Boyle/Charles/Gay-Lussac
If a gas is cooled from 323.0 K to 273.15 K and the volume is kept constant, what final pressure would result if the original pressure was 750.0 mmHg?
**Answer MUST include units to be correct.
634.2 mm Hg
A gas has a volume of 800.0 mL at −23.0 °C and 300.0 torr. What would the volume of the gas be at 227.0 °C and 600.0 torr of pressure?
**Answer MUST have units to be correct.
800 mL
At what temperature would 2.10 moles of N2 gas have a pressure of 1.25 atm and in a 25.0 L tank?
**Answer MUST include units to be correct.
181 K
A hot air balloonist puts 125,000 Liters of air into their balloon at 27 °C and atmospheric pressure. When they heat the air to 200 °C at constant pressure, what is the final volume of the air in the balloon?
**Answer MUST include units to be correct.
197,000 L
At 225.0 °C a gas has a volume of 400.0 mL. What is the volume of this gas at 127.0 °C?
**Answer MUST include units to be correct.
321 mL
What is the volume of gas at 2.00 atm and 200.0 K if its original volume was 300.0 L at 0.250 atm and 400.0 K?
**Answer MUST include units to be correct.
18.8 L
A piece of dry ice, CO2, is placed into an evacuated 2.00 L rigid container and allowed to sublime. After complete sublimation, the pressure inside the container is 5.60atm at 25 degrees Celsius. Calculate the number of moles of CO2 present in the sample.
**Your answer must have units to be correct!
0.458 mol CO2
18.016 g of H2O vapor is produced from a reaction. At STP, what is the volume of the vapor?
**Answer MUST include units to be correct.
22.4 L
To what pressure must a gas be compressed in order to get into a 3.00 cubic foot tank the entire weight of a gas that occupies 400.0 cu. ft. at standard pressure?
**Answer MUST include units to be correct.
133 atm
What is the final volume of a 400.0 mL gas sample that is subjected to a temperature change from 22.0 °C to 30.0 °C and a pressure change from standard pressure to 360.0 mmHg?
**Answer MUST include units to be correct.
867 mL
At what temperature does 5.00 g of H2 occupy a volume of 50.0 L at a pressure of 1.01 atm?
**Answer MUST include units to be correct.
248 K
Given the reaction:
3Mg + 2AuCl3 --> 3MgCl2 + 2Au
How many Magnesium atoms are required to produce 9.0 grams of gold?
**Answer MUST include units to be correct.
4.13 x 1022 atoms Mg
A gas occupies 25.3 mL at a pressure of 790.5 mmHg. Determine the volume if the pressure is reduced to 0.804 atm.
**Answer MUST include units to be correct.
32.7 L
At conditions of 785.0 torr of pressure and 15.0 °C temperature, a gas occupies a volume of 45.5 mL. What will be the volume of the same gas at 0.98 atm and 30.0 °C?
**Answer MUST include units to be correct.
50.4 mL
When filling a weather balloon with gas, you must consider that the gas will expand greatly as it rises and the pressure decreases.
Let's say you put 10.0 moles of He gas into a balloon that can hold 5000.0 L of gas. Currently, the balloon is not full because of the high pressure on the ground.
What is the pressure when the balloon rises to a point where the temperature is -10.0 degrees Celsius and the balloon has completely filled with gas?
**Answer MUST include units to be correct.
73 L
Look at the phase diagram.
If the pressure of the gas is 30 atm, at what temperature does freezing occur?
**Answer MUST include units to be correct.
0 degrees Celsius
An open "empty" 2 L plastic pop container, which has an actual inside volume of 2.05 L, is removed from a refrigerator at 5 °C and allowed to warm up to 21 °C. What volume of air measured at 21 °C, will leave the container as it warms?
**Answer MUST include units to be correct.
0.12 L
I have a gas of unknown volume held at a temperature of 115 K in a container with a pressure of 60 atm. If by increasing the temperature to 225 K and decreasing the pressure to 30 atm causes the volume of the gas to be 29 L, what was the original volume of the gas?
**Answer MUST include units to be correct.
7.41 L
Assuming constant P and n, sketch a graph that correctly represents the relationship between V and T for an ideal gas.
See Ms. Moon for correct response.
A 283.3-g sample of X2 (g) has a volume of 30 L at 3.2 atm and 27 °C. What is element X?
Chlorine (Cl)