A Solution Is Prepared by Dissolving 2

question 48

Multiple Choice

A solution is prepared by dissolving 2.00 g of glycerin (C₃H₈O₃) in 201 g of ethanol (C₂H₅OH) . The freezing point of the solution is ________°C. The freezing point of pure ethanol is -114.6 °C at 1 atm. The molal-freezing-point-depression constant (K_f) for ethanol is 1.99 °C/m. The molar masses of glycerin and of ethanol are 92.1 g/mol and 46.1 g/mol, respectively.

• A)-116.6
• B)0.215
• C)-112.6
• D)-114.4
• E)-114.8

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