Cambridge AS & A Level Chemistry
7.2Brønsted-Lowry theory of acids and bases
Brønsted-Lowry theory of acids and bases in Cambridge AS & A Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic41 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 7.2.1Name the common acids: hydrochloric, sulfuric, nitric and ethanoic acid.
- 7.2.2Name the common alkalis: sodium hydroxide, potassium hydroxide and ammonia.
- 7.2.3Describe the Brønsted-Lowry theory of acids and bases.
- 7.2.4Describe strong acids and bases as fully dissociated and weak ones as partially dissociated.
- 7.2.5Relate pH 7, below 7 and above 7 to neutral, acidic and alkaline solutions.
- 7.2.6Explain qualitative differences between strong and weak acids (reaction with a reactive metal, pH, conductivity).
- 7.2.7Describe neutralisation as H⁺(aq) and OH⁻(aq) forming water.
- 7.2.8State that salts form in neutralisation.
- 7.2.9Sketch pH titration curves for strong and weak acids with strong and weak alkalis.
- 7.2.10Select suitable indicators for acid-alkali titrations from given data.
Lessons
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Brønsted-Lowry acids and bases
40 min
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pH titration curves and indicators
45 min
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Sample question
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