Asked by Anonymous
The normal boiling point of methanol is 64.7°C. A solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 642.3 torr at 64.7°C. What is the mole fraction of methanol in this solution?
Answers
Answered by
DrBob222
The vapor pressure of pure methanol is 760 mm at this temperature.
psolution = Xmethanol*Po
642.3 = Xmethanol*760
Then Xmethanol + Xsolute = 1
Solve for Xsolute.
psolution = Xmethanol*Po
642.3 = Xmethanol*760
Then Xmethanol + Xsolute = 1
Solve for Xsolute.
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