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The molar mass of argon is 40 gmol. What is the molar mass of a gas if it effuses at 0.91 times the speed of argon gas?
Wiki User
∙ 7y ago
graham's law
(Rate 1 / rate 2) ^2 = MM2 / MM1
(Rate x / rate Ar) ^2 = MM Ar / MM x
(.907)^2 = 39.9481 / MMx
MMx = 39.9481 / 0.8226
Molar mass of unknown gas = 48.56 g / mole
Wiki User
∙ 13y ago
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