Problem: A gas mixture contains each of the following gases at the indicated partial pressures: N2, 221 torr ; O2, 131 torr ; and He, 131 torr .What mass of each gas is present in a 1.30 -L sample of this mixture at 25.0 oC?

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PV=nRTn=mM(PV=mMRT)(M)PVMRT=mRTRTm=PVMRT

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Problem Details

A gas mixture contains each of the following gases at the indicated partial pressures: N2, 221 torr ; O2, 131 torr ; and He, 131 torr .

What mass of each gas is present in a 1.30 -L sample of this mixture at 25.0 oC?

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