( argon 40 g/mol) Whats the molar mass of a gas if it effuses at 0.91 times the speed of argon gas
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( argon 40 g/mol) Whats the molar mass of a gas if it effuses at 0.91 times the speed of argon gas

[From: ] [author: ] [Date: 11-12-20] [Hit: ]
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the molar mass of argon is 40 g/mol. What is the molar mass of a gas if it effuses at 0.91 times the speed of argon gas?

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we use Grahame law to solve these problems

(rate1 / rate2 ) ^2 = MM2 / MM1

( rate X / rate Ar ) ^2 = MM Ar / MM X

.91 ^2 = MM Ar / MM X

MM X = 40 / . 8281 = 48.30 g/ mole
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