Answer to Question #113964 in General Chemistry for Abby

Question

A given volume of a gas G diffuses through amemebrane in 10s. Under the same condition of temperature and pressure, an equal volume of oxygen diffuses through he same membrane in 12.5 seconds. Determine the molecular mass of gas G

Answer 1

R1/R2=√M2/M1.

M2=(R1/R2)^2 x M1= (12.5/10)^2 x 32 = 50.