Chemistry, 18.07.2019 16:00 elitehairnerd1964

During an effusion experiment, a certain number of moles of an unknown gas passed through a tiny hole in 50 seconds. under the same conditions, the same number of moles of oxygen gas passed through the hole in 35 seconds. what is the molar mass of the unknown gas?

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During an effusion experiment, a certain number of moles of an unknown gas passed through a tiny hol...