The molar mass of an unknown gas was measured by an effusion experiment.It was found that the unknown gas effused at a rate of 3.7 $\times$ 10^-6 mol/hr,whereas nitrogen gas effused at a rate of 4.3 $\times$ 10^-6mol/hr.The molar mass of the gas is A) 26 g/mol. B) 33 g/mol. C) 21 g/mol. D) 30 g/mol. E) 38 g/mol.

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The Answer of The molar mass of an unknown gas was measured by an effusion experiment.It was found that the unknown gas effused at a rate of 3.7 $\times$ 10^-6 mol/hr,whereas nitrogen gas effused at a rate of 4.3 $\times$ 10^-6mol/hr.The molar mass of the gas is A) 26 g/mol. B) 33 g/mol. C) 21 g/mol. D) 30 g/mol. E) 38 g/mol.

The Molar Mass of an Unknown Gas Was Measured by an Effusion