1 Required Practical: Making Salts

Question 1

Describe how to make pure, dry samples of named soluble salts.

Answer 1

1. Measure 20cm³ of acid into measuring cylinder and pour into beaker.
2. Heat the acid gently using a bunsen burner.
3. Add small quantities of insoluble substance in excess until reaction stops.
4. Filter solution using filter paper and funnel to remove excess substance.
5. Pour solution into evaporating basin.
6. Gently evaporate solution using water bath until crystals start to form.
7. Leave in a cool place for 24 hours.
8. Gently pat crystals dry using filter paper.