3.1.12Physical chemistry
Acids & Bases
Brønsted-Lowry acids and bases, pH, Ka and weak acids, buffers, and titration curves and indicators.
- Year 2 (A-level)
- 5 lessons
- Exam practice and flashcards
- LESSON 1Brønsted-Lowry Theory
Brønsted-Lowry acids and bases, proton transfers, conjugate acid-base pairs, and strong vs weak acid dissociation.
- LESSON 2pH & Hydrogen Ion Concentration
The pH scale, calculating strong acid pH, the ionic product of water (Kw), and calculating strong base pH.
- LESSON 3Ka & Weak Acids
The acid dissociation constant Ka, pKa, and calculating the pH of weak acids using approximations.
- LESSON 4Buffer Solutions
Acidic and basic buffer systems, buffer mechanisms, and calculating the pH of buffer mixtures.
- LESSON 5Titration Curves & Indicators
The four titration curve shapes, equivalence points, selection of suitable indicators, and buffer regions.