Gas A effuses 0.68 times as fast as Gas B. If the molar mass of Gas B is 17 g/mol, what is the molar mass of Gas A?
1 Answer
Jul 10, 2017
Explanation:
We can use Graham's law of effusion to solve this:
where
-
rArB is a number representing the ratio of effusion rates of gas A to gas B, in this case0.68:1=0.68 -
MA andM2 are the molar masses of gases A and B, respectively.
We know the molar mass of gas B is
rounded to