The document defines molarity as moles of solute per liter of solution. It provides examples of calculating molarity from moles of solute and volume. It also includes examples of calculating moles of solute given molarity and volume, and mass of solute needed to make a solution with a given molarity and volume.

1. Measuring Concentration Molarity

13. Stomach acid is a 0.10 M HCl solution. How many moles of HCl are in 1500 mL of stomach acid solution? 1500 mL x 1 L = 1.5 L 1000 mL 1.5 L x 0.10 mole HCl = 0.15 mole HCl 1 L

20. Stomach acid is a 0.10 M HCl solution. How many moles of HCl are in 1500 mL of stomach acid solution? 1500 mL x 1 L = 1.5 L 1000 mL 1.5 L x 0.10 mole HCl = 0.15 mole HCl 1 L