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On evaporation to dryness, 3503 of saturated solution of salt Z gave 55.5g of salt….

On evaporation to dryness, 350³ of saturated solution of salt Z gave 55.5g of salt. What is the solubility of the salt? [Z = 101]

A.
1.57 moldm^-3
B.
3.14 moldm^-3
C.
6.28 moldm^-3
D.
12.56 moldm^-3

Correct Answer: Option A

Explanation

Saturated solution = 350³
mass of salt Z in saturated solution = 55.5g
Number of moles of salt = (frac{55.5}{101}) = 0.55mole
350³ of solution contains 0.55mole
1000cm³ will contain (frac{1000 times 0.55}{350}) = 1.57mol/dm³