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24 November, 15:48

How many moles of Helium gas are in a balloon with a volume of 6.452 L at 99.7 kPa

and 297 Kelvin

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  1. 24 November, 15:50
    0
    n = 0.26 mol.

    Explanation:

    Given,

    Pressure, P = 99.7 kPa = 1 atm

    where 101.325 kPa = 1 atm

    P = 0.984 atm

    Temperature, T = 297 K

    Volume = 6.452 L

    Now, using ideal gas equation

    PV = n RT

    0.984 x 6.452 = n x 0.08206 x 297

    n = 0.26 mol.
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