how will you seperate crystals of copper sulphate from their impure crystal.
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Answered by
1
Explanation:
1. Place some sulfuric acid in a beaker and warm it in a water bath
2. Add a spatula of copper(II) oxide powder to the acid and stir with a glass rod
3. Continue adding copper(II) oxide powder until it is in excess
4. Filter the mixture to remove the excess copper(II) oxide
5. Pour the filtrate (the copper(II) sulfate solution) into an evaporating basin
6. Heat the copper(II) sulfate solution to evaporate half the water
7. Pour the solution into an evaporating basin and leave to allow all the water to evaporate.
In this way, we can obtain crystals.
Answered by
5
➢ Take some impure copper sulphate in a china dish and dissolve in minimum amount of water.
➢ Filter the solution to remove impurities.
➢ Heat the copper sulphate solution on water bath.
➢ When small crystals form on glass rods, stop heating.
➢ Allow the saturated solution to cool slowly.
➢ Crystals of pure copper sulphate are formed.
➢ Separate the copper sulphate crystals by filtration and dry.
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