At 27∘C, hydrogen is leaked through a tiny hole into a vessel for 20 minutes. Another unknown gas at the same temperature and pressure leaked through the same hole for 20 minute. After the effusion of the gases the mixture exerts a pressure of 9 atm. The hydrogen content of the mixture is 0.7 mole. If the volume of the container is 3 L, what is the molecular mass of the unknown gas (in g)?

At 27∘C, hydrogen is leaked through a tiny hole into a vessel for 2

1.	At 27∘C, hydrogen is leaked through a tiny hole into a vessel for 20 minutes. Another unknown gas at the same temperature and pressure leaked through the same hole for 20 minute. After the effusion of the gases the mixture exerts a pressure of 9 atm. The hydrogen content of the mixture is 0.7 mole. If the volume of the container is 3 L, what is the molecular mass of the unknown gas (in g)?
Answer» At $27^{\circ} C$ , hydrogen is leaked through a tiny hole into a vessel for 20 minutes. Another unknown gas at the same temperature and pressure leaked through the same hole for 20 minute. After the effusion of the gases the mixture exerts a pressure of 9 atm. The hydrogen content of the mixture is 0.7 mole. If the volume of the container is 3 L, what is the molecular mass of the unknown gas (in g)?