A5.00l balloon filled with 1.00 moles of o2 gas contains a total of how many liters?

To solve this we assume that the gas inside the balloon is an ideal gas and at STP. At standard temperature and pressure, it has been known that for 1 mol of a gas, the volume of this gas would be 22.4L. Therefore, the volume of O2 gas in the balloon would most likely be 22.4L.

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts