1.

How many hydrogen bonded water molecules are associated in CuSO_4. 5H_2O?

Answer»

SOLUTION : Only one WATER molecule, which is outside the COORDINATION sphere, is hydrogen BONDED with sulphate ion. The other four MOLECULES of water are coordinated with copper cation.
`CuSO_4.5H_2O-= [ Cu(H_2O)_4]SO_4. H_2O`


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