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23 April, 21:09

How many liters of space will 7.80 moles of methane gas (CH4) occupy at STP

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  1. 23 April, 21:30
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    V CH4 (g) = 190.6 L

    Explanation:

    assuming ideal gas:

    PV = RTn

    ∴ STP: T = 298 K and P = 1 atm

    ∴ R = 0.082 atm. L/K. mol

    ∴ moles (n) = 7.80 mol CH4 (g)

    ∴ Volume CH4 (g) = ?

    ⇒ V = RTn/P

    ⇒ V CH4 (g) = ((0.082 atm. L/K. mol) * (298 K) * (7.80 mol)) / (1 atm)

    ⇒ V CH4 (g) = 190.6 L
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