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Effusion

Q. Which gas effuses faster, He or Ar, and how much faster does it effuse? (a) He effuses 9.98 times as fast as Ar. (b) He effuses 3.16 times as fast as Ar. (c) Ar effuses 9.98 times as fast as He. (d) Ar effuses 3.16 times as fast as He. (e) He and Ar effuse at the same rate.

Solved • Dec 16, 2019

Effusion

Q. Methane (CH4) diffuses 2.433 times as fast as a certain closely related gaseous compound. Which of the following could be the unknown gas? (a) O2 (b) C2H6 (c) CH3Br (d) CH3I (e) F2

Solved • Dec 16, 2019

Effusion

Q. From Chemistry by OpenStax, Chapter 9, Example 9.20, Check Your Learning: At a particular pressure and temperature, nitrogen gas effuses at a rate of 79 mL/s. Using the same apparatus at the same temperature and pressure, at what rate will sulfur dioxide effuse?

Solved • Dec 13, 2019

Effusion

Q. A party balloon filled with helium deflates to 2/3 of its original volume in 8.0 hours. How long will it take an identical balloon filled with the same number of moles of air (M=28.2 g/mol) to deflate to 1/2 of its original volume?

Solved • Dec 13, 2019

Effusion

Q. An unknown gas has an effusion rate that is 0.845 times that of sulfur hexafluoride at 85.0C, What is the molar mass of the unknown gas?

Solved • Dec 2, 2019

Effusion

Q. A sample of butane gas(C4H10) effuses through a small hole in a container at a rate of 45.0ml in 12sec. What volume of sulfur trioxide will effuse through the same opening in20 seconds?

Solved • Dec 2, 2019

Effusion

Q. It requires 36.0 seconds for 10.0ml of oxygen(O2) to effuse through a certain capillary tube. Under the same conditions of temperature and pressure it requires 50.0 seconds for 10.0ml of disilane to effuse through the same capillary tube. Calculate the molar mass of disilane.

Solved • Nov 28, 2019