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Identify the volume the gas will occupy at STP: 12.12 moles of O2

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This problem is providing us with the number of moles of oxygen in a gas sample as 12.12 mol. Thus, the volume those moles occupy is required and found to be 271.5 L.

Ideal gases

In chemistry, we study ideal gases under the assumption of no interactions among gas molecules, therefore the widely accepted equation, known as the ideal gas equation, we use to study the moles-pressure-temperature-volume relationship is:

[tex]PV=nRT[/tex]

Now, this problem gives n and asks for V at STP, which stands for standard temperature and pressure, taking the values of 273 K and 1 atm, respectively. Hence, we solve for the volume as follows:

[tex]V=\frac{nRT}{P}[/tex]

Thereafter, we plug in the numbers to obtain:

[tex]V=\frac{12.12mol*0.08206\frac{atm*L}{mol*K}*273K}{1atm}\\\\V=271.5L[/tex]

Learn more about ideal gases: brainly.com/question/8711877

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