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5 Jun 2019
A) The freezing point of ethanol ( C2H5OH) is -114.6 °C. The molalfreezing point depression constant for ethanol is 2.00 °C/m. Whatis the freezing point (°C) of a solution prepared by dissolving50.0 g of glycerin( C3H8O3) a nonelectrolyte) in 200 g ofethanol?
B)) An aqueous solution of a soluble compound (a nonelectrolyte) isprepared by dissolving 33.2 g of the compound in sufficient waterto form 250 mL of solution. The solution has an osmotic pressure of1.2 atm at 25°C. What is the molar mass (g/mL) of the compound?
A) The freezing point of ethanol ( C2H5OH) is -114.6 °C. The molalfreezing point depression constant for ethanol is 2.00 °C/m. Whatis the freezing point (°C) of a solution prepared by dissolving50.0 g of glycerin( C3H8O3) a nonelectrolyte) in 200 g ofethanol?
B)) An aqueous solution of a soluble compound (a nonelectrolyte) isprepared by dissolving 33.2 g of the compound in sufficient waterto form 250 mL of solution. The solution has an osmotic pressure of1.2 atm at 25°C. What is the molar mass (g/mL) of the compound?
Hubert KochLv2
7 Jun 2019
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