If 0.5 moles of a gas occupy 12 liters at STP, what is the molar volume of the g

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Question: If 0.5 moles of a gas occupy 12 liters at STP, what is the molar volume of the gas? (2023)

Options:

Correct Answer: 22.4 L

Exam Year: 2023

Solution:

At STP, 1 mole of any gas occupies 22.4 L. Therefore, 0.5 moles occupy 0.5 x 22.4 L = 11.2 L, confirming the molar volume is 22.4 L.

If 0.5 moles of a gas occupy 12 liters at STP, what is the molar volume of the gas? (2023)

If 0.5 moles of a gas occupy 12 liters at STP, what is the molar volume of the gas? (2023)

Step 1: Understand that STP (Standard Temperature and Pressure) means 0 degrees Celsius and 1 atmosphere of pressure.
Step 2: Know that at STP, 1 mole of any gas occupies 22.4 liters.
Step 3: Calculate the volume occupied by 0.5 moles of gas by multiplying 0.5 moles by 22.4 liters per mole: 0.5 x 22.4 L = 11.2 L.
Step 4: Compare the calculated volume (11.2 L) with the given volume (12 L).
Step 5: Confirm that the molar volume of the gas at STP is still 22.4 L, as this is a standard value for any gas.

Molar Volume at STP – At standard temperature and pressure (STP), 1 mole of an ideal gas occupies 22.4 liters.
Gas Laws – Understanding the relationship between moles, volume, and conditions of temperature and pressure.