Quick answer: This page gathers the 16 lessons of AP Chemistry, one per chapter: mole concept, photoelectron spectroscopy, VSEPR theory, intermolecular forces, ideal gas law, Beer-Lambert law, net ionic equation, rate law and 8 more. Each lesson gives a quick answer, worked examples, diagrams and key points, with a free PDF download. Written by a team of 12 qualified science teachers.
All the AP Chemistry lessons are on this page, chapter by chapter: each lesson gives a quick answer, worked examples and diagrams, with a free PDF download. Back to the AP Chemistry overview.
AP Chemistry lessons by chapter
AP Chemistry lessons
Clear science lessons with diagrams, laws, formulas and worked examples.
Moles, isotopes and chemical formulas
Mole concept notes (AP Chemistry): mole concept, molar mass, mass spectra, empirical formulas and mixtures for AP Chemistry unit 1: worked examples.
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Electron configurations, PES and periodic trends
Photoelectron spectroscopy notes (AP Chemistry): electron configurations, photoelectron spectroscopy and Coulomb's law trends for AP Chemistry.
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Lewis structures, shapes and hybridization of molecules
Vsepr theory notes (AP Chemistry): lewis structures, formal charge, resonance, VSEPR shapes and hybridization for AP Chemistry unit 2: worked examples.
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Forces between particles and what they decide
Intermolecular forces notes (AP Chemistry): london dispersion, dipole-dipole and hydrogen bonding, and how they set boiling point.
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Gas laws and particle motion
Ideal gas law notes (AP Chemistry): understand PV = nRT, Dalton's law of partial pressures.
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Concentration, separation and absorbance
Beer-Lambert law notes (AP Chemistry): learn molarity, dilution, chromatography R_f values and the Beer-Lambert law A = εbc.
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Net ionic equations, titration and redox
Net ionic equation notes (AP Chemistry): write net ionic equations, predict precipitates.
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Rate laws, orders and half-lives
Learn rate laws, reaction orders, integrated rate laws and half-life for AP Chemistry Unit 5, with worked examples, graphs and a free worksheet with answers
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Mechanisms, catalysts and activation energy
Reaction mechanism notes (AP Chemistry): learn reaction mechanisms, rate-determining steps, energy profiles.
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Heat, enthalpy and Hess's law
Thermochemistry notes (AP Chemistry): learn calorimetry, enthalpy change, Hess's law, enthalpies of formation and bond enthalpies for AP Chemistry Unit 6.
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Equilibrium constants and shifts
Chemical equilibrium notes (AP Chemistry): learn chemical equilibrium for AP Chemistry: K and Q, ICE tables, Kp and Kc, and Le Chatelier's principle.
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Strong and weak acids, bases and pH
Acids and bases pH notes (AP Chemistry): learn how to calculate pH for strong and weak acids and bases using Ka, Kb and ICE tables.
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Buffers, titration curves and indicators
Buffer solutions notes (AP Chemistry): learn how buffers work, how to use the Henderson–Hasselbalch equation, read titration curves and choose indicators.
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Ksp, precipitation and the common ion effect
Solubility product Ksp notes (AP Chemistry): learn solubility equilibria: write Ksp expressions, calculate molar solubility.
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Entropy, Gibbs energy and spontaneity
Gibbs free energy notes (AP Chemistry): learn entropy, Gibbs free energy, spontaneity and the link between ΔG° and K with worked AP Chemistry examples.
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Cells, cell potential and electrolysis
Electrochemistry notes (AP Chemistry): learn galvanic and electrolytic cells, E°cell, ΔG° = −nFE° and Faraday's law with worked AP Chemistry examples.
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