What is the mass of 5.00 liters of oxygen gas,O₂,at STP?

Question

Quizplus · Accepted Answer

At STP (Standard Temperature and Pressure), 1 mole of any gas occupies 22.4 liters. The molar mass of O₂ (oxygen gas) is approximately 32 g/mol. Since 5.00 liters is less than 22.4 liters, it represents less than 1 mole of oxygen gas. To find the mass of 5.00 liters of O₂ at STP, we use the proportion: $ \frac{32 \, \text{g/mol}}{22.4 \, \text{L/mol}} = \frac{x \, \text{g}}{5.00 \, \text{L}} $. Solving for x gives $ x = \frac{32 \, \text{g} \times 5.00 \, \text{L}}{22.4 \, \text{L}} = 7.14 \, \text{g} $.

What Is the Mass of 5