In industry, ammonia gas, NH₃, is manufactured from nitrogen gas, N₂, and hydrogen gas, H₂ - Edexcel - GCSE Chemistry - Question 4 - 2016 - Paper 1
Question 4
In industry, ammonia gas, NH₃, is manufactured from nitrogen gas, N₂, and hydrogen gas, H₂.
(i) Give the name of the industrial process used to manufacture ammonia.... show full transcript
Worked Solution & Example Answer:In industry, ammonia gas, NH₃, is manufactured from nitrogen gas, N₂, and hydrogen gas, H₂ - Edexcel - GCSE Chemistry - Question 4 - 2016 - Paper 1
Step 1
(i) Give the name of the industrial process used to manufacture ammonia.
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Answer
The industrial process used to manufacture ammonia is known as the Haber process.
Step 2
(ii) State the main source of the nitrogen and of the hydrogen used in this process.
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Answer
The main source of nitrogen is the air or atmosphere, while the hydrogen is primarily sourced from natural gas or methane (CH₄).
Step 3
(iii) Write the balanced equation for the reaction between nitrogen and hydrogen to produce ammonia.
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Answer
The balanced equation for the reaction is:
N2+3H2→2NH3
Step 4
(iv) State why the following hazard symbol is seen on a bottle of concentrated ammonia solution.
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The hazard symbol indicates that ammonia is corrosive, which means it can cause damage to skin or eyes upon contact.
Step 5
(b) Use the formula to describe the atoms combined in one molecule of ammonia.
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A molecule of ammonia (NH₃) consists of one nitrogen atom (N) and three hydrogen atoms (H).
Step 6
(c) Explain why ammonium compounds are important in agriculture.
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Answer
Ammonium compounds are significant in agriculture as they are used as fertilizers, which promote plant growth and increase crop yields.
