Carbon dioxide and an unknown gas start to effuse from a container and the carbon dioxide takes 4.69 times as long to escape as the unknown gas. what is the identity of the unknown gas? 7) a) br2 b) h2 c) hcl d) co e) no2
Solved
Show answers
More tips
- H Health and Medicine How to Improve Your Posture?...
- A Animals and plants How to Properly Care for a Pet Decorative Rabbit at Home?...
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
Answers on questions: Chemistry
- P Physics a mass of 5kg is pulled up a slope at a constant speed of 2m/s. after rising vertical height of 4m, the total work done was 1200J. What is the work done in overcoming friction?...
- S Social Studies To supply energy needs in the future, a.we have unlimited supplies of fossil fuels. b.it is not necessary to look for new sources of energy. c. renewable energy sources are...
- M Mathematics Atank holds 300 gallons of water and 100 pounds of salt. a saline solution with concentration 1 lb salt/gal is added at a rate of 4 gal/min. simultaneously, the tank is emptying...
Ответ:
The unknown gas is B)
.
Explanation: The problem is based on Graham's law of effusion rates of gases.
Carbon dioxide takes 4.69 times as long to escape as the unknown gas. It means the unknown gas is lighter than carbon dioxide since the lighter gas takes less time to escape.
From Graham's law, "Rate of effusion of a gas is inversely proportional to the molar mass of the gas."
Molar mass of carbon dioxide is 44.0 gram per mol. Let's say the molar mass of the unknown gas is M.
Do the square to both sides:
M = 2.00
2.00 gram per mol is the molar mass of hydrogen gas. So, the correct option is B)
.
Ответ: