College Board·Exam in May

AP ChemistryFree Prep Tools & Simulators

Every interactive lab on TheChemSolver is mapped to an AP Chemistry unit. Use them to build the deep conceptual understanding the FRQ section demands — not just MCQ elimination practice.

Start with Titration SimulatorBrowse All Labs →
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Section I — MCQ
60 questions · 90 min · 50% of score
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Section II — FRQ
7 questions (3 long, 4 short) · 105 min · 50% of score
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Calculator
Allowed on entire exam
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Exam date
First Monday of May each year

Labs by AP Unit

Click any simulator to open it — no login, no signup

Unit 1
Atomic Structure & Properties
Quantum Number Explorer →Radial Probability Density →Atomic Evolution Lab →Interactive Periodic Table →Periodic Properties →IUPAC Nomenclature Engine →
Unit 2
Molecular & Ionic Compound Structure
VSEPR & Molecular Geometry →Hybridization Explorer →Hydrocarbon Structure Builder →
Unit 3
Intermolecular Forces & Properties
VSEPR & Molecular Geometry →Periodic Properties →
Unit 4
Chemical Reactions
Organic Mechanism Viewer →3D Reaction Mechanism Viewer →
Unit 5
Kinetics
Reaction Kinetics Simulator →
Unit 6
Thermodynamics
Thermodynamics Calculator →
Unit 7
Equilibrium
Chemical Equilibrium Lab →Ionic Equilibrium & Buffer →
Unit 8
Acids & Bases
Titration Curve Simulator →Ionic Equilibrium & Buffer →
Unit 9
Applications of Thermodynamics
Electrochemical Cell Simulator →Electrochemistry Simulator →Thermodynamics Calculator →

Coming Soon

In Development
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MCQ Question Bank
60-question timed practice sets from past AP exams (2000–2025)
Q3 2025
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FRQ Past Papers
All AP Chemistry FRQs with model answers, 2012–2025
Q3 2025
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Unit-wise Practice
Filter practice by Unit 1–9 and question type
Q3 2025
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Score Predictor
Track performance and predict 5-score probability
Q4 2025

Start Prepping Now

No account needed. Every tool is free, forever.

Practice MCQ & FRQ →
Titration SimulatorEquilibrium LabKinetics SimulatorThermodynamicsElectrochemistryQuantum Orbitals