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16-04-2024
Chemistry

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2.278 x 10‐⁴ mol of an unidentified gaseous substance effuses through a tiny hole in 95.70 s. Under identical conditions, 1.738 x 10-⁴ mol of argon gas takes 81.60 s to effuse. What is the molar mass of the unidentified substance? (Rate of effusion = moles of gas divided by time)

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