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AP Chemistry

Equal masses of Ne and Ar are placed in a rigid, sealed container. If the total pressure in the container is 1.2 atm, what is the partial pressure of Ar?

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Elizabeth

  1. I would assume a number (any number for the masses). Ten(10) looks like a convenient number to choose.
    mols Ne = 10/atomic mass Ne = ?
    mols Ar = 10/atomic number Ar = ?
    total mols = mols Ne + mols Ar

    XAr = nAr/total mols
    XNa = nNe/atotal mols

    pAr = XAr x Ptotal
    pNe = XNe x Ptotal

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    DrBob222

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