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3.2 Use of amount of substance in relation to masses of pure substances

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Question 7
H

Ammonia is produced in the Haber process.

N2+3H2→2NH3\text{N}_2 + 3\text{H}_2 \rightarrow 2\text{NH}_3N2​+3H2​→2NH3​

Relative atomic masses (ArA_rAr​): H=1\text{H} = 1H=1, N=14\text{N} = 14N=14

a.

Calculate the mass of hydrogen that reacts completely with 28 g of nitrogen.

[3]
b.

Calculate the maximum mass of ammonia that could be produced from 28 g of nitrogen.

[2]
Markscheme

3.2 Use of amount of substance in relation to masses of pure substances Questions

  1. GCSE
  2. /Chemistry
  3. /3.2 Use of amount of substance in relation to masses of pure substances

40 exam-style questions on AQA GCSE Chemistry 3.2 Use of amount of substance in relation to masses of pure substances, covering 3.2.1 Moles, 3.2.2 Amounts of substances in equations, 3.2.3 Using moles to balance equations, 3.2.4 Limiting reactants, 3.2.5a Concentration of solutions, and 3.2.5b Relating mass, volume and concentration. Each one has a worked solution and a mark scheme showing where the marks go.

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