Question

Explain with an activity to make crystals of copper sulphate

Answer 1

Answer:

heat few crystals of copper sulphate in a dry boiling tube. ... then, on adding few drops of water to the heated copper sulphate, the blue colour of copper sulphate reappears. the water of crystallisation is the fixed number of water molecules present in one formula unit of salt

Answer 2

➢ 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.