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Ammonium phosphate and ammonium sulfate are made from ammonia - Edexcel - GCSE Chemistry Combined Science - Question 2 - 2016 - Paper 1
Question 2
Ammonium phosphate and ammonium sulfate are made from ammonia. These compounds can be used as fertilisers. (a) Ammonia solution is alkaline. Which of the followin... show full transcript
Worked Solution & Example Answer:Ammonium phosphate and ammonium sulfate are made from ammonia - Edexcel - GCSE Chemistry Combined Science - Question 2 - 2016 - Paper 1
Step 1
Step 2
Give one advantage of using fertilisers made from ammonia rather than using manure.
Answer
One advantage of using fertilisers made from ammonia is that they often provide a more concentrated source of nutrients, allowing for more efficient fertilisation and easier application than the bulkier manure.
Step 3
In the first step, 25 cm³ of dilute phosphoric acid was placed in a beaker. Give the name of a piece of apparatus that could be used to measure out the 25 cm³ dilute phosphoric acid.
Answer
A suitable piece of apparatus to measure out 25 cm³ of dilute phosphoric acid is a graduated pipette.
Step 4
Step 5
Describe how pure, dry crystals of ammonium phosphate are obtained from the ammonium phosphate solution.
Answer
To obtain pure, dry crystals of ammonium phosphate, first heat the solution to allow water to evaporate. After evaporation, filter the solution to collect the dry crystals formed.