Molarity can be defined as the number of moles of substance dissolved in 1 L of solution. In the given question , number of LiOH moles - 1.495 mol Dissolved volume - 750 mL molarity is calculated for 1 L = 1000 mL In 750 mL - 1.495 mol of LiOH is dissolved Therefore in 1000 mL - 1.495 mol / 750 mL x 1000 = 1.99 mol