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?
Answer
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
th
gas?
Answer
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
monoxide.
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.
Answer
b. using the van der Waals equation.
Answer
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.
Answer
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.
Answer
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
conditions.
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
compound.
Answer
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?
Answer

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)
$0.00
*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.
Testimonials
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.
Education
Awesome Job. I'll definitely request my writer again. Thank you!
Customer 455113, February 25th, 2022
Social Work and Human Services
Thanks for getting the assignment done in a timely fashion. I really appreciate it at such a difficult time for me!
Customer 453933, December 1st, 2020
Nursing
THANK YOU
Customer 454959, November 2nd, 2021
History
Perfect. Exactly what i needed
Customer 454937, October 25th, 2021
Other
Great writer
Customer 454983, March 14th, 2022
Health Care
GREAT. PERFECT TIMELINE.
Customer 455425, April 22nd, 2023
Nursing
thank you!!
Customer 454959, February 4th, 2022
Business Studies
good
Customer 454567, February 21st, 2022
Other
Best writer ever!!!
Customer 454983, February 1st, 2022
Psychology
Awesome Job... you are the best!
Customer 454497, February 18th, 2021
Philosophy
Thank you this update!
Customer 454745, May 17th, 2021
Other
Amazing writer. Truly the best.
Customer 454983, February 19th, 2022
11,595
Customer reviews in total
96%
Current satisfaction rate
3 pages
Average paper length
37%
Customers referred by a friend
OUR GIFT TO YOU
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

Order your essay today and save 20% with the discount code GOLDEN