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 180^o is
[Cu = 64, S = 32, O =16]

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