Gaseous State

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Ques. Pure O₂ diffuses through an aperture in 224 seconds. whereas a mixture of O₂ and another gas containing 80 % O₂ diffuses from the same in 234 seconds.
What is the molecular weight of the gas?

#Chemistry #Physical Chemistry

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Shubhodip ·2011-06-12 10:23:31

Proceed by the concept of effective molecular mass.

molecular mass = Weightnumber of moles

So assume that the molecular mass of the gas is M. So the effective molecular mass of the mixture will be = 2M + 8*3210

Now use grahams law. t₂t₁ = âˆšM_O₂âˆšM_eff

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Gaseous State

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