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10.4 The Haber process and the use of NPK fertilisers

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Question 18
H

The equation for the reaction in the Haber process is N2+3H2→2NH3\text{N}_2 + 3\text{H}_2 \rightarrow 2\text{NH}_3N2​+3H2​→2NH3​. The relative formula masses are N2=28\text{N}_2 = 28N2​=28, H2=2\text{H}_2 = 2H2​=2 and NH3=17\text{NH}_3 = 17NH3​=17. What is the atom economy of this reaction for making ammonia?

[1]
A

50 %50\ \%50 %

B

68 %68\ \%68 %

C

85 %85\ \%85 %

D

100 %100\ \%100 %

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

39 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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