Unit 8 · Acids and Bases

Chapter 8.4

Structure, Strength, and the Meaning of pK_a

Hydrochloric acid and acetic acid both hold one proton, and one lets go a million times more readily. The difference is written in their structures, and pK_a is the number that reads it.

in preparation · lesson 38 of 45

By the end

  1. 01Explain acid and base strength from molecular structure, including conjugate-base stability and electronegativity
  2. 02Predict which form of a weak acid or base predominates at a given pH
  3. 03Explain how an indicator changes color and choose one for an equivalence point

In unit 8

  1. 8.1Water, pH, and Strong Acids and Bases
  2. 8.2Weak Acid and Weak Base Equilibria
  3. 8.3Acid–Base Reactions and Titration Curves
  4. 8.4Structure, Strength, and the Meaning of pK_a
  5. 8.5Buffers: Resisting pH Change
  6. 8.6pH and Solubility
RELUE© MMXXVI

AP® is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this content.