AP Chemistry · Exam guides

AP Chemistry Exam Guides

Free plain-language guides to the AP Chemistry exam: how each section is scored, worked examples with weak and strong answers, and the mistakes that cost points. Start with the overview, then open the guide for the question you want to practice.

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• AP Chemistry FRQ Guide: Long and Short Questions, Units and Particle Explanations
  Three long and four short questions, how calculation and particle-level explanation are scored, a worked titration, and common mistakes.

Free-response and writing

• AP Chemistry Equilibrium Question Explained: ICE Tables, Q Versus K and Le Chatelier
  Writing K, building an ICE table, comparing Q with K, and justifying a shift, with a worked example and common mistakes.
• AP Chemistry Acid-Base and Buffer Question Explained: pH, Ka and the Henderson-Hasselbalch Equation
  PH of a weak acid, buffer pH, and how a buffer resists change, with a worked acetic acid example.
• AP Chemistry Particle-Level Explanations: How to Explain Trends, Boiling Points and Bonding
  A four-part pattern, with worked examples on ionization energy and boiling point.
• AP Chemistry Lab and Data Questions Explained: Graphs, Beer's Law and Sources of Error
  Using a calibration line, titration data, and explaining how an error would change a result.

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