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The freezing point of pure ethanol is -114.6 degree Celsius at 1 atm. The molal freezing point depression constant (Kf) for ethanol is 1.99 degree C/m. What is the freezing point (degree Celsius) of the solution prepared by dissolving 7.00 g of glycerin, C3H8O3 in 291 g ethanol, C2H5OH ( MM= 46.1 g/ mol)