HomeworkLib
Question

A 0.218 mol sample of Ar gas is contained in a 7.00 L flask at room...

A 0.218 mol sample of Ar gas is contained in a 7.00 L flask at room temperature and pressure. What is the density of the gas, in grams/liter, under these conditions?

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1


Molar mass of Ar = 39.95 g/mol

use:
mass of Ar,
m = number of mol * molar mass
= 0.218 mol * 39.95 g/mol
= 8.709 g

Now use:
Density = mass / volume
= 8.709 g / 7.00 L
= 1.24 g/L

Answer: 1.24 g/L

0 0
Add a comment
Know the answer?
Add Answer to:
A 0.218 mol sample of Ar gas is contained in a 7.00 L flask at room...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • a.) A 2.50 L flask was used to collect a 2.65 g sample of propane gas,...

    a.) A 2.50 L flask was used to collect a 2.65 g sample of propane gas, . After the sample was collected, the gas pressure was found to be 743 mmHg. What was the temperature of the propane in the flask? ______°C b.)Butane,C4H10 , is an easily liquefied gaseous fuel. Calculate the density of butane gas at 0.791 atm and 24°C. Give the answer in grams per liter. Density = ______g/L c.) A 0.488-g sample of a colorless liquid was...

  • a Roforoncos Use the References to access important values if needed for this question. A 1.13...

    a Roforoncos Use the References to access important values if needed for this question. A 1.13 gram sample of an unknown gas is found to occupy a volume of 1.35 L at a pressure of 504 mm Hg and a temperature of 46°C. The molecular weight of the unknown gas is g/mol. Assume ideal behavior Submit Answer Q s. Roforoncos Use the References to access important values if needed for this question. g/L at a pressure of 0.960 atm and...

  • QUESTION 2 What amount (in moles) of a gas is contained in 40.4 L at-82.4 °C...

    QUESTION 2 What amount (in moles) of a gas is contained in 40.4 L at-82.4 °C with a pressure of 527.4 mm Hg? QUESTION 3 A flask is filled with 1.03 moles of a gas at 13.4 K and 618.9 mm Hg. The flask is then opened and an additional 1.84 moles are added. The temperature of the flask is then changed to 172.9 K. What is the pressure (in atm) of the flask under these final conditions? QUESTION 4...

  • name Prelaboratory Assignment: Gas Laws Technical objective: A flask with a sample of gas at room...

    name Prelaboratory Assignment: Gas Laws Technical objective: A flask with a sample of gas at room temperature and pressure weighs 97.4842 g. The same flask with air (density 1.17 g/L) weighs 96.8848 g. The same flask filled with water ( 0.998 g/mL) weighs 345.86 g. The pressure in the room is 0.989 atm and the temperature is 22.2°C. 1. Calculate the volume of the flask. 2. Calculate the mass of the air that the flask can hold. 3. Calculate the...

  • Please help with these two 1. A flask is filled with 1.08 moles of a gas...

    Please help with these two 1. A flask is filled with 1.08 moles of a gas at 20.7 K and 646.8 mm Hg. The flask is then opened and an additional 1.33 moles are added. The temperature of the flask is then changed to 272.4 K. What is the pressure (in atm) of the flask under these final conditions? 2. The density of a gas is 4.22 g/L at a pressure of 1.77 atm and a temperature of  14.66 °C. What...

  • A sample of gas is contained in a 245 mL flask at a temperature of 23.5°C....

    A sample of gas is contained in a 245 mL flask at a temperature of 23.5°C. The gas pressure is 37.4 mm Hg. The gas is moved to a new flask, which is then immersed in ice water, and which has a volume of 60 mL. What is the pressure of the gas in the smaller flask at the new temperature? _______ mmHg

  • 1.24 mol sample of argon gas at a temperature of 7.00 oC is found to occupy...

    1.24 mol sample of argon gas at a temperature of 7.00 oC is found to occupy a volume of 26.0 liters. The pressure of this gas sample 19 Hg. mm Submit Answer Retry Entire Group 9 more group attempts remaining A sample of xenon gas collected at a pressure of 723 sample Hg and a temperature of 299 K has a mass of 138 grams. The volume of the mm L. 1s Submit Answer Retry Entire Group 9 more group...

  • A 10.83 mol sample of argon gas is maintained in a 0.7598 L container at 295.6...

    A 10.83 mol sample of argon gas is maintained in a 0.7598 L container at 295.6 K. What is the pressure in atm calculated using the van der Waals' equation for Ar gas under these conditions? For Ar, a = 1.345 Llatm/mol2 and b = 3.219x10-2 L/mol. atm USE LIIC CICICULUS LU al USS IITIPUI lalil va The rate of effusion of H2 gas through a porous barrier is observed to be 1.17 x 10-4 mol/h. Under the same conditions,...

  • What is the pressure of a 0.17 mol sample of carbon monoxide gas contained in a...

    What is the pressure of a 0.17 mol sample of carbon monoxide gas contained in a 750 mL flask at 50 ºC?

  • What is the RMS velocity (in m/s) of Ar gas at 387 K? At a fixed...

    What is the RMS velocity (in m/s) of Ar gas at 387 K? At a fixed temperature and pressure, a 0.474 mol sample of gas has a volume of 8.65 L. How many mol of gas will have a volume of 6.28 L under these same conditions? Question 5 4 pts A sample of gas has a volume of 8.22 L at 25.0 °C at constant pressure. What will be the volume (in L) of this same sample if the...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT