how crystal of copper sulphate are prepared.
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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. Look at the solution after sometime
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➢ 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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