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8 October, 13:13

2) A 250.0 mL sample of nitrogen is collected at 25°C and an atmospheric pressure of 766.4 torr. What volume of

nitrogen would this be at STP?

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  1. 8 October, 15:04
    0
    Answer: 231mL

    Explanation:

    P1 = 766.4 torr

    V1 = 250mL

    T1 = 25°C = 25 + 273 = 298K

    P2 = stp = 760torr

    T2 = stp = 273K

    V2 = ?

    P1V1/T1 = P2V2/T2

    (766.4x250) / 298 = (760xV2) / 273

    298x760xV2 = 766.4x250x273

    V2 = (766.4x250x273) / (298x760)

    V2 = 231mL
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