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Topic: Vapor pressure/ molar mass problem  (Read 4615 times)

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Offline lazyndnkid

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Vapor pressure/ molar mass problem
« on: February 05, 2008, 11:37:29 PM »
When 10.5 g of an unknown, non-volatile, non-electrolyte, X was dissolved in 100. g of water, the vapor pressure of the solvent decreased from 23.8 torr to 23.3 torr at 298 K. Calculate the molar mass of the solute, X.

any help?
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Offline Borek

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Re: Vapor pressure/ molar mass problem
« Reply #1 on: February 06, 2008, 02:59:30 AM »
How vapor pressure change is related to number of moles of solute?
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