A solution is prepared by dissolving 21.0 g of glycerin (
) in 201 g of ethanol
The freezing point of the solution is ________°C. The freezing point of pure ethanol is
. The molal freezing point depression constant (
) for ethanol is
The molar masses of glycerin and of ethanol are 92.1 g mol-1 and 46.1 g mol-1, respectively.
A) -112.8
B) -116.4
C) 2.26
D) -112.3
E) -116.9
Correct Answer:
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