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March 25, 2017

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A mixture of 0.100 mol of N2 and 0.200 mol of O2 is collected over H2O at an atmospheric pressure of 750. mm Hg and a temperature of 22 ºC. What is the partial pressure (in mmHg) of O2 in this mixture? (Vapor pressure of water @ 22 ºC is 22 mm Hg)

  • Chemisrty - ,

    I would do this.
    Ptotal = PH2O + PN2 + PO2
    750 mm = 22 + pN2 + PO2.
    PN2 + PO2 = 728 mm
    Then you have 1/3 of 728 for N2 and 2/3 of 728 for O2.

  • Chemisrty - ,

    485

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