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Solution: Glycerol (a non-electrolyte that can be used as antifreeze in a car radiator) has a density of 1.261 g/mL and a molecular weight of 92 g. If 100 mL are mixed with 1 kG of water. What is good estimate of the temperature at which this solution will freeze? Kf = 1.861°C/molality. 1. -12.4°C 2. -0.23°C 3. 0.0°C 4. -4.8°C 5. -2.6°C

Problem

Glycerol (a non-electrolyte that can be used as antifreeze in a car radiator) has a density of 1.261 g/mL and a molecular weight of 92 g. If 100 mL are mixed with 1 kG of water. What is good estimate of the temperature at which this solution will freeze? Kf = 1.861°C/molality.

1. -12.4°C

2. -0.23°C

3. 0.0°C

4. -4.8°C

5. -2.6°C