Gas Law Quiz #2 Review

An 18 liter container holds 16.00 grams of oxygen gas (O₂) at 45 °C. What is the pressure in the container?

• 0.725 atm
• 11.0 atm
• 23.2 atm
• 1.45 atm

Find the density of neon gas at 0.725 atm and 25°C.

• 0.345 g/L

• 0.465 g/L

• 0.599 g/L

• 0.789 g/L

Why would O₂ effuse faster than CO₂ in the same room?

• because O₂ has more energy

• because CO₂ has a greater molar mass

• because oxygen has a higher temperature

• they will effuse the same because the temperature is fixed

If 3.25 mol of Ar occupies 100. L at a particular temp and pressure, what volume does 14.15 mol of Ar occupy under the same conditions?

• 435 L

• 225 L

• 100 L

• 522 L

How many times faster will helium gas effuse as compared to oxygen gas?

• 8.0 times

• 2.8 times

• 0.35 times

• 0.13 times

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

• 0.600 L

• 0.825 L

• 1.21 L

• 1.67 L

What volume does 13.6 g of O₂ gas at 37°C and 135 kPa occupy?

• 6.22 L

• 8.11 L

• 10.54 L

• 12.73 L

Ammonia is produced from the reaction of nitrogen and hydrogen gases. What volume of hydrogen at STP is required to produce 25 g of ammonia?

N₂(g) + 3H₂(g) → 2NH₃(g)

• 33 L

• 1.1 L

• 49 L

• 25 L

Tags

NGSS.HS-PS1-7

At 250 k and 1.75 atm, a gas has a mass of 15.3 g and occupies 5,600 mL. What is the molar mass of the gas?

• 32.04

• 42.15

• 48.91

• 54.28

The assumptions of an Ideal Gas don't hold true at

• extremely high temperatures.

• extremely low temperatures.

• extremely low pressures.

• extremely large volumes.