November 30, 2015

Homework Help: P. Chemistry

Posted by Tommy on Sunday, March 7, 2010 at 10:53pm.

Can anyone direct me on how to solve this problem? All of the variables are makin my head spin--not sure how to organize them. If you can give equations to use that would help.Thnx!

1 L of an impure water solution has a freezing point of -11 C. Which of the following is the
best estimate of the vapor pressure of the solution at 25 C? Assume the vapor pressure of pure
water at 25oC = 23.76 atm, kF = 2 (K kg)/mol, and that water is 55 mol/L. Assume the density of
water is 1 g/mL.

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