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Unit 7 Gas Laws Formative 2026--bhs

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12 questions
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Question 1
1.

A gas has a pressure of 37.36 inHg at -47.00°C. What is the new pressure if the temperature changes to 84.3°C?

Include proper sig figs and a unit!

Question 2
2.

A gas has a pressure of 780.7 torr and a volume of 2.50 L. What is the volume if the pressure changes to 32.00 inHg?

Include proper sig figs and a unit!

Question 3
3.

A 179.0 mL sample of a gas is found at 65.38°C. What is the temperature of this gas if the volume has changed to 260.0 mL?

Include proper sig figs and a unit!

Question 4
4.

Determine the number of moles of a gas in a 1250. mL cylinder at 2600 mmHg and -15°C.

Include proper sig figs and a unit!

Question 5
5.

Determine the volume of 24.60 g of fluorine gas at -35.50°C and 109220 Pa.

Include proper sig figs and a unit!

Question 6
6.

Calculate the molecular weight of a gas with a density of 62.82 g/L at 265.7 K and 35.6 inHg.

Question 7
7.

A 4.00 L cylinder contains 2.70 g of helium, 3.50 g of chlorine, and 2.40 moles of ozone at -25.0°C. Calculate the total pressure.

Question 8
8.

Given: ____H2S + ____O2 --> ____H2O + ____SO2

If you are given 32.00 L of oxygen gas determine the volume of sulfur dioxide produced at STP.

Question 9
9.

Question 10
10.

Question 11
11.

At what rate will the previous gases leave from the container?

Hint: use the masses and order from question 10 to answer. ROUND TO 3 SIG FIGS.

Question 12
12.

The following gases are in a container together. Rank them in order from first to leave to last to leave when the top is removed.
nitrogen
methane (CH4)
chlorine
helium
argon
carbon dioxide
A container holds carbon trifluoride and helium. Which will exit first?
helium
carbon trifluoride
Which of the following are incorrect statement of the Kinetic Molecular Theory?
Gases are in constant, rapid, and random motion and posses potential energy.
There are no forces of attraction or repulsion between gases.
Gases consist of large number of very small particles that are spread very far apart.
The average kinetic energy of a gas is dependent on temperature.
Collisions between gas particles are not elastic.