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help with mole and fraction of ethanol

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stosha164's picture
Joined: Feb 2007
help with mole and fraction of ethanol

i need help with this problem please..
at 63.5 degrees celcuis the vapor pressure of water is 175 torr and that of ethanol is 400 torr a solution is made by mixing equal masses of water and ethanol what is the mole fraction of ethanol and the solution.

xenahorse's picture
Joined: Sep 2005

btw, this belongs in the AP CHem section, not gen. disscussion. Do you have any I dea HOW to do this? Are you confused on what formula to use? Have you even tried doing this? Show some work first, don't just expect us to solve this for you. Just tell me what you've tried already, or got confused on, and I'd love to help ya:D

The hardest thing about riding horses is the ground
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Shadow's picture
Joined: Sep 2005


*runs away in terror*

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