Calculate the pressure of helium gas:
PHe = 226 mmHg
Calculate the pressure in atm:
1 atm = 760 mmHg
PHe = 0.2974 atm
Ideal Gas Law:
A gas mixture with a total pressure of 760 mmHg contains each of the following gases at the indicated partial pressures: 126 mmHg CO2, 220 mmHg Ar, and 188 mmHg O2. The mixture also contains helium gas.
What mass of helium gas is present in a 12.6-L sample of this mixture at 274 K ?
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