College Board-Aligned
AP Chemistry
AP Chemistry is organized here using the current College Board nine-unit course outline. Each topic below links to original local notes built for studying and review.
Units & Topics
Unit 1: Atomic Structure and Properties
Students study the composition of atoms and how chemists measure, identify, and categorize matter at the particle level. On the AP exam: 7%-9%.
- Topic 1.1: Moles and molar mass Original Notes
- Topic 1.2: Mass spectra of elements Original Notes
- Topic 1.3: Elemental composition of pure substances Original Notes
- Topic 1.4: Composition of mixtures Original Notes
- Topic 1.5: Atomic structure and electron configuration Original Notes
- Topic 1.6: Photoelectron spectroscopy Original Notes
- Topic 1.7: Periodic trends Original Notes
- Topic 1.8: Valence electrons and ionic compounds Original Notes
Unit 2: Compound Structure and Properties
Students connect chemical bonding and molecular structure to the properties of compounds. On the AP exam: 7%-9%.
- Topic 2.1: Types of chemical bonds Original Notes
- Topic 2.2: Intramolecular force and potential energy Original Notes
- Topic 2.3: Structure of ionic solids Original Notes
- Topic 2.4: Structure of metals and alloys Original Notes
- Topic 2.5: Lewis diagrams Original Notes
- Topic 2.6: Resonance and formal charge Original Notes
- Topic 2.7: VSEPR and hybridization Original Notes
Unit 3: Properties of Substances and Mixtures
Students examine how particles interact in solids, liquids, gases, solutions, and mixtures. On the AP exam: 18%-22%.
- Topic 3.1: Intermolecular forces Original Notes
- Topic 3.2: Solids, liquids, and gases Original Notes
- Topic 3.3: Kinetic molecular theory Original Notes
- Topic 3.4: Solutions and mixtures Original Notes
- Topic 3.5: Properties of photons Original Notes
- Topic 3.6: Spectroscopy Original Notes
Unit 4: Chemical Reactions
Students represent chemical change, classify reactions, and use stoichiometry to connect particle ratios with measurable quantities. On the AP exam: 7%-9%.
- Topic 4.1: Introduction for reactions Original Notes
- Topic 4.2: Net ionic equations Original Notes
- Topic 4.3: Representations of reactions Original Notes
- Topic 4.4: Physical and chemical changes Original Notes
- Topic 4.5: Stoichiometry Original Notes
- Topic 4.6: Types of chemical reactions Original Notes
Unit 5: Kinetics
Students investigate reaction rates, rate laws, collision theory, mechanisms, energy profiles, and catalysts. On the AP exam: 7%-9%.
- Topic 5.1: Reaction rate Original Notes
- Topic 5.2: Introduction to rate law Original Notes
- Topic 5.3: Elementary reactions Original Notes
- Topic 5.4: Collision model Original Notes
- Topic 5.5: Introduction to reaction mechanisms Original Notes
- Topic 5.6: Multistep reaction energy profile Original Notes
- Topic 5.7: Catalysis Original Notes
Unit 6: Thermochemistry
Students study heat transfer and enthalpy changes in chemical and physical processes. On the AP exam: 7%-9%.
- Topic 6.1: Endothermic and exothermic processes Original Notes
- Topic 6.2: Heat transfer and thermal equilibrium Original Notes
- Topic 6.3: Heat capacity and calorimetry Original Notes
- Topic 6.4: Energy of phase changes Original Notes
- Topic 6.5: Introduction to enthalpy of reaction Original Notes
- Topic 6.6: Enthalpy of formation Original Notes
- Topic 6.7: Hess's law Original Notes
Unit 7: Equilibrium
Students describe reversible reactions, equilibrium constants, equilibrium concentrations, and system shifts. On the AP exam: 7%-9%.
- Topic 7.1: Introduction to equilibrium Original Notes
- Topic 7.2: Calculating the equilibrium constant Original Notes
- Topic 7.3: Calculating equilibrium concentrations Original Notes
- Topic 7.4: Introduction to Le Chatelier's principle Original Notes
- Topic 7.5: Introduction to solubility equilibria Original Notes
Unit 8: Acids and Bases
Students connect acid-base models, pH calculations, buffers, molecular structure, and solubility effects. On the AP exam: 11%-15%.
