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10 June, 01:37

Find the mass in grams of 4.48 liters of F2 gas at STP

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  1. 10 June, 01:39
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    Mass = 7.6 g

    Explanation:

    Given dа ta:

    Volume of F₂ gas = 4.48 L

    Standard Temperature = 273 K

    Standard Pressure = 1 atm

    Mass of gas = ?

    Solution:

    PV = nRT

    P = pressure

    V = Volume

    n = number of moles

    R = general gas constant

    T = temperature

    n = PV/RT

    n = 1 atm*4.48 L / 0.0821 atm. L / mol. K * 273 K

    n = 4.48 atm. L / 22.4 atm. L/mol

    n = 0.2 mol

    Mass of F₂ gas:

    Mass = number of moles * molar mass

    Mass = 0.2 mol * 38 g/mol

    Mass = 7.6 g
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