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Honors Quiz - Avogadro's and Dalton

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

A scientist records 8.0 moles of gas. The scientist does not check the pressure of this gas. At t later time the scientist measures the volume of gas to be 150 ml and the new number of moles of gas to be 48 what was the orginal volume of the gas

a)

25 ml

b)

0.39 ml

c)

2.56 ml

d)

2.5 ml

2.

A 10. ml balloon is not tied all the way and 5.0 of the original 20. moles of gas escape before the gas is tied.What is the new volume of the gas

a)

30 ml

b)

10 ml

c)

7.5 ml

d)

2.5 ml

3.

Dalton's Law states...

a)

that at a constant temperature the volume of a confined ideal gas varies inversely with its pressure.

b)

that the total pressure exerted by the mixture of gases is equal to the sum of the partial pressures of individual gases

c)

how gases tend to expand when heated

d)

that the density of an ideal gas at constant pressure varies inversely with the absolute temperature of the gas.

4.

Three gases, Ar, N2 and H2 are mixed in a 500L container. Ar has a pressure of 255 torr, N2 has a pressure of 228torr and H2 has pressure of 752torr. What is the total pressure in the container?

a)

483torr

b)

270torr

c)

1235torr

5.
A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. The partial pressure of hydrogen is 220 mmHg and that of nitrogen is 410 mmHg. What is the partial pressure of water vapor?
a)
234 mmHg
b)
1.37 mmHg
c)
2.64 mmHg
d)
1, 494 mmHg
6.

Suppose 55.00 g of chlorine gas has a volume of 750.0 milliliters.

If the amount of gas is

increased to 1.80 mol, what new volume, in liters, will result?

a)

1740 liters

b)

1.74 liters

c)

1.740 liters

d)

1740. liters

7.
a)
752 mm Hg
b)
159 mm Hg
c)
593 mm Hg
d)
434 mm Hg
8.

A tank of gas contains 50 kPa of helium, 50 kPa of argon, and 100 kPa of neon. What is the total pressure of the gas mixture?

a)

100 kPa

b)

50 kPa

c)

200 L

d)

200 kPa

9.

A container holds a mixture of oxygen, nitrogen, and carbon dioxide. If the partial pressures are 300 mmHg, 500 mmHg, and 200 mmHg respectively, what is the total pressure inside the container?

a)

1000 mmHg

b)

800 mmHg

c)

600 mmHg

d)

1200 mmHg

10.

A gas cylinder contains 2.0 moles of helium at a volume of 10. liters. If the number of moles is increased to 6.0 moles, what will be the new volume, assuming constant temperature and pressure?

a)

30. liters

b)

20. liters

c)

15 liters

d)

30 liters