Describe how crystals of copper sulphate are prepared.
Answer:
- Take a cupful of water in a beaker and add a few drops of dilute sulphuric acid.
- Heat the water.
- When it starts boiling, add copper sulphate powder slowly while stirring continuously.
- Continue adding copper sulphate powder till no more powder can be dissolved.
- Filter the solution.
- Allow it to cool. Do not disturb the solution when it is cooling.
- Crystals of copper sulphate will be seen at the bottom of the beaker.