Lesson: Cryoscopy and Ebullioscopy

In this lesson, we will learn how to calculate the molar mass of a solute based on its effect on the melting or boiling point of the solvent.

Worksheet: 8 Questions

Q1:

Why are soaps useful for cleaning?

Q2:

A sample of an organic compound (a nonelectrolyte) weighing 1.30 g lowered the freezing point of 10.0 g of benzene by . What is the molar mass of the compound?

Q3:

A 12.0 g sample of a nonelectrolyte is dissolved in 80.0 g of water. The solution freezes at . What is the molar mass of this solute? The freezing point depression constant of water is .

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