chem
posted by Tom .
Two identical ballons are filled, one w/ argon the other w/ oxygen gas at the same temp. If the oxygen ballon leaks at the rate of 64 mL per hour, how many hours will it take the argon ballon to lose 195mL of argon gas?
formula:
rate 1/rate 2=square root of m1/m2

You have posted the wrong formula.
Its r1/r2 = sqrt(M2/M1).
Let me know if that doesn't do it for you.