An unknown gas effuses at a rate that is 0.462 times that of nitrogen gas (at the same temperature). Calculate the molar mass of the unknown gas in g/mol.

Transcribed Image Text:

SORT You are given the ratio of effusion rates for the un- known gas and nitrogen and asked to find the molar mass of the unknown gas. STRATEGIZE The conceptual plan uses Graham's law of effusion. You are given the ratio of rates and you know the molar mass of the nitrogen. You can use Graham's law to determine the molar mass of the unknown gas. GIVEN: rate unk rateN₂ FIND: Munk CONCEPTUAL PLAN Rate unk, MN₂ RateN₂ rateA rateg = 0.462 Rate unk RateN₂ MB H MA RELATIONSHIPS USED = Munk MN₂ √ Munk (Graham's law)