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Posted by on Wednesday, February 22, 2012 at 12:10am.

Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 18.9 g of biphenyl in 26.4 g of benzene?

  • Chemistry - , Wednesday, February 22, 2012 at 1:03am

    mols biphenyl = g/molar mass
    mols benzene = g/molar mass
    mol fraction benzene = Xbenzene = mols benzene/total mols.
    Then pbenzene = Xbenzene*Ponormal v.p.

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