The solubility in mol dm/-3 of 20g of CuSO4 dissolved in 100g of water at…

The solubility in mol dm/-3 of 20g of CuSO4 dissolved in 100g of water at…

A.
0.13
B.
0.25
C.
1.25
D.
2.00

Correct Answer: Option C
Explanation
Relative molecular mass of CuSO4 = 64 + 32 + 16 * 4 = 160
The number of moles of CUSO4 = reacting mass/molecular mass = 20/180 = 0.125
100g of water dissolved 0.125m of CuSO4
100g of water will dissolve (0.125 * 1000)/100 = 1.25mol dm3

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