Convert 123 liters to moles at STP showing your work

It's either 3 or that ,,but if not than choose 4

The correct answer is d

Particle exchange energy though elastic collision , hope this .

Molarity is moles of solute over liters of solution. idk if that is what you are talking about, but you can convert moles of solute to grams of solute using dimensional analyzes by using molar mass found on the periodic table.