Gas Law Stoichiometry

A sample of gas with a volume of 30.0 mL at 25.0^oC is heated to 50.0^oC.  What is the new volume of the gas?

• 60.0 mL

• 15.0 mL

• 27.5 mL

• 32.5 mL

A mixture contains hydrogen gas with a partial pressure of 0.400 atm, oxygen gas with a partial pressure of 0.200 atm, and nitrogen gas with a partial pressure of 0.600 atm. What is the total pressure of the mixture of gases?

• 0.048 atm

• 1.200 atm

• 0.600 atm

• 0.400 atm

A mixture contains hydrogen gas with a partial pressure of 0.400 atm, oxygen gas with a partial pressure of 0.200 atm, and nitrogen gas with a partial pressure of 0.600 atm. What percentage of the gas is oxygen?

• 33.3%

• 20.0%

• 16.6%

• 25.0%

The molar volume of a gas at standard temperature and pressure (STP) is

• dependent on the type of gas.

• proportional to the molar mass of the gas.

• equal to the molar mass in grams.

• 22.4 liters.

Given the combustion reaction C₃H₈ + 5O₂ ​​→ 3CO₂ + 4H₂O, how many liters of carbon dioxide can be produced from 1.00 liter of O₂ at standard temperature and pressure?

• 0.600 L

• 0.825 L

• 1.21 L

• 1.67 L

Tags

NGSS.HS-PS1-7

Mg₃N₂ + 3H₂O ––> 3 MgO + 2NH₃

If 10.3 g of magnesium nitride is used, what volume of ammonia gas would be collected at 20˚C and 0.989 atm?

• 4.9 L NH₃

• 4.96 L NH₃

• 0.261 L NH₃

• 0.26 L NH₃

CO + O₂ −-> 2CO₂

How many liters of carbon dioxide at STP are produced from 10.0 L of carbon monoxide at STP?

• 10.0 L

• 20.0 L

• 5010 L

• 0.0199

Tags

NGSS.HS-PS1-7

A sample of oxygen gas occupies 5.0 L at STP. What is the mass of the oxygen gas in this sample?

• 7.1 g

• 5.0 g

• 32 g

• There is not enough information to determine the mass of the oxygen gas.

What mass of sodium chloride would be produced from the reaction of 11.2 liters of chlorine gas at STP with excess sodium?

• 29.2 g

• 58.4 g

• 9.23 g

• 18.4 g

A sample of 0.25 mol of oxygen gas is contained in a flask with a volume of 5.00 L. What can you conclude about an equal volume of nitrogen gas at the same temperature and pressure as the oxygen gas?

• It will have the same mass.

• It will have the same density.

• It will contain the same number of particles.

• It will have higher kinetic energy.