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The percentage of water in CuSO(4).5H(2)...

The percentage of water in `CuSO_(4).5H_(2)O` is

A

36

B

12

C

25

D

60

Text Solution

Verified by Experts

The correct Answer is:
D
Molar mass of `Cu SO _(4). 5 H _(2)O = 249.5 g`
`[ Cu SO _(4) . 5 H _(2) O = 63.5 + 32 + 64 + 5 xx 18 = 249.5]`
`because ln 249. 5 g Cu SO _(4) . 5 H _(2) O`
Water = 90 g
`therefore ln 100 g Cu SO _(4). 5 H _(2) O,`
Water `= (90 xx 100)/(249.5) = 36%`
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