Worksheet: Vapor Pressures of Solutions

In this worksheet, we will practice using Raoult’s law to calculate the lowering of solvent vapor pressure by nonvolatile solutes.


A solution contains 6.00 g of urea, CO(NH)22, a nonvolatile compound, dissolved in 0.100 kg of water at 25C. If the vapor pressure of pure water at 25C is 23.7 Torr, what is the vapor pressure of the solution to three significant figures?

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