Asample of co2 gas with 10.0 l of volume and 60.0 torr of pressure is mixed with a sample of o2 gas with 20.0 l of volume and 50.0 torr of pressure, in a large container with 30.0 l of volume. what is the final volume of o2?

The final volume of the Oxygen O2 would simply be equivalent to the overall volume of the final mixture. This is because gases would occupy every space of its container. So in this case, the volume of CO2 and O2 would be the same and it would be 30 L. What would be different is the partial pressures of each.

 30 L

Final volume of oxygen is 30.0 L

Explanation:

The volume of the gases will be equal to the volume of the container only.

The volume of container is will be the maximum volume that the two gases can acquire.

So the volume of oxygen gas is 30.0 L.

The partial pressure of gases may change as the volume of the gases decreases.

what is the question here. i think you messed up.