[SOLVED] Chem 2045 Ch 8 HW

Author: Client Uploads

May 12th, 2022

Need help with my Chemistry question – Im studying for my class.

Struggling to find relevant content or pressed for time? – Don’t worry, we have a team of professionals to help you on

Get a 15% Discount on this Paper

Order Now

There are a total of 24 questions required – 14 shown here and the rest in the back of the book (link at the bottom). Please solve and SHOW ALL WORK.

Thank you. Please contact me ASAP if you have any questions.

Convert 6.159 kPa to mm Hg

Group of answer choices

4.620×106

4.33×105

49.20

46.20

Flag this QuestionQuestion 22 pts

What volume of methane gas, CH4, has the same number of molecules as 10.00 L of helium gas at the same temperature and pressure?

Group of answer choices

20.00L

2.00L

10.00L

50.00L

Flag this QuestionQuestion 31 pts

Which of the following will happen if the temperature of a gas is decreased from 40°C to 20°C at constant pressure?

Group of answer choices

The volume will increase slightly.

The volume will double.

The volume will decrease slightly.

The volume will be halved.

Flag this QuestionQuestion 41 pts

Table of Contents

A sample of a gas at 0.750 atm and 100oC occupies 25.0 L. At what pressure (atm) the gas will occupy 10.0 L at the same temperature?

Group of answer choices

333

0.333

1.88

Flag this QuestionQuestion 51 pts

What would be the volume (L) of a gas sample at 276oK and 0.979 atm, if it occupies 18.3 L at 328oK and 0.979 atm?

Group of answer choices

12.2

21.7

19.3

15.4

Flag this QuestionQuestion 61.5 pts

The volume of a sample of gas is 950 mL at STP. What volume (L) will the sample occupy at 110oC and 1520 torr?

Group of answer choices

0.666

339

0.339

0.777

Flag this QuestionQuestion 72 pts

The pressure of argon in an incandescent light bulb is 0.55 atm at 82oC. If a 100-watt bulb has a volume of 105 cm3, how many grams of argon is in the bulb?

Group of answer choices

0.19

0.095

0.10

0.15

Flag this QuestionQuestion 82 pts

A 333 g sample of neon is placed into a 3.33 L cylinder, and the cylinder is heated until the gas pressure is 333 atm. What is the gas temperature in oC?

Group of answer choices

819

546

346

656

Flag this QuestionQuestion 91 pts

How many molecules of nitrogen exist in a 250 mL container at 1.5 x 10-3 torr and 1500oC?

Group of answer choices

3.4×10-9

3.4×109

2.0×1015

2.0×1014

2.0×1018

Flag this QuestionQuestion 101.5 pts

What is the density (g/L) of methane (CH4) at 255 torr and 100oC?

Group of answer choices

1.75

0.075

0.35

0.175

Flag this QuestionQuestion 112 pts

For which compound would a 0.200 g sample occupy 213 cm3 at 50oC and 0.825 atm?

Group of answer choices

CH4

C2H4

C2H6

C3H4

Flag this QuestionQuestion 121 pts

According to the kinetic molecular theory, which of the following is not true?

Group of answer choices

The average kinetic energy of gas particles is proportional to the Celsius temperature.

Gas molecules are assumed to have no volume.

all of these is true.

Gas pressure is caused by collisions between gas molecules and the container walls.

Flag this QuestionQuestion 132 pts

What volume (L) of hydrogen at 27oC and 0.951 atm may be prepared by the reaction of11 g of gallium with an excess of hydrochloric acid?
2 Ga(s) + 6 HCl(aq) 2 GaCl3(aq) + 3 H2(g)

Group of answer choices

6.64

3.75

6.12

7.74

Flag this QuestionQuestion 141 pts

A hydrogen gas effuses at a rate of 6.24 mL/s. Calculate the effusion rate in mL/s of carbon dioxide in the same effusion apparatus.

