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A gaseous mix of O2 and unknown gas X containing 20 mole % of X diffused through a small hole in 245 s while O2 takes 220 s to diffuse through same hole at the same condition. Find molecular mass of X.

A gaseous mix of O2 and unknown gas X containing 20 mole % of X diffused through a small hole in 245 s while O2 takes 220 s to diffuse through same hole at the same condition. Find molecular mass of X.

Grade:11

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