Oxygen (O2) and chlorine (Cl2) have molar masses of 32.00 and 70.90 g mol–1, res

Question

Oxygen (O2) and chlorine (Cl2) have molar masses of 32.00 and 70.90 g mol–1, respectively. In one hour, 0.315 mol of chlorine effuses through a tiny hole. How much oxygen effuses through the same hole in the same amount of time? Oxygen (O2) and chlorine (Cl2) have molar masses of 32.00 and 70.90 g mol–1, respectively. In one hour, 0.315 mol of chlorine effuses through a tiny hole. How much oxygen effuses through the same hole in the same amount of time? Oxygen (O2) and chlorine (Cl2) have molar masses of 32.00 and 70.90 g mol–1, respectively. In one hour, 0.315 mol of chlorine effuses through a tiny hole. How much oxygen effuses through the same hole in the same amount of time?

Explanation / Answer

rate of effusion of a gas is inversely proportional to its molar mass

effusion(Cl2/O2) rate = sq.rt.(O2 molar mass/Cl2 molar mass)

0.315/O2 = sq.rt.(32/70.90)

effusion of O2 would be = 0.469 mol

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