Colligative Properties

Practice Questions

GRE Subject Test: Chemistry › Colligative Properties

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1

Two moles of sodium chloride (NaCl) are added to 1kg of a mystery solvent. The addition of the NaCl caused an increase of 6K to the solvent's boiling point.

Based on this information, what is the boiling constant for the solvent?

2

Two moles of sodium chloride (NaCl) are added to 1kg of a mystery solvent. The addition of the NaCl caused an increase of 6K to the solvent's boiling point.

Based on this information, what is the boiling constant for the solvent?

3

What is the freezing point of a 2M solution of in water?

4

What is the freezing point of a 2M solution of in water?

5

What is the boiling point of a solution composed of three liters of water and 50 grams of sodium chloride?

The molar mass of sodium chloride is .

6

What is the boiling point of a solution composed of three liters of water and 50 grams of sodium chloride?

The molar mass of sodium chloride is .

7

How much sodium chloride has been added to four liters of water if the freezing point of the solution is ?

Sodium chloride has a molar mass of .

8

How much sodium chloride has been added to four liters of water if the freezing point of the solution is ?

Sodium chloride has a molar mass of .

9

At 25 degrees Celsius, methanol has a vapor pressure of 95mmHg, and toluene has a vapor pressure of 300mmHg.

What is the vapor pressure of a solution that is 30% methanol and 70% toluene?

Assume that the solution is ideal.

10

At 25 degrees Celsius, methanol has a vapor pressure of 95mmHg, and toluene has a vapor pressure of 300mmHg.

What is the vapor pressure of a solution that is 30% methanol and 70% toluene?

Assume that the solution is ideal.

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