebra Book

Java Applets:
(by Walter Fendt)
• Physics Applets
• Math Applets
• Astronomy Applets
Educational Tools:
• Cheat Sheets, Exams & Quizzes
• Chemistry Homework Help Tools
• Math Homework Help Tools
• Physics Homework Help Tools

Find tutors in your city: Find a Tutor (Free!)   Or be on the list: Be a Tutor. (Also FREE!)

Math Homework Practice Problems
Chemistry Homework Practice Problems
Physics Homework Practice Problems

Funny pics relating to education: School Humor

In-Person Tutoring in Tulsa, Oklahoma

Here you can read about my tutoring methods / philosophy: Chemistry Tutor, Math Tutor, Physics Tutor.

School Subjects Offered:
MATHEMATICS:
Basic Math • Algebra • Geometry • Trigonometry • Calculus & Analytic Geometry
Business Calculus • Statistics • Finite Math • Differential Equations
SCIENCE:
High School Chemistry • AP Chemistry • Chemistry I (college) • Chemistry II (college) • Organic Chemistry (college)
High school physics • AP Physics • Physics I (college) • Physics II (college)
TEST PREP: ACT Test Prep • SAT Test Prep • SAT II Test Prep • GRE Test Prep • MCAT Test Prep • ASVAB Test Prep
If your school subject is not listed here, I can help you find a tutor who can meet your needs.

  • Contact me (David Roth) to schedule a time for tutoring in Tulsa, OK.
  • Phone: 918-850-5925 (I prefer you call me!)
  • Email: admin@tutor-pages.com
  • No contract is required.
  • Meeting Locations:
       I usually meet students at a coffee shop or library in the Tulsa Midtown/Brookside area (36th & Peoria).
       I can come to your house as long as a parent or responsible adult will be home. Travel fees may apply.
  • Hours:
       7 days a week, 9:00 a.m. to 11:30 p.m.
  • Fees:
       $25/hour
  • Cash is preferred, but I also accept check, credit card, and PayPal.
  • Make PayPal and/or credit card payments by clicking the PayPal button at the top of this page.

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    How to Purchase Email Homework Help:

    School Subjects Offered:
    MATHEMATICS:
    Basic Math • Algebra • Geometry • Trigonometry • Calculus & Analytic Geometry
    Business Calculus • Statistics • Finite Math • Differential Equations
    SCIENCE:
    High School Chemistry • AP Chemistry • Chemistry I (college) • Chemistry II (college) • Organic Chemistry (college)
    High school physics • AP Physics • Physics I (college) • Physics II (college)
    If your school subject is not listed here, I can help you find a tutor who can meet your needs.

    (Step 1) Email homework problems to me, David Roth: admin@tutor-homework.com


    FYI, you cannot use "cut and paste" for most online problems with symbols and graphics, so READ THIS:
    How to scan, screen capture online work, or type math symbols.
    PLEASE INCLUDE:
    • My deadline (central standard time). • Any special instructions (file format for solutions, handwritten or typed solutions, etc.)

    (Step 2) I will send you a price.
    (Step 3) Send the money by credit card or paypal:
    (Step 4) I will email the homework solutions to you as an attached file.

    Disclaimer: THIS IS INTENDED AS A STUDY GUIDE AND A WAY FOR YOU TO CHECK YOUR ANSWERS. SIMPLY TURNING IN THESE PROBLEMS FOR A GRADE WILL NOT HELP YOU TO STUDY, AND AS A RESULT, YOUR EXAM SCORES WILL SUFFER AND YOUR GRADE WILL SUFFER.
    If you use this homework help service as a homework cheating service, it will NOT help you in the long run because you need to pass your exams.

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    Online Tutoring:   This is real-time tutoring through chat programs.

    Here you can read about my tutoring methods / philosophy: Chemistry Tutor, Math Tutor, Physics Tutor.

    School Subjects Offered:
    MATHEMATICS:
    Basic Math • Algebra • Geometry • Trigonometry • Calculus & Analytic Geometry
    Business Calculus • Statistics • Finite Math • Differential Equations
    SCIENCE:
    High School Chemistry • AP Chemistry • Chemistry I (college) • Chemistry II (college) • Organic Chemistry (college)
    High school physics • AP Physics • Physics I (college) • Physics II (college)
    TEST PREP: ACT Test Prep • SAT Test Prep • SAT II Test Prep • GRE Test Prep • MCAT Test Prep • ASVAB Test Prep
    If your school subject is not listed here, I can help you find a tutor who can meet your needs.

  • Contact me (David Roth) to schedule a time for online tutoring.
  • Phone: 918-850-5925 (I prefer you call me!)
  • Email: admin@tutor-homework.com
  • No contract is required, but payment is due before online tutoring can begin.
  • Money remaining can be used for later tutoring or homework help or it can be refunded to you at your request.
  • 7 days a week, 9:00 a.m. to 11:30 p.m.
  • $25/hour Monday through Thursday 3:00 p.m. to 11:30 p.m.
  • $20/hour all other times.
  • Make PayPal and/or credit card payments by clicking the PayPal button at the top of this page.
  • Yahoo Messenger (with doodle/drawing "IMvironment" and voice) (preferred)
    ---Must have a Yahoo! account (it's free!) and installed Yahoo! Messenger (also free!) on your computer.
  • Send a Yahoo! Instant Message:
  • MSN Messenger Also with drawing and voice capabilities (when it works--I've found Yahoo is more reliable.)
    ---Must have MSN account (it's free!) and installed MSN Messenger (also free!) on your computer.

    Go back to the top of the page.


    The text below describes many of areas in which I offer tutoring and homework help.

    Chemistry Tutoring | Chemistry Tutor | Chemistry Homework Help:

    I've been a tutor in Tulsa off and on since 1991, a college chemistry and physics teacher, and a full-time private tutor for over 6 years. I started tutoring at Tulsa Jr College (now TCC). As a Tulsa Tutor I've worked with all ages, high school students, college students from TCC, ORU, TU, OU, & OSU, veterans programs, and the Oklahoma voc. rehab. program. I've helped many students in Tulsa pass their classes.

    The approach I take is to emphasize the basics such as unit conversions, conversion factors, and stoichiometry, because these are truly the heart of chemistry and without this understanding the student will certainly struggle. I have flowcharts and instructions that help anyone to understand the conversion process from volume to mass, mass to moles, moles to molecules or atoms, etc. From there I like to build on this solid foundation. I know that many chemistry students who come to me for tutoring are to the point where they are already struggling and are far along in the class, so I try to teach the basics as I’m working through the more advanced material such as thermodynamics, kinetics, equilibrium, acids and bases, coordination chemistry, nuclear chemistry, organic chemistry, etc.

    Many students come to me as a way to just improve their grades through homework help, as a sort of homework cheat. While I do my best to make sure the student turns in good homework, I also try to discourage cheating and focus on learning the material so that the student will do well on exams. At the same time, I know that not everyone enjoys or needs chemistry in their every day life or work. I do my best to make it interesting with interesting chemistry facts or stories and safety precautions to follow in the home and laboratory... and give students with the homework help they need at the same time. This way they see that chemistry can be useful and interesting.

    I’ve also given quite a bit of help to students who are taking online chemistry classes who need complicated material clarified and cannot get that from the website such as WebAssign or CourseCompass. This can be done through email, or chat. I can also help you find a chemistry tutor in your town. Or just click the "Find a Tutor" option at the top of the page.

    My favorite approach to tutoring is to try to allow the students to do as much of the work as they possibly can by themselves and I coach them along and do my best to smooth over the rough spots. I do not have a “method” or “strategy” for tutoring because each student is an individual. I don’t waste time with “evaluation” or “screening” because I can typically tell within 10 or 15 minutes of the tutoring session the level of learning the student has. I get right to work from the first couple of minutes with a student.

