How To Calculate Gas Volumes

This video tutorial explains how to calculate gas volumes for chemical reactions using molar volumes. It covers the concept that 1 mole of any gas occupies 24 liters at room temperature and pressure. The video uses examples, such as the combustion of hexane, to demonstrate how to apply ratios from chemical equations to calculate gas volumes. It also provides advanced calculations for varying amounts of reactants, emphasizing the use of the formula: gas volume = moles of gas x 24 liters/mole.

If 1 mole of a gas occupies 24 liters, how many liters would 2 moles occupy?

• 48 liters

• 24 liters

• 12 liters

• 72 liters

What is the volume of carbon dioxide produced when 1 mole of hexane reacts with oxygen?

• 72 liters

• 24 liters

• 288 liters

• 144 liters

How many moles of carbon dioxide are produced from 20.5 moles of hexane?

• 123 moles

• 205 moles

• 246 moles

• 410 moles

Using the formula, what is the volume of 123 moles of carbon dioxide?

• 2,952 liters

• 1,476 liters

• 3,456 liters

• 4,920 liters

What is the molar volume of any gas at room temperature and pressure?

• 12 liters per mole

• 24 liters per mole

• 30 liters per mole

• 18 liters per mole