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10.4 The Haber process and the use of NPK fertilisers

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Question 4

A process engineer uses a particle model to plan the feed into a reactor that makes ammonium sulfate fertiliser from ammonia and sulfuric acid.

The formulae of the substances are:

  • ammonia, NH3\text{NH}_3NH3​
  • sulfuric acid, H2SO4\text{H}_2\text{SO}_4H2​SO4​
  • ammonium sulfate, (NH4)2SO4\text{(NH}_4\text{)}_2\text{SO}_4(NH4​)2​SO4​

The table shows the numbers of reactant molecules mixed in the model.

ReactantNumber of molecules
Ammonia20
Sulfuric acid12
a.

Give the balanced equation for the reaction.

[1]
b.

Explain which reactant would be left over.

[2]
Markscheme

10.4 The Haber process and the use of NPK fertilisers Questions

  1. GCSE
  2. /Chemistry
  3. /10.4 The Haber process and the use of NPK fertilisers

71 exam-style questions on AQA GCSE Chemistry 10.4 The Haber process and the use of NPK fertilisers, covering 10.4.1a The Haber process, 10.4.1b Equilibrium and rate in the Haber process, and 10.4.2 Production and uses of NPK fertilisers. Each one has a worked solution and a mark scheme showing where the marks go.

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