A) 0.027
B) 0.036
C) 0.018
D) 0.009
Correct Answer: C
Solution :
Molality of solution = Mole of solute per kg of solvent So 1 m = 1 mole of solute per 1000 g of solvent Hence, moles of solute in 1 m aqueous solvent = 1 moles of solvent in 1 m aqueous solution \[=\frac{1000}{18}=55.55\] Mole fraction of solute in 1 m solution \[=\frac{1}{1+55.55}=\frac{1}{56.55}=0.0176\approx 0.018\]You need to login to perform this action.
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