Question

In CuSO4.5H2O the percentage of water is ……. (Cu=63.5, S=32, O=16,

H=1)

a) 10% b) 36% c) 60% d) 72%​

Answer 1

Answer:

b)36%

Explanation:

Molecular wt=63.5+96+5(18)

=249.5

Wt of water=90

%Conposition=Wt of water/Molecular wt×100

=90/249.5×100

=36% Approx

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