Skip to content

Course home

4.2 Reactions of acids

4.2 Reactions of acids

EasyMediumHard
123
Question 3

Ethanoic acid is a compound of carbon.

The formula of ethanoic acid is C2H4O2\text{C}_2\text{H}_4\text{O}_2C2​H4​O2​.

a.

Which ion is produced by ethanoic acid in aqueous solution?

  • H+\text{H}^+H+
  • OH−\text{OH}^-OH−
  • O2−\text{O}^{2-}O2−
[1]
b.

Calculate the relative formula mass (MrM_rMr​) of ethanoic acid (C2H4O2\text{C}_2\text{H}_4\text{O}_2C2​H4​O2​).

Relative atomic masses (ArA_rAr​): H=1\text{H} = 1H=1, C=12\text{C} = 12C=12, O=16\text{O} = 16O=16.

[2]
Markscheme

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.

Question bank