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WorksheetsGas Laws Practice Problems
Total questions: 10
Worksheet time: 38mins
What is the pressure of the sample of gas trapped in the open-tube mercury manometer shown below if atmospheric pressure is 736 mmHg and h = 9.2 cm?
0.057 atm
1.1 atm
2.8 atm
3.6 atm
1. What will happen to the height (h) of the mercury column in the manometer shown below if the stopcock is opened, given that the atmospheric pressure is 755 mmHg?
h will decrease
h will not change
h will increase
not enough information given to answer the question
A sample of nitrogen gas has a volume of 32.4 L at 20°C. The gas is heated to 220ºC at constant pressure. What is the final volume of nitrogen?
2.94 L
19.3 L
31.4 L
54.5 L
A sample of N2 gas occupies 2.40 L at 20°C. If the gas is in a container that can contract or expand at constant pressure, at what temperature will the N2 occupy 4.80 L?
10°C
40°C
146°C
313°C
1. A gas evolved during the fermentation of sugar was collected. After purification its volume was found to be 25.0 L at 22.5°C and 702 mmHg. How many moles of gas were collected?
0.95 mol
1.05 mol
12.5 mol
22.4 mol
The gas pressure in an aerosol can is 3.5 atm at 25°C. If the gas is an ideal gas, what pressure would develop in the can if it were heated to 175°C?
3.5 atm
4.8 atm
5.3 atm
7.5 atm
How many grams of N2O, nitrous oxide, are contained in 500. mL of the gas at STP?
0.343 grams
0.982 grams
1.98 grams
2.73 grams
An aerosol can with a volume of 0.50 L has a bursting point of 2.6 atm. If the can contains 1.0 g CO2 and is heated to 400°C, will it burst?
Yes
No
A 1.00 L sample of gas at 760 torr is compressed to 0.800 L at constant temperature. Calculate the final pressure of the gas.
750 torr
800 torr
950 torr
1500 torr
A 4.00 L sample of gas at 300C and 1.00 atm is changed to 00C and 800 torr. What is the new volume?
1.32 L
2.52 L
3.42 L
5.65 L
