4 (a) 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
4 (a) 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 ... show full transcript
Worked Solution & Example Answer:4 (a) 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
Give the name of the industrial process used to manufacture ammonia.
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Answer
The name of the industrial process used to manufacture ammonia is the Haber process.
Step 2
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. The main source of hydrogen can be obtained from natural gas or methane (CH₄).
Step 3
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 between nitrogen and hydrogen to produce ammonia is:
ightarrow 2NH₃$$
Step 4
State why the following hazard symbol is seen on a bottle of concentrated ammonia solution.
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Answer
The hazard symbol indicates that ammonia is corrosive and can cause damage or burns to skin.
Step 5
Use the formula to describe the atoms combined in one molecule of ammonia.
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Answer
A molecule of ammonia (NH₃) consists of one nitrogen atom and three hydrogen atoms.
Step 6
Explain why ammonium compounds are important in agriculture.
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Ammonium compounds are important in agriculture as they are used as fertilizers. They promote plant growth and increase crop yields.
