Answer to Question #107713 in Chemistry for Angel

Question #107713

A sample of helium gas effuses at a rate of 12m/sec. Another gas effuses at a rate of 6.0m/sec. What is the molar mass of the unknown gas?

Expert's answer

R2/R1=√M1/M2

M1/(R2/R1)^2 = 4/(6/12)^2 =16 .

CH4

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