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Wyatt's Notes — Qualifications

AP Chemistry

AP Chemistry

Comprehensive revision notes for AP Chemistry, aligned with the College Board Course and Exam Description.

These notes cover the full AP Chemistry curriculum, from atomic structure and bonding through to kinetics, equilibrium, and thermodynamics. Each topic page includes key definitions, worked calculations, and visual explanations to support both the multiple-choice and free-response sections of the AP exam. The content is structured around the College Board’s six Big Ideas and their associated science practices.

Topics

Topics Covered

  • Atomic Structure and Periodicity — electron configurations, periodic trends, photoelectric effect, spectroscopy
  • Bonding and Intermolecular Forces — ionic, covalent, and metallic bonding, VSEPR theory, hybridisation, polarity, IMF types
  • Stoichiometry — mole calculations, limiting reagents, per cent composition, empirical and molecular formulae, solution stoichiometry
  • Thermodynamics — enthalpy, Hess’s law, calorimetry, entropy, Gibbs free energy, spontaneous and non-spontaneous processes
  • Kinetics and Equilibrium — rate laws, reaction mechanisms, collision theory, Le Chatelier’s principle, equilibrium constants (Kc, Kp), acid-base equilibria

How to Use These Notes

  • Start with the topics you find most challenging and work through the notes systematically
  • Try to explain each concept back in your own words after reading a section
  • Use the topic links above to jump between related concepts when revising
  • Combine these notes with past paper practice for the best results

Study Tips

  • Memorise key equations and constants early; the AP equation sheet is provided but knowing when to apply each formula saves valuable time
  • Practise balancing redox reactions and writing net ionic equations — they appear frequently in both multiple-choice and free-response sections
  • Draw particle-level diagrams to explain phenomena such as intermolecular forces and colligative properties
  • Review laboratory concepts (experimental design, error analysis, significant figures) as they are tested on the free-response section
  • Keep a formula reference sheet and annotate it with notes about when each equation applies and what units to use
  • Practise explaining chemical reasoning in full sentences; the free-response section requires written justifications, not just numerical answers
  • Use past FRQ scoring guidelines to learn the specific phrasing and level of detail examiners expect
  • Keep a mistake log of questions you get wrong in practice and review it before the exam to avoid repeating the same errors
  • Review the AP Chemistry science practices (modelling, data analysis, argumentation) alongside content — they are assessed throughout the exam

Summary

The key principles covered in this topic are linked in the sub-pages above. Focus on understanding the definitions, applying the formulas or frameworks, and evaluating strengths and limitations of each approach.

Worked Examples

Worked examples demonstrating the application of key concepts are covered in the detailed sub-pages linked above.

Common Pitfalls

  • Confusing terminology or concepts that appear similar but have distinct meanings.
  • Overlooking key assumptions or boundary conditions that limit applicability.