CHEMISTRY REVIEW: GAS LAWSsss

The pressure of a sample of CH4 gas (6.022 g) in a 30.0 L vessel at 402 K is ________atm.

0.414 atm

A mixture of He and Ne at a total pressure of 0.95 atm is found to contain 0.32 mol of He and 0.56 mol of Ne. The partial pressure of Ne is __________atm.

0.60 atm

The density of ammonia gas in a 4.32 L container at 837 torr and 45.0°C is _________g/L.

0.717 g/L

A balloon originally had a volume of 4.39 L at 44°C and a pressure of 729 torr. The balloon must be cooled to _______°C to reduce its volume to 3.78 L (at constant pressure).

0°C

Which of the following equations shows an incorrect relationship between pressures given in terms of different units?

1.0 torr = 2.00 mmHg

A 0.325 L flask filled with gas at 0.914 atm and 19°C contains ______mol of gas.

1.24 x 10^-2 mol

The reaction of 50 mL of Cl2 gas with 50 mL of CH4 gas (Cl2 + CH4 = HCl + CH3Cl) will produce a total of _______mL of products if pressure and temperature are kept constant.

100 mL

A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 L to 2.00 L at a constant temperature. After the compression, the gas pressure was _______ atm.

16.0 atm

The molecular volume of a gas at STP is ________L.

22.4 L

A vessel contained N2, Ar, He, and Ne. The total pressure in the vessel was 987 torr. The partial pressures of nitrogen, argon, and helium were 44.0, 486, and 218 torr, respectively. The partial pressure of neon in the vessel was _________torr.

239 torr

STP in the context of gases refers to _________.

273 K and 1 atm

A gas originally at 27°C and 1.00 atm pressure in a 3.9 L flask is cooled at constant pressure until the temperature is 11°C. The new volume of the gas is __________L.

3.7 L

The molar mass of a gas in _____g/mol if 3.5 g of the gas occupies 2.1 L at STP.

37 g/mol

The reaction of 50 mL of Cl2 has with 50 mL of C2H4 gas (Cl2 + C2H4 = C2H4Cl2) will produce a total of _________mL of products if pressure and temperature are kept constant.

50 mL

A pressure of 1.00 atm is the same as a pressure of _________ of mmHg.

760.0 mmHg

One significant difference between gases and liquids is that?

A gas assumes the volume of its container

Which of the following statements about gases is false?

All gases are colorless and odorless at room temperature

Gaseous mixtures?

Are all homogeneous

The kinetic-molecular theory predicts that pressure rises as the temperature of a gas increases because?

Both the gas molecules collide more frequently with the wall and the gas molecules collide more energetically

Of the following gases, ___________ will have the greatest rate of effusion at a given temperature.

CH4

The volume of a sample of gas (2.49 g) was 752 mL at 1.98 atm and 62°C. The gas is __________.

NO2

Of the follow _______ is a correct statement of Boyle's Law.

PV = constant

The first person to investigate the relationship between the pressure of a gas and its volume was?

Robert Boyle

Of the following _________ is a valid statement of Charles' Law.

V/T = constant

Which statement about atmospheric pressure is false?

With an increase in altitude, atmospheric pressure increases as well