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A gas mixture, has a total pressure of 300. Torr and consists of equal masses of Ne and Ar. What is the partial pressure of Ar, in Torr?

  • chemistry -

    I would make up a convenient number (100 for example) and say the gas mixture consists of 100 g Ne and 100 g Ar.
    Calculate moles of each.
    Calculate total moles.
    Calculate mole fraction of each.
    Then PAr = mole fraction Ar x 300
    PNe = moles fraction Ne x 300 = ??
    Post your work if you get stuck.

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