Q2) If 0.327 moles of H2S effuses in 462 seconds, how many seconds would it take for the same number of moles of CH3Cl to effuse?
rate H2S = 0.327/462
rate CH3Cl = 0.327/x
molar mass H2S = 34
molar mass CH3Cl = about 50.5 but check that.
rate H2S/rate CH3Cl = sqrt(molar mass CH3CL/molr mass H2S).
Solve for x.