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7 August, 06:50

A volume of 18.0 L contains a mixture of 0.250 mole N 2, 0.250 mole O 2, and an unknown quantity of He. The temperature of the mixture is 0 ∘ C, and the total pressure is 1.00 atm. How many grams of helium are present in the gas mixture?

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  1. 7 August, 10:06
    0
    1.213 grams Helium

    Known/Given

    -Total volume of sample=18L

    -Pressure=1atm

    -moles of N2=0.25

    -moles of O2=0.25

    -Temperature=0+273.14K (This is converting degrees Celsius into)
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