4 chem questions.

Flask B: N2 at 250 ton and 0°C
Flask C: H, at 100 torr and 0°C
a. In which flask will the molecules have the greatest average kinetic energy?
b. In which flask will the molecules have the greatest average velocity?
Answer +
118. Consider separate 1.0-L gaseous samples of H., Xe, Cly, and O, all at STP.
a. Rank the gases in order of increasing average kinetic energy.
b. Rank the gases in order of increasing average velocity.
c. How can separate 1.0-L samples of O, and H, each have the same average velocity?
119. The effusion rate of an unknown gas is measured and found to be 31.50 mL/min. Under
identical experimental conditions, the effusion rate of 0,(9) is found to be 30.50 mL/min. If
the choices for the unknown gas are CH, CONO, CO2, and NO,, what is the identity of the
120. The rate of effusion of a particular gas was measured and found to be 24.0 mL/min. Under
the same conditions, the rate of effusion of pure methane (CH) gas is 47.8 mL/min. What
is the molar mass of the unknown gas?
121. One way of separating oxygen isotopes is by gaseous diffusion of carbon monoxide. The
gaseous diffusion process behaves like an effusion process. Calculate the relative rates of
effusion of 12C160, 1217, and 12C180. Name some advantages and disadvantages of
separating oxygen isotopes by gaseous diffusion of carbon dioxide instead of carbon
Answer +
122. It took 4.5 minutes for 1.0 L helium to effuse through a porous barrier. How long will it take
for 1.0 L Cl, gas to effuse under identical conditions?
123. Calculate the pressure exerted by 0.5000 mole of N, in a 1.0000-L container at 25.0°C
a. using the ideal gas law.
b. using the van der Waals equation.
c. Compare the results.
Answer +
124. Calculate the pressure exerted by 0.5000 mole of N, in a 10.000-L container at 25.0°C
a. using the ideal gas law.
b. Calculate the temperature of the air required for the hot air balloon to provide the
same lift as the helium balloon at 1.00 atm and 25°C. Assume atmospheric conditions
are 1.00 atm and 25°C.
166. We state that the ideal gas law tends to hold best at low pressures and high temperatures.
Show how the van der Waals equation simplifies to the ideal gas law under these
167. You are given an unknown gaseous binary compound (that is, a compound consisting of
two different elements). When 10.0 g of the compound is burned in excess oxygen, 16.3 g of
water is produced. The compound has a density 1.38 times that of oxygen gas at the same
conditions of temperature and pressure. Give a possible identity for the unknown
168. Nitrogen gas (N2) reacts with hydrogen gas (H.) to form ammonia gas (NH). You have
nitrogen and hydrogen gases in a 15.0-L container fitted with a movable piston (the piston
allows the container volume to change so as to keep the pressure constant inside the
container). Initially the partial pressure of each reactant gas is 1.00 atm. Assume the
temperature is constant and that the reaction goes to completion.
a. Calculate the partial pressure of ammonia in the container after the reaction has
reached completion.
b. Calculate the volume of the container after the reaction has reached completion.
169. Consider a classroom containing ten evenly spaced rows of students. If a student in towi
releases laughing gas (N2O) and a student in tow 10 simultaneously releases a lachrymator
(a gas that causes tears) with molar mass of 176 g/mol, in which tow do the students first
laugh and cry at the same time?

Don't use plagiarized sources. Get Your Custom Essay on
4 chem questions.
Just from $13/Page
Order Essay
Calculate the price
Make an order in advance and get the best price
Pages (550 words)
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Upload your instructions
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with Writall
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
Social Work and Human Services
Thanks a million!!
Customer 453933, October 7th, 2020
Huge help! Fantastic work!
Customer 454991, October 19th, 2021
Customer 453933, January 13th, 2021
Social Work and Human Services
Customer 453933, October 27th, 2020
HIMA 310
Customer 453913, May 23rd, 2021
I received a 100 on this work.. I am very pleased and know that I have someone that knows what they are doing and follows instructions!!!! Great work !!! Thank you, Thank you !!
Customer 454497, September 3rd, 2020
Thank you
Customer 455319, June 6th, 2022
Got an A in this project.
Customer 453877, September 5th, 2020
Criminal Justice
great paper. came fast and exactly what I needed
Customer 455099, November 13th, 2021
Thanks so much! The writer did an excellent job!
Customer 454503, June 21st, 2020
Health Care
Thank you very much :)
Customer 455247, February 6th, 2022
I got an A. Thanks because I can rely on this excellent work.
Customer 453877, February 17th, 2021
Customer reviews in total
Current satisfaction rate
3 pages
Average paper length
Customers referred by a friend
15% OFF your first order
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Claim my 15% OFF Order in Chat
Live Chat+1(978) 822-0999EmailWhatsApp