    Some Chemistry Topics that I Tutor:
    Basic Concepts of Chemistry: SI Units and unit conversions, a.k.a. “dimensional analysis” matter: elements and atoms, compounds, and molecules, difference b/w physical and chemical properties.
    Atoms, Molecules, and Ions: Atoms: Their Composition and Structure, Isotopes, Isotope Abundance and Atomic Weight, The Periodic Table, Molecular Formulas and Models, Ions and Ion Charges, Ionic Compounds, Naming Ionic Compounds, Coulomb's Law, Naming Binary, Nonmetal Compounds, Atoms and the Mole, Molecules, Compounds, and the Mole, Percent Composition, Empirical and Molecular Formulas, Determining Formulas from Mass Data.
    Chemical Reactions: Balancing Equations, Chemical Equilibrium, Ions and Molecules in Aqueous Solution, Precipitation Reactions and Net Ionic Equations, Acids and Bases and Their Reactions, Writing Net Ionic Equation, Gas-Forming Reactions, Oxidation Numbers, Oxidation-Reduction Reactions, Types of Reactions in Aqueous Solution.
    Stoichiometry: Quantitative Information About Chemical Reactions: Mass Relationships in Chemical Reactions: basic stoichiometry, Amounts Tables and Chemical Stoichiometry, Limiting Reactants, Percent Yield, Analysis of Mixtures, Using Stoichiometry to Determine Empirical and Molecular Formulas, Solution Concentration, Preparing Solutions, Serial Dilutions, Calculating and Using pH, Stoichiometry of Reactions in Solution, Titrations, Spectrophotometry.
    Principles of Chemical Reactivity: Energy and Chemical Reactions:
    Energy & Energy Units, Specific Heat Capacity, Changes of State, Enthalpy Changes & heat of reactions, Calorimetry, Hess's Law, and standard enthalpies of formation.
    Light and Energy Levels: How Electrons Behave (or Misbehave!) in the Atom: Electromagnetic Radiation, Electromagnetic Radiation and Planck's Equation, Photoelectric Effect, Atomic Spectra and the Bohr Atom, DeBroglie and Matter Waves, The Heisenberg Uncertainty Principle, Quantum Mechanics.
    The Structure of Atoms and Periodic Trends: Writing Electron Configurations of Atoms, Quantum Numbers and Electron Configurations, Electron Configurations of Atoms and Ions and Magnetic Behavior, Periodic Properties.
    Development of Chemistry and the Modern View of Atoms and Molecules: Valence Electrons and the Octet Rule, Lewis Electron Dot Structures, Formal Charge, Molecular Geometry Bond Polarity, electronegativity, and formal charge, Molecular Polarity, Bond Order and Bond Length, Bond Strength and Bond Dissociation Enthalpy
    Bonding and Molecular Structure: Orbital Hybridization and Molecular Orbitals: Valence Bond Theory & Molecular Orbital Theory.
    Organic Chemistry: Carbon: Not Just An Average Element: Alkanes and Cycloalkanes, Alkenes and Alkynes, Aromatic Compounds, Alcohols, Ethers, and Amines, Compounds with a Carbonyl Group, Functional Groups, Polymers.
    Gas Laws and Kinetic-Molecular Theory: Pressure, Boyle's Law and Charles's Law, The General Gas Law (Combined Gas Law), Avogadro's Hypothesis, Ideal Gas Law, Gas Density, Ideal Gas Laws and Determining Molar Mass, Gas Laws and Stoichiometry, Gas Mixtures and Dalton's Law, Kinetic-Molecular Theory, Diffusion and Effusion, Nonideal Gases.
    Intermolecular Forces and Liquids: Intermolecular Forces, Liquids, dipole moment, dipole-dipole, Van der Waals forces, London dispersion forces, hydrogen bonding, ion-dipole.
    The Chemistry of Solids: Metallic and Ionic Solids, Ionic Bonding and Lattice Energy, Other Types of Solids, Physical Properties of Solids, Phase Diagrams and Phase Changes.
    Solutions and Their Behavior (or misbehavior!): Concentration: Molarity, molality, % mass, mole fraction, ppm, ppb, The Solution Process, Henry's Law, Raoult's Law, Boiling Point Elevation, Freezing Point Depression, Colligative Properties and Molar Mass Determination, Colligative Properties of Ionic Compounds, Osmosis, Colloids.
    Chemical Kinetics: Reaction Rates, Concentration and Rate Equations, Concentration-Time Relationships (integrated rate equations), half-life, catalysts, Graphical Analysis: Rate Equations and k, Kinetics and Energy, Reaction Mechanisms.
    Principles of Reactivity: Chemical Equilibria: Writing Equilibrium Constant Expressions, The Equilibrium Constant and Reaction Quotient, Calculating an Equilibrium Constant, Using Equilibrium Constants, Manipulating Equilibrium Constant Expressions, Disturbing a Chemical Equilibrium.
    The Chemistry of Acids and Bases: The Brψnsted-Lowery acid and base definition, pH and pOH calculations, Equilibrium Constants for Acids and Bases, pKa : A Logarithmic Scale of Acid Strength, Ionization Constants for Weak Acids and Their Conjugate Bases, Predicting the Direction of Acid-Base Reactions, Types of Acid-Base Reactions, Using pH to Calculate Ionization Constants, Using Ionization Constants, Acid-Base Properties of Salts, pH after an Acid-Base Reaction, Polyprotic Acids and Bases, Lewis Acids and Bases, Molecular Structure, Bonding, and Acid-Base Behavior.
    Principles of Reactivity: Other Aspects of Aqueous Equilibria: The Common Ion Effect and Buffer Solutions, Using the Henderson-Hasselbach Equation. Preparing a Buffer Solution, Adding an Acid or a Base to a Buffer Solution, More about Acid-Base Reactions: Titrations, Titration Curves and Indicators, Solubility Guidelines, Writing Solubility Product Constant Expressions, Calculating Ksp, Estimating Salt Solubility from Ksp, The Common Ion Effect and Salt Solubility, The Effect of Basic Anions on Salt Solubility, Precipitation Reactions, Equilibria Involving Complex Ions.
    Principles of Reactivity: Entropy and Free Energy: Entropy, ΔT S°(universe) and Spontaneity, Gibbs Free Energy, Free Energy of Formation, Effect of Temperature on ΔG, Free Energy and Equilibrium Constants. Electrochemistry: Electron Transfer Reactions: Balancing Equations for Oxidation-Reduction Reactions, Constructing Voltaic Cells, Commercial Cells, Standard Electrochemical Potentials, Ranking Oxidizing and Reducing Agents, Electrochemical Cells Under Nonstandard Conditions, Electrochemistry, Thermodynamics, and Equilibrium, Electrolysis, Counting Electrons.
    The Chemistry of the Environment: Properties of the Elements, Hydrogen, Alkali Metals, Alkaline Earth Elements, Boron and Aluminum, Silicon, Nitrogen and Phosphorus, Oxygen and Sulfur, Fluorine and Chlorine.
    The Chemistry of the Transition Elements: Properties of Transition Elements, Formulas of Coordination Compounds, Naming Coordination Compounds, Isomerism, Magnetic Properties of Complexes, Spectroscopy of Complexes, Organometallic Compounds.
    Nuclear Chemistry: Nuclear Reactions, Nuclear Stability and Nuclear Decay, Rates of Radioactive Decay, Half-life and Carbon Dating.



