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Your child's own
world‑class AP Chemistry tutor
Pioneered by Stanford AI researchers and learning scientists, Aristotle is the world's first voice-based AI chemistry tutor.
Built for the AP Chemistry course and exam, Aristotle has improved thousands of grades over 22% within a week.
Trusted by families at
The curriculum
Over 240 AP Chemistry skills, personalized to your child
Aristotle is designed to always know what to teach at exactly the right time.
Sample curriculum
+ 7 more science subjects available
* Click a topic to see the skills inside
Atomic Structure and Properties
Compound Structure and Properties
Properties of Substances and Mixtures
Chemical Reactions
Kinetics
Thermochemistry
Equilibrium
Acids and Bases
Thermodynamics and Electrochemistry
AP Chemistry tutoring curriculum241 skills across 9 units
Atomic Structure and Properties
AP Exam weighting: 7-9%. Topics: Moles and Molar Mass, Mass Spectra of Elements, Elemental Composition of Pure Substances, Composition of Mixtures, Atomic Structure and Electron Configuration, Photoelectron Spectroscopy, Periodic Trends, Valence Electrons and Ionic Compounds.
Compound Structure and Properties
AP Exam weighting: 7-9%. Topics: Types of Chemical Bonds, Intramolecular Force and Potential Energy, Structure of Ionic Solids, Structure of Metals and Alloys, Lewis Diagrams, Resonance and Formal Charge, VSEPR and Hybridization.
Properties of Substances and Mixtures
AP Exam weighting: 18-22%. Topics: Intermolecular and Interparticle Forces, Properties of Solids, Solids, Liquids, and Gases, Ideal Gas Law, Kinetic Molecular Theory, Deviation from Ideal Gas Law, Solutions and Mixtures, Representations of Solutions, Separation of Solutions and Mixtures, Solubility, Spectroscopy and the Electromagnetic Spectrum, Properties of Photons, Beer-Lambert Law.
Chemical Reactions
AP Exam weighting: 7-9%. Topics: Introduction for Reactions, Net Ionic Equations, Representations of Reactions, Physical and Chemical Changes, Stoichiometry, Introduction to Titration, Types of Chemical Reactions, Introduction to Acid-Base Reactions, Oxidation-Reduction (Redox) Reactions.
Kinetics
AP Exam weighting: 7-9%. Topics: Reaction Rates, Introduction to Rate Law, Concentration Changes Over Time, Elementary Reactions, Collision Model, Reaction Energy Profile, Introduction to Reaction Mechanisms, Reaction Mechanism and Rate Law, Pre-Equilibrium Approximation, Multistep Reaction Energy Profile, Catalysis.
Thermochemistry
AP Exam weighting: 7-9%. Topics: Endothermic and Exothermic Processes, Energy Diagrams, Heat Transfer and Thermal Equilibrium, Heat Capacity and Calorimetry, Energy of Phase Changes, Introduction to Enthalpy of Reaction, Bond Enthalpies, Enthalpy of Formation, Hess’s Law.
Equilibrium
AP Exam weighting: 7-9%. Topics: Introduction to Equilibrium, Direction of Reversible Reactions, Reaction Quotient and Equilibrium Constant, Calculating the Equilibrium Constant, Magnitude of the Equilibrium Constant, Properties of the Equilibrium Constant, Calculating Equilibrium Concentrations, Representations of Equilibrium, Introduction to Le Châtelier’s Principle, Reaction Quotient and Le Châtelier’s Principle, Introduction to Solubility Equilibria, Common-Ion Effect.
Acids and Bases
AP Exam weighting: 11-15%. Topics: Introduction to Acids and Bases, pH and pOH of Strong Acids and Bases, Weak Acid and Base Equilibria, Acid-Base Reactions and Buf fers, Acid-Base Titrations, Molecular Structure of Acids and Bases, pH and pKa, Properties of Buf fers, Henderson-Hasselbalch Equation, Buffer Capacity, pH and Solubility.
Thermodynamics and Electrochemistry
AP Exam weighting: 7-9%. Topics: Introduction to Entropy, Absolute Entropy and Entropy Change, Gibbs Free Energy and Thermodynamic Favorability, Thermodynamic and Kinetic Control, Free Energy and Equilibrium, Free Energy of Dissolution, Coupled Reactions, Galvanic (Voltaic) and Electrolytic Cells, Cell Potential and Free Energy, Cell Potential Under Nonstandard Conditions, Electrolysis and Faraday’s Law.
From our families
What parents are telling us
“My son told me yesterday that we should cancel his human tutor, Aristotle is doing a better job. The human tutor was $250/hour.”
“Sam got an A+. So it def worked!!!”
Why families switch
Everything an hourly tutor can't be
On demand, 24/7
No scheduling, no weekly slot. Help is there during homework at 9pm and the morning before the test.
A fraction of the cost
Unlimited sessions on a flat plan instead of paying a human tutor by the hour.
Truly personalized
Aristotle tracks every skill your child has mastered and teaches at their exact frontier: never too easy, never too far ahead.
Driven by science
How Aristotle works
Fits your child's AP Chemistry class
Aligned to the College Board framework
College Board framework
Every AP Chemistry skill maps to a unit and topic in the College Board's course and exam description, so sessions match what the exam tests.
Your child's school
Share your teacher's syllabus, textbook, or pacing guide and sessions follow your child's actual AP class.
Your exam goal
Aiming for a 5, or just to pass? Aristotle builds the path backwards from your target score and the May exam date.
FAQ
Common questions about online AP Chemistry tutoring
Aristotle's AP Chemistry course maps 241 skills to all nine units of the College Board framework: Atomic Structure and Properties, Compound Structure and Properties, Properties of Substances and Mixtures, Chemical Reactions, Kinetics, Thermochemistry, Equilibrium, Acids and Bases, and Thermodynamics and Electrochemistry. Every skill is tied to the framework and linked to its prerequisites, so the tutor always knows which part of the course your child has mastered and what still needs work.
Aristotle works unit by unit to find your child's weak spots and focus there. The exam does not weight units equally: Properties of Substances and Mixtures carries 18 to 22 percent of the score and Acids and Bases 11 to 15 percent, so review time goes where the points are. Because all 241 skills are tracked, the tutor separates topics your child has mastered from ones they only half understand, whether they are reviewing one unit before a test or the whole framework before the May exam.
AP Chemistry is a college-level course graded against the College Board framework, not a general standard. It moves faster, leans harder on quantitative reasoning, and its free-response questions ask students to justify claims with particulate-level models rather than just produce a number. Aristotle's AP course tracks 241 skills mapped to that framework and tunes every session to the exam standard, including the explanation and justification the readers actually score.
Your child talks through problems out loud with Aristotle on a shared whiteboard, whether that is building an ICE table for an equilibrium problem, working a thermochemistry calculation, or sketching the titration curve of a weak acid. Aristotle asks questions, listens to their reasoning, and guides them to the answer instead of handing it over. Sessions start whenever your child is ready, with no scheduling, available 24/7, the night before a unit test or during homework.
Chemistry tutors charge $50 to $85 an hour, and AP or Honors tutoring often adds a 20 to 40 percent premium, which puts three hours a week at $600 a month or more. Aristotle costs $299 a month for unlimited sessions across every subject, or $49 for a single session.
Chatbots hand your child the answer and forget them when the chat ends. Aristotle teaches the way expert AP tutors do: it asks your child to explain their reasoning, finds the misconception underneath a wrong answer, and guides them with questions until they can work the problem themselves. It also carries the learning process across sessions, remembering which of the nine units your child has mastered and planning what to review next, like a tutor who never forgets.
Yes. Parents get a summary after every session, and the parent dashboard shows which AP Chemistry units your child has mastered and where they are stuck. Sessions are reviewed, and every tutor response is checked before it reaches your child.
Yes. AP Chemistry stacks concepts fast, and a struggle in Equilibrium or Acids and Bases usually traces back further, sometimes to the mole concept or stoichiometry from earlier chemistry, sometimes to the algebra and logarithms underneath pH calculations. Each of the 241 skills is linked to its prerequisites, so Aristotle finds the exact earlier skill that is missing and rebuilds from there, instead of repeating the same lesson louder. Your child can catch up mid-course without starting the year over.
Meet your child's AP Chemistry tutor
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