A gas effuses from a container at 3 times the rate that Xenon(mass 131.29) does. Molar mass of Mystery Gas
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A gas effuses from a container at 3 times the rate that Xenon(mass 131.29) does. Molar mass of Mystery Gas

[From: ] [author: ] [Date: 12-01-10] [Hit: ]
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Graham's Law of effusiun (see Wikipedia) Rate is inversely proportional to the mass:
Rate
(mysteryG)/RateXe = √MassXe/Mass MG)
3 = √131.29/M(MG) MWt = 14.6 probably CH4 effusion is only approximate hence only one sig fig for rate
1
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