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chemistry STP question?

At STP, a gas occupies 450 mL. What pressure is needed to store it in a 100mL container at 25 degress centrigrade ? I dont even get this question :(

but the answer in 497.6 KPa for sure :)

please and thank you

1 Answer

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  • 1 decade ago
    Favorite Answer

    STP = 1atmosphere and 273Kelvin

    V1*P1/T1 = V2*P2/T2

    Solve for P2

    (V1*P1*T2)/(T1*V2)

    (0.450L * 1atm * 273K) / ((25+273)K * 0.100L)

    = 4.12atm

    in KPa = 4.12atm * 101.325 = 417KPa

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