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6 November, 17:16

How many moles of gas are required to exert 15.4 atm of pressure in a 2.92 L container at 32.0°C

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  1. 6 November, 19:24
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    1.8 moles

    Explanation:

    Number of moles = ?

    Pressure = 15.4 atm

    Volume = 2.92L

    Temperature = 32°C = (32 + 273.15) K = 305.15K

    From ideal gas equation,

    PV = nRT

    P = pressure of the ideal gas

    V = volume in which the gas occupies

    n = number of moles

    R = ideal gas constant = 0.082J/mol. K

    T = temperature of the gas

    PV = nRT

    n = PV / RT

    n = (15.4 * 2.92) / (0.082 * 305.15)

    n = (44.968 / 25.0223)

    n = 1.797 moles = 1.8 moles

    Number of moles of the gas is 1.8 moles
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