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14 April, 13:19

Calculate the molecular weight of freon-12, if 122.70 liters of its vapor at 200.00

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  1. 14 April, 16:43
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    PV = nRT

    Where:

    P = pressure in atm = 700/760 = 0.9211atm

    V = volume = 8.29L

    R = gas constant, 0.08206 atm-L/mol-K

    T = temperature in Kelvin = 200 + 273 = 473

    n = numbers of moles = Mass/molar mass

    mass of the compound = 30.5

    we can rewrite the equation above as

    PV = (Mass) / (Molar mass) * RT
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