SolutionHard

Question

The amount of ice that will separate out on cooling a solution containing 50 g of ethylene glycol in 200 g water to - 9.30C is : (Kf′ = 1.86 K molality-1)

Options

A.38.71 g
B.38.71 mg
C.42 g
D.42 mg

Solution

9.3 = × 1000 × 1.86 × 1
w = 38.71 g.

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