How can we separate copper sulphate from an impure sample?
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Take some impure sample of copper sulphate in a China dish. Dissolve it in minimum amount of water. Filter the impurities out . Evaporate water from the copper sulphate solution so as to get a saturated solution .
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Evaporate water form the copper sulphate solution so as to get a saturated solution. Cover the solution with a filter paper and leave it undisturbed at room temperature to cool slowly for a day .You will be obtained the crystal of copper sulphate in the china dish. The crystallisation method is used to purify soild.
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