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4.2 Reactions of acids

4.2 Reactions of acids

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Question 30

A student investigated the reaction between dilute sulfuric acid and sodium hydroxide solution.

The student found that 18.5 cm318.5\text{ cm}^318.5 cm3 of 0.400 mol/dm30.400\text{ mol/dm}^30.400 mol/dm3 dilute sulfuric acid (H2SO4\text{H}_2\text{SO}_4H2​SO4​) completely reacted with 20.0 cm320.0\text{ cm}^320.0 cm3 of sodium hydroxide (NaOH\text{NaOH}NaOH) solution.

The equation for the reaction is:

2NaOH+H2SO4→Na2SO4+2H2O 2\text{NaOH} + \text{H}_2\text{SO}_4 \rightarrow \text{Na}_2\text{SO}_4 + 2\text{H}_2\text{O} 2NaOH+H2​SO4​→Na2​SO4​+2H2​O

Calculate the concentration of the sodium hydroxide solution in mol/dm3\text{mol/dm}^3mol/dm3 and in g/dm3\text{g/dm}^3g/dm3.

Relative atomic masses (ArA_rAr​): H=1\text{H} = 1H=1, O=16\text{O} = 16O=16, Na=23\text{Na} = 23Na=23

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4.2 Reactions of acids Questions

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

40 exam-style questions on AQA GCSE Chemistry 4.2 Reactions of acids, covering 4.2.1 Reactions of acids with metals, 4.2.2 Neutralisation of acids and salt production, 4.2.3 Soluble salts, 4.2.4 The pH scale and neutralisation, 4.2.5 Titrations, and 4.2.6 Strong and weak acids (HT only). Each one has a worked solution and a mark scheme showing where the marks go.

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