(adsbygoogle = window.adsbygoogle || []).push({}); The Problem

A sample of N2 gas is contaminated with a gas. It is found that that contaminant effuses at 0.25 times the rate of N2. What is the contaminating gas?

Choices are: He, Cl2, H2, Kr, Rn

2. Relevant equations

Rate x/Rate N2 = (square root of:) Mass N2/Mass x

Where Rate x =0.25 Rate N2

3. The attempt at a solution

By plugging in the values I get a mass of x that is over 400, and none of the above choices weight that much

Another option I tried is using just Nitrogen instead of N2 which gives me Mass x = 224 which comes close to the 222 that I got. But I have a feeling that it's wrong and not sure how to justify my answer

Any help would be greatly appreciated

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# Homework Help: Gas Effusion Rate

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