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23 April, 05:28

How many moles of propane (C3H8) are in a 7.00-L tank at 20.0°C and 5.45 atm of pressure?

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  1. 23 April, 05:51
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    By the claperyron equation:

    T = 20.0ºC + 273.15 = > 293.15 K

    R = 0.082 atm

    Therefore:

    P x V = n x R x T

    5.45 x 7.00 = n x 0.082 x 293.15

    38.15 = n x 24.0383

    n = 38.15 / 24.0383

    n = 1.587 moles of C3H8
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