    Math Tutoring | Math Tutor | Math Homework Help:

    I've been a tutor in Tulsa off and on since 1991, a college chemistry and physics teacher, and a full-time private tutor for over 6 years. I started tutoring at Tulsa Jr College (now TCC). As a Tulsa Tutor I've worked with all ages, high school students, college students from TCC, ORU, TU, OU, & OSU, veterans programs, and the Oklahoma voc. rehab. program. I've helped many students in Tulsa pass their classes.

    I can provide tutoring and homework help in all basic math, geometry, algebra, trig – trigonometry, and calculus problems, as well as basic statistics, differential equations, and finite math. These different classes require several different approaches.

    Many students try to get me just provide homework help and use my services as a homework cheat service and I try to discourage this because the students need to know the material to pass the exams. However, I do my best to make sure the student turns in good homework. I prefer to work with the student and have them do as much of the work themselves as possible, and I try to smooth over the rough areas - I prefer when the student takes an interst in learning as opposed to just wanting homework help and I do my best to spark an interest by applying math to something that holds the students interest.

    I’ve also given quite a bit of help to students who are taking online math classes who need complicated material clarified and cannot get that from the website such as WebAssign or CourseCompass. This can be done through email, or chat. I also provide help with online classes. Some students will try to use this as an way to cheat in online classes, but I try to provide help so that the students will learn and not just use this as an "online class cheat".

    I can help you find a math tutor in your town. Or just click the "Find a Tutor" option at the top of the page.

    Basic math and intro to algebra I focus on "practice makes perfect" and correct order of operations. One good way to get students to practice the basics is, I think, online math games. I have college students who still struggle w/ basic multiplication tables! This is just really memorization which can be helped through memory improving games. In basic math I can provide homework help in fractions, least common denominators, adding and subtracting negative numbers, long division, long multiplication, decimals, etc. This is all you need for your online class cheating.