- Topic 8.1: Introduction to acids and bases Original Notes
- Topic 8.2: pH and pOH of strong acids and bases Original Notes
- Topic 8.3: Acid-base reactions and buffers Original Notes
- Topic 8.4: Molecular structure of acids and bases Original Notes
- Topic 8.5: pH and pKa Original Notes
- Topic 8.6: Properties of buffers Original Notes
- Topic 8.7: pH and solubility Original Notes
Unit 9: Thermodynamics and Electrochemistry
Students study entropy, Gibbs free energy, equilibrium connections, and electrochemical cells. On the AP exam: 7%-9%.
- Topic 9.1: Introduction to entropy Original Notes
- Topic 9.2: Gibbs free energy and thermodynamic favorability Original Notes
- Topic 9.3: Thermodynamic and kinetic control Original Notes
- Topic 9.4: Free energy and equilibrium Original Notes
- Topic 9.5: Free energy of dissolution Original Notes
- Topic 9.6: Galvanic (voltaic) and electrolytic cells Original Notes
- Topic 9.7: Electrolysis and Faraday's laws Original Notes
Notes
Original EduCompanion Notes
These local notes follow the current College Board AP Chemistry unit/topic list.
Unit 1: Atomic Structure and Properties
Topic 1.1: Moles and molar mass
Open College Board-aligned original notes
Topic 1.2: Mass spectra of elements
Open College Board-aligned original notes
Topic 1.3: Elemental composition of pure substances
Open College Board-aligned original notes
Topic 1.4: Composition of mixtures
Open College Board-aligned original notes
Topic 1.5: Atomic structure and electron configuration
Open College Board-aligned original notes
Topic 1.6: Photoelectron spectroscopy
Open College Board-aligned original notes
Topic 1.7: Periodic trends
Open College Board-aligned original notes
Topic 1.8: Valence electrons and ionic compounds
Open College Board-aligned original notes
Unit 2: Compound Structure and Properties
Topic 2.1: Types of chemical bonds
Open College Board-aligned original notes
Topic 2.2: Intramolecular force and potential energy
Open College Board-aligned original notes
Topic 2.3: Structure of ionic solids
Open College Board-aligned original notes
Topic 2.4: Structure of metals and alloys
Open College Board-aligned original notes
Topic 2.5: Lewis diagrams
Open College Board-aligned original notes
Topic 2.6: Resonance and formal charge
Open College Board-aligned original notes
Topic 2.7: VSEPR and hybridization
Open College Board-aligned original notes
Unit 3: Properties of Substances and Mixtures
Topic 3.1: Intermolecular forces
Open College Board-aligned original notes
Topic 3.2: Solids, liquids, and gases
Open College Board-aligned original notes
Topic 3.3: Kinetic molecular theory
Open College Board-aligned original notes
Topic 3.4: Solutions and mixtures
Open College Board-aligned original notes
Topic 3.5: Properties of photons
Open College Board-aligned original notes
Topic 3.6: Spectroscopy
Open College Board-aligned original notes
Unit 4: Chemical Reactions
Topic 4.1: Introduction for reactions
Open College Board-aligned original notes
Topic 4.2: Net ionic equations
Open College Board-aligned original notes
Topic 4.3: Representations of reactions
Open College Board-aligned original notes
Topic 4.4: Physical and chemical changes
Open College Board-aligned original notes
Topic 4.5: Stoichiometry
Open College Board-aligned original notes
Topic 4.6: Types of chemical reactions
Open College Board-aligned original notes
Unit 5: Kinetics
Topic 5.1: Reaction rate
Open College Board-aligned original notes
Topic 5.2: Introduction to rate law
Open College Board-aligned original notes
Topic 5.3: Elementary reactions
Open College Board-aligned original notes
Topic 5.4: Collision model
Open College Board-aligned original notes
Topic 5.5: Introduction to reaction mechanisms
Open College Board-aligned original notes
Topic 5.6: Multistep reaction energy profile
Open College Board-aligned original notes
Topic 5.7: Catalysis
Open College Board-aligned original notes
Unit 6: Thermochemistry
Topic 6.1: Endothermic and exothermic processes
Open College Board-aligned original notes
Topic 6.2: Heat transfer and thermal equilibrium
Open College Board-aligned original notes
Topic 6.3: Heat capacity and calorimetry
