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Calculate the molar mass of the unknown gas

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Reference no: EM131344227

A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 125 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 30 s for 1.0 L of O2 gas to effuse.

Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0L; that is, rate and time are inversely proportional.)

Express your answer using two significant figures.

Reference no: EM131344227

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