The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H6O2) must be mixed in 100.0 g of water to lower the freezing point of the solution to -7.9°C?

If a 24 g sample of a nonelectrolyte is dissolved in 156 g of water, the resulting solution will freeze at –1.13°C. What is the molar mass of the nonelectrolyte? (Kf for water is 1.86 °C/m.)

The freezing point of an aqueous solution containing 35 g of an nonelectrolyte in 150 mL water is -10.4ï°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.     121 g/mol     2.78 g/mol     34.4 g/mol     41.73 g/mol     53.8 g/mol

Determine the freezing point depression of a solution that contains 30.7 g glycerin (C 3H 8O 3, molar mass = 92.09 g/mol) in 376 mL of water. Some possibly useful constants for water are K f = 1.86°C/ m and K b = 0.512°C/ m.        2.18°C        0.654°C        3.33°C        1.65°C        0.887°C

What is the freezing point of an aqueous solution that boils at 105.0°C?

It takes 6.86 kg of ethylene glycol (antifreeze) to decrease the freezing point of 6.50 kg of water to -31.7ºC. How much NaCl would it take to decrease the freezing point of 6.50 kg of water to -31.7ºC?

What volume of ethylene glycol (C2H6O2), a nonelectolyte, must be added to 14.0 L water to produce an antifreeze solution with a freezing point of –25.0°C? (The density of ethylene glycol is 1.11 g/cm3, and the density of water is 1.00 g/cm3) .

When 15.0 g of an organic compound known to be 54.53% C, 9.2% H, and 36.32% O by mass is dissolved in 721.4 g of water, the freezing point is -0.293 °C. The normal freezing point of water is 0 °C. What is the molecular formula for the organic compound? Assume that the organic compound is a molecular solid and does not ionize in water. Kf values for various solvents are given in the colligative constants table. molecular formula: CHO