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Chem 2

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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 12.5 g of biphenyl in 27.9 g of benzene?

  • Chem 2 -

    mole fraction benzene = XC6H6 = moles benzene/total mols.
    mols benzene = grams/molar mass
    mols biphenyl = grams/molar mass

    Then pC6H6 = XC6H6 * PoC6H6 = ?

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