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This question is about fertilisers - AQA - GCSE Chemistry - Question 5 - 2021 - Paper 2
Question 5
This question is about fertilisers. Some fertilisers are described as NPK fertilisers because they contain three elements needed for healthy plant growth. Which tw... show full transcript
Worked Solution & Example Answer:This question is about fertilisers - AQA - GCSE Chemistry - Question 5 - 2021 - Paper 2
Step 1
Which two compounds each contain two of these elements?
Answer
The two compounds that contain two of the three essential elements (Nitrogen, Phosphorus, and Potassium) for plant growth are:
- Ammonium phosphate: This compound contains both Nitrogen and Phosphorus.
- Potassium nitrate: This compound contains both Potassium and Nitrogen.
Step 2
Step 3
Step 4
Evaluate the two methods for producing a large mass of ammonium sulfate.
Answer
The industrial process involves continuous operation, handling larger quantities, and can produce a large mass of ammonium sulfate effectively. It also allows for better control over the reactions and conditions.
On the other hand, the laboratory process is more limited in scale, and while it can produce ammonium sulfate, it may not be efficient for large-scale production due to repeated cycles and smaller batch sizes. However, it is simpler and more feasible for limited quantities and educational purposes. Therefore, while the industrial method is more effective for large production, the laboratory process is beneficial for smaller, controlled experiments.