MSS... 1 pts M 1 pls 2req A sample of CH4 gas is observed to effuse through a pourous barrier in 5.28 minutes. Under the same conditions, the same number of moles of an unknown gas requires 9.17 minutes to effuse through the same barrier. The molar mass of the unknown gas is g/mol. 1 pts 2roq Submit Answer Retry Entire Group 2 more group attempts remaining 1 pts 2req The rate of effusion of Oz gas through a porous barrier is observed to be 2.77 x 10-4 mol/h. Under the same conditions, the rate of effusion of CH, gas would be mol/h. 0 1 pts 2req Submit Answer Retry Entire Group 2 more group attempts remaining Miegram