Question

Cobalt chloride crystals contain water of crystallisation Their formula may be written as CoCL2.nH20. In an experiment to find the value of n a sample of the crystals was weighed and then gently heated to remove all Water The remaining powder was then weighed Mass of crystals: 47.6g Mass of remaining powder: 26.0g Calculate:


a) how many moles of water were combined in the crystals with one mole of Cobalt chloride.


b) what was the value of n in the formula CoCL2.nH20

Answer 1

Answer:

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Explanation: