time1 = 60 sec = H2
time2 = 240 sec(240*0.25 = 60) = unknown
rate H2 = 1L/60sec
rate unk = 1L/240 sec.
1/60/1/240 = sqrt(M2/2)
Solve for M2.
The time of 60 sec was just made up You may use any convenient time with the corresponding time for the unknown of 4x that.
what is the molar mass of the unknown gas that diffuses 0.250 times as fast as hydrogen gas under the same circumstances?
2 answers
What hapens you moving from left to right in a periodic table?
1 answer