Group of answer choices

3.22

1.33

2.00

0.650

*******************PLEASE DON’T FORGET BELOW*****************************

Click this link to access the book and answer the question numbers below:

https://openstax.org/books/chemistry-atoms-first-2e/pages/1-introduction

Solve the following AFTER-THE-CHAPTER exercises listed below. Show your work where necessary. You do not need to rewrite the questions.

Chapter 8: questions # 15; 25; 32; 45; 52; 59; 66;67;86;94

Calculate the price

Make an order in advance and get the best price

Type of paper

Academic level

Deadline

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.

step 1

Upload assignment 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.

step 2

Relax

Once you place an order with our professional do my paper services, all you need to do is relax as our experts work to impress you with amazing quality and timing for your order!

step 3

Review the final draft

As soon as the paper is ready, we’ll send you a copy via email. You'll also be able to download it from your account and request a revision or rate the work as appropriate.

Get personalized services with MyCoursebay

One writer for all your papers

You can select one writer for all your papers. This option enhances the consistency in the quality of your assignments. Select your preferred writer from the list of writers who have handledf your previous assignments

Same paper from different writers

Are you ordering the same assignment for a friend? You can get the same paper from different writers. The goal is to produce 100% unique and original papers

Copy of sources used

Our homework writers will provide you with copies of sources used on your request. Just add the option when plaing your order

What our partners say about us

We appreciate every review and are always looking for ways to grow. See what other students think about our do my paper service.

Nursing

Excellent work!! Thanks again!

Customer 452707, October 14th, 2022

Social Work and Human Services

Thank You!

Customer 452587, November 17th, 2021

Education

Thank you so much for all the help, I really appreciate it!

Customer 452631, November 3rd, 2021

Communications

Thank you very much

Customer 452669, November 17th, 2021

Psychology

The paper is well written and professional. I highly recommend

Customer 452485, August 22nd, 2021

Literature

Thank you , this is perfect !

Customer 452795, May 15th, 2022

Other

Customer 452813, July 3rd, 2022

ENVIRONMENT SCIENCE

great

Customer 452813, June 26th, 2022

Social Work and Human Services

Excellent Work

Customer 452587, November 22nd, 2021

Social Work and Human Services

Excellent Work!

Customer 452587, August 24th, 2021

Nursing

Amazing work! I passed the assignment!

Customer 452707, August 20th, 2022

IT, Web

Excellent job on the paper.

Customer 452885, January 25th, 2023

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

[SOLVED] Chem 2045 Ch 8 HW

A sample of a gas at 0.750 atm and 100oC occupies 25.0 L. At what pressure (atm) the gas will occupy 10.0 L at the same temperature?

What would be the volume (L) of a gas sample at 276oK and 0.979 atm, if it occupies 18.3 L at 328oK and 0.979 atm?

The volume of a sample of gas is 950 mL at STP. What volume (L) will the sample occupy at 110oC and 1520 torr?

The pressure of argon in an incandescent light bulb is 0.55 atm at 82oC. If a 100-watt bulb has a volume of 105 cm3, how many grams of argon is in the bulb?

A 333 g sample of neon is placed into a 3.33 L cylinder, and the cylinder is heated until the gas pressure is 333 atm. What is the gas temperature in oC?

How many molecules of nitrogen exist in a 250 mL container at 1.5 x 10-3 torr and 1500oC?

What is the density (g/L) of methane (CH4) at 255 torr and 100oC?

For which compound would a 0.200 g sample occupy 213 cm3 at 50oC and 0.825 atm?

What volume (L) of hydrogen at 27oC and 0.951 atm may be prepared by the reaction of11 g of gallium with an excess of hydrochloric acid?2 Ga(s) + 6 HCl(aq) 2 GaCl3(aq) + 3 H2(g)

A hydrogen gas effuses at a rate of 6.24 mL/s. Calculate the effusion rate in mL/s of carbon dioxide in the same effusion apparatus.

What volume (L) of hydrogen at 27oC and 0.951 atm may be prepared by the reaction of11 g of gallium with an excess of hydrochloric acid?
2 Ga(s) + 6 HCl(aq) 2 GaCl3(aq) + 3 H2(g)