AP Chemistry Cram Session 2025 | Review the ENTIRE AP Chem Course Before Exam Day

Units 1 & 2: Atomic Structure, Periodic Trends, and Bonding00:01:08

Covers mass percent calculations, isotopes via mass spectrometry, electron configurations, periodic trends (atomic/ionic radius and ionization energy), photoelectron spectroscopy (PES), Lewis dot structures, hybridization, and molecular geometry.

Intermolecular Forces and Properties00:27:35

Discusses London dispersion forces, dipole-dipole interactions, and hydrogen bonding, along with how these forces influence the melting points of ionic compounds and solubility.

Unit 3 & 4: Gases, Solutions, and Chemical Reactions00:32:20

Explains the Ideal Gas Law (PV=nRT), spectrophotometry (Beer-Lambert Law), net ionic equations, and stoichiometry for various reaction types including precipitation and combustion.

Unit 5: Kinetics and Rate Laws00:47:39

Focuses on determining reaction orders using experimental data, deriving rate laws, identifying rate constants with appropriate units, and analyzing reaction mechanisms.

Unit 6: Thermochemistry00:55:53

Reviews calorimetry using Q=mcΔT, reading heating curves, and calculating enthalpy changes of reactions using enthalpies of formation.

Unit 7 & 8: Equilibrium, Acids, and Bases01:04:34

Covers equilibrium constants (Kc/Kp), reaction quotients (Q), Le Chatelier's Principle, pH/pOH calculations, strong vs. weak acid/base behavior, and titration curves.

Unit 9: Thermodynamics and Electrochemistry01:34:26

Explains entropy, thermodynamic favorability via Gibbs Free Energy (ΔG), and the operation of galvanic/voltaic cells, including standard reduction potentials and overall balanced cell equations.