Understanding Molar Volumes of Gases

What does the term 'molar volume of a gas' refer to?

• The pressure exerted by one mole of gas

• The volume occupied by one mole of gas

• The temperature at which one mole of gas exists

• The weight of one mole of gas

At room temperature and pressure (RTP), what is the molar volume of a gas?

• 22,400 cm³

• 24,000 cm³

• 20,000 cm³

• 26,000 cm³

What is the standard temperature used for measuring molar volumes at STP?

• 15 degrees Celsius

• 10 degrees Celsius

• 0 degrees Celsius

• 25 degrees Celsius

How do you calculate the volume of a gas if you know the number of moles at RTP?

• Add 24,000 to the number of moles

• Multiply the number of moles by 24,000

• Divide the number of moles by 24,000

• Multiply the number of moles by 22,400

If you have 2 moles of gas at RTP, what is the volume occupied?

• 48,000 cm³

• 24,000 cm³

• 22,400 cm³

• 12,000 cm³

To find the number of moles from a given volume of gas at STP, you should:

• Add 22,400 to the volume

• Divide the volume by 22,400

• Multiply the volume by 22,400

• Subtract 22,400 from the volume

What is the molar volume of a gas at standard temperature and pressure (STP)?

• 20,000 cm³

• 22,400 cm³

• 24,000 cm³

• 26,000 cm³

If a gas occupies 2,400 cm³ at RTP, how many moles does it represent?

• 1 mole

• 0.1 moles

• 10 moles

• 0.01 moles

What is the volume of 3.5 moles of nitrogen gas at STP?

• 70,000 cm³

• 78,400 cm³

• 22,400 cm³

• 24,000 cm³

How do you calculate the volume of 2.5 moles of gas at RTP?

• Divide 2.5 by 24,000

• Multiply 2.5 by 24,000

• Add 24,000 to 2.5

• Multiply 2.5 by 22,400