February 26, 2017

Homework Help: Chemistry

Posted by Daiyo on Friday, December 10, 2010 at 9:34am.

The normal boiling point of ethanol is 78.4°C. When 9.16 g of a soluble nonelectrolyte was dissolved in 100. g of ethanol, the vapor pressure of the solution at that temperature was 7.40 102 Torr.
(a) What are the mole fractions of ethanol and solute?

(b) What is the molar mass of the solute?

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