Answer:
0.27 mol
Explanation:
Given data
Step 1: Convert the temperature to the Kelvin scale
When working with gases, we need to convert all temperatures to the absolute scale, using the following expression.
[tex]K = \° + 273.15\\K = 70 + 273.15 = 343 K[/tex]
Step 2: Calculate the moles of gaseous oxygen
We will apply the ideal gas equation.
[tex]P \times V = n \times R \times T\\n = \frac{P \times V}{R \times T} = \frac{5 atm \times 1.5 L}{\frac{0.0821atm.L}{mol.K} \times 343 K} = 0.27 mol[/tex]
