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6.3 Dynamic equilibria

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Question 17
H

A student reacts 3.40 g of ammonia with 14.7 g of sulfuric acid. 2NH3+H2SO4→(NH4)2SO4\mathrm{2NH_{3} + H_{2}SO_{4} \rightarrow (NH_{4})_{2}SO_{4}}2NH3​+H2​SO4​→(NH4​)2​SO4​

Relative formula masses: NH3\mathrm{NH_{3}}NH3​ = 17, H2SO4\mathrm{H_{2}SO_{4}}H2​SO4​ = 98, (NH4)2SO4\mathrm{(NH_{4})_{2}SO_{4}}(NH4​)2​SO4​ = 132

What is the maximum mass of ammonium sulfate that can form?

[1]
A

26.4 g26.4\,\mathrm{g}26.4g

B

19.8 g19.8\,\mathrm{g}19.8g

C

18.1 g18.1\,\mathrm{g}18.1g

D

13.2 g13.2\,\mathrm{g}13.2g

Markscheme

6.3 Dynamic equilibria Questions

  1. GCSE
  2. /Chemistry
  3. /6.3 Dynamic equilibria

43 exam-style questions on Edexcel GCSE Chemistry 6.3 Dynamic equilibria, covering 6.3.1 The Haber process as a reversible reaction, 6.3.2 Conditions and rate in industrial equilibria, and 6.3.3 Fertilisers and the preparation of ammonium sulfate. Each one has a worked solution and a mark scheme showing where the marks go.

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