if 23.1g of O2 occupies a volume of 5.0L at a particular temperature and pressure, what volume will 2.50g of Oxygen gas occupy under the same conditions?

0.54 L

Explanation:

First we convert the given masses of O₂ into moles, using its molar mass:

Then we can solve the problem using Avogadro's law, which states:

Where:

We input the data:

And solve for V₂:

the answer is c.the valence of the atoms combine .