Calculate the volume of 10g of helium ( M= 4kg/kmol) at 25C and 600 mmHg

Question

Calculate the volume of 10g of helium ( M= 4kg/kmol) at 25C and 600 mmHg

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Huyền Thanh 3 years 2021-07-14T07:41:35+00:00 1 Answers 6 views 0

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  1. thachthao
    0
    2021-07-14T07:42:39+00:00
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    Answer:

    T=273+25=298 K

    n= m/M = 10/ 4 = 2.5

    R=0.08206 L.atm /mol/k

    760mmHg = 1 atm therefore

    600mmHg = X atm

    760 X = 600mmHg

    X = 600/760 = 0.789 atm

    P = 0.789 atm

    V= ?

    PV= nRT

    0.789 V = 2.5 × 0.08206 × 298

    V= 2.5 × 0.08206 ×298 / 0.789

    V= 77.48 L

    I hope I helped you ^_^

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