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K. In CuSO,5H,O the percentage of wateris ......(Cu = 63.5, S = 32, 0 = 16, H= 1)b. 36 %d. 72 %nrnnerties of aa. 10 %c. 60%System​

Answer»

Molar mass CF CuSO₄.5H₂O = [64 + 32 + (16 x 4)+ 5 (2 x 1 + 16)] = 250  

Mass of water of crystallisation = 5 ( 2 x 1 + 16) = 90

% of water of crystallisation = \frac{90}{250} \times100 = 36%

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