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10.4 The Haber process and the use of NPK fertilisers

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Question 3

A crop requires 42.0 kg of nitrogen. The only fertiliser used is ammonium nitrate, NH4NO3\text{NH}_4\text{NO}_3NH4​NO3​. Relative atomic masses: H=1\text{H} = 1H=1, N=14\text{N} = 14N=14, O=16\text{O} = 16O=16.

Calculate the mass of ammonium nitrate needed to supply 42.0 kg of nitrogen. Give your answer to 3 significant figures.

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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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