Edexcel IGCSE Chemistry · Spec 2.39-2.42
Preparing Soluble Salts
How to prepare a soluble salt from an acid and an insoluble base.
Chemistry revision video
Preparing Soluble Salts
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Spec 2.39-2.42
What you need to know
- Describe the insoluble base method
- Carry out the steps in order
- Apply it to make copper sulfate
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Quick check
Answer each question before opening the answer.
How do you prepare a soluble salt from an acid and an insoluble base?
Add excess base to the warm acid, filter off the unreacted base, then crystallise the solution.
Why is excess base added?
To make sure all of the acid has reacted.
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