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18 November, 20:17

How many moles of air are there in a 3 L container at 1 atm pressure and 293

K? Use PV = nRT.

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Answers (1)
  1. 18 November, 20:26
    0
    Moles of air 0.1245 mol.

    Explanation:

    Given dа ta:

    Pressure = 1 atm

    Temperature = 293 K

    Volume = 3 L

    Number of moles = ?

    Solution:

    PV = nRT

    R = general gas constant = 0.0821 dm³ atm. K⁻¹. mol⁻¹

    Now we will put the values in equation

    PV = nRT

    n = PV / RT

    n = 1 atm. 3 L / 0.0821 dm³ atm. K⁻¹. mol⁻¹. 293 K

    n = 3 / 24.1 dm³ atm. mol⁻¹

    n = 0.1245 mol
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