18.A solution is prepared by dissolving 8.00 g of glycerin (C3H8O3) in 201 g of ethanol The freezing point of the solution is ________°C. The freezing point of pure ethanol is at 1 atm. The molal-freezing-point-depression constant (Kf) for ethanol is The molar masses of glycerin and of ethanol are 92.1 g/mol and 46.1 g/mol, respectively.
A solution is prepared by dissolving 8.00 g of glycerin (C3H8O3) in 201 g of ethanol The freezing point of the solution is ________°C. The freezing point of pure ethanol is at 1 atm. The molal-freezing-point-depression constant (Kf) for ethanol is The molar masses of glycerin and of ethanol are 92.1 g/mol and 46.1 g/mol, respectively.
-115.5
-113.7
-122.2
0.860
-107.0
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