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%
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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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