Pure `O_(2)` diffuses through an aperture in 224 second, whereas mixture of `O_(2)` and another gas containing 80% `O_(2)` diffuses from the same in 234 second. The molecular mass of gas will be:

Some moles of O_(2) diffuse through a small opening in 18 second. Same number of moles of an unknown gas diffuse through the same opening in 45 second. Molecular mass of the unknown gas is

20 dm^3 of an unknown gas diffuse through a porous partition in 60 s, whereas 14.1 dm^3 of O_2 under similar conditions diffuse in 30 s. What is the molecular mass of the gas ?

20L of SO_(2) diffuse through a porous partition in 60 seconds. Volume of O_(2) diffuse under similar conditions in 30 secodns will be:

Under the same conditions, a gas diffuses sqrt(2) times as fast as SO_(2) gas. Find the molecular mass of the gas.

A gaseous mixture of O_(2) and an unknown gas 'X' containing 20 mole % of X diffused through a small hole in 245 seconds while O_(2) takes 220 seconds to diffuse through the same hole under similar conditions. Calculate the molecular mass of X.

20 L of SO_(2) diffuses through a porous partition in 60 sec. Volume of O_(2) diffuse under similar condition in 30 second will be

At STP 16 mL of O_(2) diffused through a porous partition in t seconds. What volume of CO_(2) will diffuse in the same time and under the same conditions?

At STP 16 mL of O_(2) diffused through a porous partition in t seconds. What volume of CO_(2) will diffuse in the same time and under the same conditions?

240cc of SO_2 gas diffused through a porous membrane in 20 minutes. Under similar conditions, 720 cc of another gas diffused in 30 minutes. Find the molecular mass of the gas.