Chemistry help please, teacher hasn't taught us this yet!
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Chemistry help please, teacher hasn't taught us this yet!

[From: ] [author: ] [Date: 11-05-16] [Hit: ]
35g/mole-2.4 x 146 = 301.301.56 divide by 6 molecular = 50.then you times that by 69 because of pressure, divide by 72 of atmospherem and you ge 67.......
The rate of effusion of unknown gas X is found
to be about 2.4 times that of SF6 gas (MW
= 146 g/mol) at the same conditions of temperature and pressure. What is the molecular
weight of gas X?
Answer in units of g/mol.

-
this is called the root mean square
rate gas1 / rate gas 2 = sqrt(molar mass gas2 / molar mass gas 2)
X/SF6 = 2.4
2.4 = sqrt(146 / X)
2.4^2 = 146/X
146 / 5.76 = X = 25.35g/mole

-
2.4 x 146 = 301.56

301.56 divide by 6 molecular = 50.34

then you times that by 69 because of pressure, divide by 72 of atmospherem and you ge 67.42
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