Free Printable Unit 6: Gas Laws Comprehensive Review

Worksheets

Unit 6: Gas Laws Comprehensive Review

Total questions: 20

Worksheet time: 3hrs 20mins

Name

Class

Date

Determine the number of moles in a container of gas at STP with a volume of 99.2 L.

2222.08 moles

4.43 moles

22.4 moles

76.8 moles

If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

.002766 mole

.0069 mol

2.766 mol

9.887 mol

At STP, what is pressure in atmospheres?

1 atm

10 atm

0 atm

100 atm

What is the temperature of natural gas in an oil pipeline if we know there are 0.91 moles of the gas in the pipeline and the volume of the pipeline is 5.43 L and the gas is exerting a pressure of 4.21 atm?
R = 0.082 (L x atm) / (K x mol)

306 °C

579.4 °C

33.4 °C

- 19.3 °C

For his chemistry demonstration, Davy filled up a 5 L balloon with nitrous oxide gas at 25°C and an atmospheric pressure of 1.08 atm. For easier transportation he stored it in a pressurized container at 1.5 atm and temperature of 5°C. What volume will the balloon have?

9.77 L

3.36 L

7.56 L

4.35 L

The gas in an aerosol can exerts a pressure of 3.00 atm at 25°C. Directions on the can warn the user not to keep the can in a place where the temperature exceeds 100°C. What would the gas pressure in the can be at 100°C?

3.76 atm

2.40 atm

12 atm

0.75 atm

A balloon of Argon gas has a volume of 150. mL when its pressure is 0.647 atm. What will the pressure of the gas be at a volume of 98.3 mL if the temperature remains constant?

0.987 atm

1.53 atm

2.36 atm

97.1 atm

How do you convert between Celsius and Kelvin?

add 273

add 260

add 293

change the C to a K

Calculate:
If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 L, what will the new pressure inside the piston be?

1.3 atm

2.2 atm

1.8 atm

10.

Calculate:
I have 130 liters of gas in a piston at a temperature of 250⁰ C. If I cool the gas until the volume decreases to 85 liters, what will temperature of the gas be?

163 K

342 K

800 K

11.

What is standard temperature and pressure?

1 atm and 0K

1 atm and 273 K

0 atm and 273 K

0 atm and 0 C

12.

Find the new volume that 0.15 moles will occupy if 0.3 moles takes up 8mL of space.

4 mL

16 mL

0.4 mL

not enough information

13.

At constant pressure, a balloon's volume changed from 15L to 45L. If the final temperature was 350K, what was the initial temperature?

2 K

1050 K

117 K

not enough information

14.

If 3.25 mol of Ar occupies 100. L at a particular temp and pressure, what volume does 14.15 mol of Ar occupy under same condition?

435 L

225 L

100 L

522 L

15.

2C₅H_12(g) + 11O_2(g) --> 10CO_(g) + 12H₂O_(g)

How many liters of carbon monoxide can be made from 31L pentane vapor (C₅H₁₂)?

6.2 L

155 L

31 L

11 L

16.

CO_2(g) + 3H_2(g) --> CH₃OH_(g) + H₂O_(g)

How many liters of methanol vapor (CH₃OH) can be made using 24 L hydrogen gas?

48 L

24 L

72 L

8 L

17.

According to Avogadro's Law, at STP 1 mole of gas will occupy...

22.4 mL

22.4 L

22.4 g

V=p/nRT

18.

2Al + 6HCl --> 2AlCl₃ + 3H₂

Aluminium reacts with hydrochloric acid. How many grams of aluminum are necessary to produce 11 L of hydrogen gas at STP?

8.8

0.99

1.0

19.

Mg₃N₂ + 3H₂O ––> 3 MgO + 2NH₃

If 10.3 g of magnesium nitride is used, what volume of ammonia gas would be collected at 20˚C and 0.989 atm?

3.9 L NH₃

5.00 L NH₃

0.261 L NH₃

0.26 L NH₃

20.

A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of the three gases are 2.00 atm, 3.00 atm, and 4.00 atm, respectively. What is the total pressure inside the container?

900 atm

0.90 atm

9.00 atm

920 atm

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Unit 6: Gas Laws Comprehensive Review

Total questions: 20

Worksheet time: 3hrs 20mins

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