Open College Board-aligned original notes
Topic 6.4: Energy of phase changes
Open College Board-aligned original notes
Topic 6.5: Introduction to enthalpy of reaction
Open College Board-aligned original notes
Topic 6.6: Enthalpy of formation
Open College Board-aligned original notes
Topic 6.7: Hess's law
Open College Board-aligned original notes
Unit 7: Equilibrium
Topic 7.1: Introduction to equilibrium
Open College Board-aligned original notes
Topic 7.2: Calculating the equilibrium constant
Open College Board-aligned original notes
Topic 7.3: Calculating equilibrium concentrations
Open College Board-aligned original notes
Topic 7.4: Introduction to Le Chatelier's principle
Open College Board-aligned original notes
Topic 7.5: Introduction to solubility equilibria
Open College Board-aligned original notes
Unit 8: Acids and Bases
Topic 8.1: Introduction to acids and bases
Open College Board-aligned original notes
Topic 8.2: pH and pOH of strong acids and bases
Open College Board-aligned original notes
Topic 8.3: Acid-base reactions and buffers
Open College Board-aligned original notes
Topic 8.4: Molecular structure of acids and bases
Open College Board-aligned original notes
Topic 8.5: pH and pKa
Open College Board-aligned original notes
Topic 8.6: Properties of buffers
Open College Board-aligned original notes
Topic 8.7: pH and solubility
Open College Board-aligned original notes
Unit 9: Thermodynamics and Electrochemistry
Topic 9.1: Introduction to entropy
Open College Board-aligned original notes
Topic 9.2: Gibbs free energy and thermodynamic favorability
Open College Board-aligned original notes
Topic 9.3: Thermodynamic and kinetic control
Open College Board-aligned original notes
Topic 9.4: Free energy and equilibrium
Open College Board-aligned original notes
Topic 9.5: Free energy of dissolution
Open College Board-aligned original notes
Topic 9.6: Galvanic (voltaic) and electrolytic cells
Open College Board-aligned original notes
Topic 9.7: Electrolysis and Faraday's laws
Open College Board-aligned original notes
Shared Google Drive Notes
These are the notes from your shared Drive. Some titles may follow your folder organization rather than the current College Board topic names.
Unit 1
Unit 2
Unit 3
Unit 3 Topic 1: Intermolecular Forces and Properties - Intermolecular Forces (IMFs)
Open Google Docs notes
Unit 3 Topic 2: Intermolecular Forces and Properties - Properties of Solids
Open Google Docs notes
Unit 3 Topic 3: Intermolecular Forces and Properties - Solids, Liquids, and Gases
Open Google Docs notes
Unit 3 Topic 4: Intermolecular Forces and Properties - Ideal Gas Law
Open Google Docs notes
Unit 3 Topic 5: Intermolecular Forces and Properties - Applications of the Ideal Gas Law
Open Google Docs notes
Unit 3 Topic 6: Intermolecular Forces and Properties - Kinetic Molecular Theory
Open Google Docs notes
Unit 3 Topic 7: Intermolecular Forces and Properties - Deviation from Ideal Behavior
Open Google Docs notes
Unit 4
Unit 4 Topic 1: Introduction to Reactions
Open Google Docs notes
Unit 4 Topic 2: Net Ionic Equations
Open Google Docs notes
Unit 4 Topic 3: Representations of Reactions
Open Google Docs notes
Unit 4 Topic 4: Types of Chemical Reactions
Open Google Docs notes
Unit 4 Topic 5: Stoichiometry of Reactions
Open Google Docs notes
Unit 4 Topic 6: Solution Stoichiometry
Open Google Docs notes
Unit 4 Topic 7: Limiting Reactants and Percent Yield
Open Google Docs notes
Unit 4 Topic 8: Titration and Acid-Base Reactions
Open Google Docs notes
Unit 5
Unit 6
Unit 7
Unit 9
Unit 9, Topic 1: Introduction to Organic Chemistry
Open Google Docs notes
Unit 9, Topic 2: Hydrocarbons and Functional Groups
Open Google Docs notes
Unit 9, Topic 3: Isomerism in Organic Molecules
Open Google Docs notes
Unit 9, Topic 4: Introduction to Reactions Involving Organic Compounds
Open Google Docs notes
Practice Questions
Practice sets can be added after you approve the updated topic alignment. For now, each original notes page includes quick practice prompts.
Study Guides
Use the unit/topic notes above as the study guide index. Once you approve this AP Chemistry structure, I can generate cumulative unit review guides too.