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4.2 Reactions of acids

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Question 22

A laboratory has two aqueous acid solutions, P and Q. One solution contains a strong acid and the other contains a weak acid.

The solutions have the same concentration of dissolved acid.

SolutionConcentration of dissolved acid in mol/dm³pH
P0.1001
Q0.1003
a.

Explain which solution contains the strong acid.

[2]
b.

Calculate how many times greater the hydrogen ion concentration is in solution P than in solution Q.

[1]
Markscheme

4.2 Reactions of acids Questions

  1. GCSE
  2. /Chemistry
  3. /4.2 Reactions of acids

88 exam-style questions on AQA GCSE Chemistry 4.2 Reactions of acids, covering 4.2.1a Reactions of acids with metals, 4.2.1b Redox in acid-metal reactions, 4.2.2 Neutralisation of acids and salt production, 4.2.3 Soluble salts, 4.2.4 The pH scale and neutralisation, 4.2.5a Titrations, 4.2.5b Calculating quantities in titrations, and 4.2.6 Strong and weak acids. Each one has a worked solution and a mark scheme showing where the marks go.

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