How many items are contained in one mole of (a) basketballs; (b) cars; (C) boxes of cereal; (d) CO2 molecules? (Report your answer using three significant figures.)

Must be negative.substance increases

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.