Stoichiometry Gas

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

Mg₃N₂ + 3H₂O ––> 3 MgO + 2NH₃If 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

Hydrochloric acid and magnesium react to produce magnesium chloride and hydrogen gas. As in the molar volume lab, the gas is collected in a tube by water displacement. The space above the water contains

• hydrogen gas only.

• hydrogen gas, water vapor, and magnesium chloride.

• hydrogen gas and water vapor.

• hydrogen gas and magnesium chloride.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

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.

Hydrogen and oxygen react under a specific set of conditions to produce water according to the follwoing: 2H₂(g) + O₂(g) --> 2H₂O(g). How many moles of hydrogen would be required to produce 5.0 mol of water?

• 5.0 mol H₂

• 4.0 mol H₂

• 7.0 mol H

• 5.0 mol of H

Tags

NGSS.MS-PS1-5

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

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

Tags

NGSS.HS-PS1-7

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.

When solving for gas stoichiometry problems which of the following are correctly matched?

• STP conditions; 22.4L/mole

• NON STP conditions; PV=nRT

• STP conditions; PV=nRT

• NON STP conditions; 22.4 moles