rate1/rate2 = sqrt(M2/M1)
The easy way to do rate is to assume a volume; for example, 1 L. Then rate 1 = 1L/11.1 min for H2, etc.
A sample of an unknown gas effuses in 11.1 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.02 min. What is the molar mass of the unknown gas?
1 answer