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A sample of an unionown gas effuses in 11.2 min. An equal volume of H2 in the same apparatus under the same conditions effuses in

A sample of an unionown gas effuses in 11.2 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.42 min. What is the molar mass of the unknown gas? Round your answer to 3 significant figures

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