Homework Help: Chemistry

Posted by Elizabeth L. on Wednesday, April 11, 2012 at 4:05am.

At a certain temperature the vapor pressure of pure benzene is measured to be 322. torr . Suppose a solution is prepared by mixing 138.g of benzene and 91.2g of heptane .

Calculate the partial pressure of benzene vapor above this solution. 3 sig figs!

Steps/equations are appreciated...!

Chemistry - DrBob222, Wednesday, April 11, 2012 at 12:33pm
n benzene = grams/molar mass
n heptane = grams/molar mass
Xbenzene = n benzene/totalmols

pbenzene = Xbenzene*P^o_benzene

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