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Chemistry II

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what is the molar mass of a gaseous organic compound with a density of 3.38 g/L at 40oC and a pressure of 1.97 atm?
Ok, I am little confused because I am not sure of where to plug in the density and the atm?

  • Chemistry II -

    PM = (g/v)RT
    1.97*M = 3.38*0.08206*(273+40)
    Solve for M.

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