    High school algebra and college algebra covers a wide range of topics! I try to take a more intuitive and graphical approach to algebra tutoring. Learning to graph equations is the key to understanding almost all of these topics. The TI-83, TI-84, and TI-89 calculators can greatly help in this area! And they are also good for solving systems of linear equations and matrix math. Any good math tutor can show you how to make the best use of your calculator. As a math tutor I provide homework help in: equations of a line, slope-intercept, factoring, the quadratic formula, polynomials, functions y = f(x), inverse functions, graphing rational expressions, translation of graphs, inequalities, systems of equations, matrices, parabolas, ellipses, hyperbolas, conic sections, circles, matrices, Descartes rule of signs, possible rational roots, etc., etc.

    Geometry can be difficult because it seems so easy and simple on the surface, but when it actually comes to proving a theorem or statement, things get to be a bit tricky! I focus more on logic and proof strategies than I do any specific problem or memorizing formulas, although those are also important, usually students don't struggle too much with the simple formulas. It's the proof-solving that gets to be a real killer in this class!

    Trigonometry ("Trig") starts fairly simple, but quickly becomes a real bear. It is important that students understand the early part of trig, the unit circle and basic trig functions (sine, cosine, tangent, cosecant, secant, cotangent). The key to trig is really just the Pythagorean Theorem and understanding that the trig functions are just ratios with triangles. Many students struggle with trig identities and solving trigonometric equations. And in tutoring I can show students strategies how to overcome these problems. I also provide tutoring with trigonometry involving complex numbers, the law of sines and the law of cosines.

    Calculus is one of the more difficult topics offered at high school or college and it really requires a good understanding of algebra and usually trig (with the exception of most business calculus classes. All math builds on what came before. Most of the mistakes made in calculus are not calculus mistakes, but algebra mistakes. As a math tutor, I do my best helping students avoid these mistakes. I also show strategies for differentiation, such as the power rule, quotient rule, chain rule, etc., as well as integration techniques, such as integration by parts, by partial fractions, trigonometric substitution, etc. I also tutor the more advanced calculus such as vector and 3D calculus. Most math tutors do not cover those topics. I also occasionally tutor basic differential equations, the math class just after calculus. I can also show students how to use a TI-89 calculator and/or "Derive 6" (a computer program) which will solve many calculus and algebra problems!

    Lastly I tutor the more business oriented classes of Finite Math & Statistics. Unfortunately these classes rely heavily on memorizing formulas and usually calculators or spreadsheet programs. These classes focus more on application rather than theory and are geared toward business, behavioral science and research, etc. A good math teacher or math tutor will try to take examples from an area that captures the student's interest.



    Physics Tutor | Physics Tutoring Service | Physics Homework Help:

    I've been a tutor in Tulsa off and on since 1991, a college chemistry and physics teacher, and a full-time private tutor for over 6 years. I started tutoring at Tulsa Jr College (now TCC). As a Tulsa Tutor I've worked with all ages, high school students, college students from TCC, ORU, TU, OU, & OSU, veterans programs, and the Oklahoma voc. rehab. program. I've helped many students in Tulsa pass their classes.

    As a physics tutor, I focus heavily on showing students how to make drawings of their physics problems and I insist that they try this themselves. A picture is worth 1000 words and if the student can draw the picture, they will have a much better understanding of what the problem is asking.

    I provide homework help with the following topics:
    Equations of Motion (Kinematics), Newton’s first Law, Newton’s 2nd Law, F = ma, torque, rotational motion, acceleration, angular acceleration, work, W = Fd, Power, P = W/t, Thermodynamics, relativity, Newtonian motion, vector addition (both graphically and analytically), cross product, dot product, balancing forces, equilibrium, balancing torques, etc.

    Physics II (or the 2nd half of high school physics) is quite a bit different from physics I in that it deals with electricity and magnetism which is very difficult to visualize (and also to draw!), and so it is important that the student understands all the tricks to visualizing (and drawing!) these unfamiliar forces. I provide homework help with electric Fields, electric potential, electric forces, electric flux, circuits, and magnetism.

    I provide tutoring and homework help in high school physics, general physics, and calculus based physics for engineers.

    I prefer that the student doesn't use my tutor service as a way to cheat or just get "homework help"- students need to understand the material to pass the exams! However, I do my best to make sure the student turns in good homework.

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