Ammonium sulfate is used as a fertiliser. A student makes ammonium sulfate in the laboratory by reacting dilute ammonia solution with dilute sulfuric acid.
Write the word equation for the reaction.
Balance the equation for the reaction: ...... NH3(aq)+H2SO4(aq)→(NH4)2SO4(aq)\mathrm{NH_{3}(aq)} + \mathrm{H_{2}SO_{4}(aq)} \rightarrow \mathrm{(NH_{4})_{2}SO_{4}(aq)}NH3(aq)+H2SO4(aq)→(NH4)2SO4(aq)
The student uses a titration to find the volume of dilute sulfuric acid that exactly neutralises 25.0 cm3\mathrm{cm^{3}}cm3 of ammonia solution. Describe how the student should carry out the titration.
The student then mixes the same volumes of ammonia solution and sulfuric acid again, but without adding any indicator. Explain why.
Describe how the student can obtain dry crystals of ammonium sulfate from the solution.
Give two ways in which the industrial production of ammonium sulfate is different from this laboratory preparation.
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.