In an experience designed to find out the molar mass of an unknown ester, a student dissolves 450 mg of the unknown intro 50mL of a NaOH/EtOH solution. Subsequent to the reaction of hydrolysis is complete the solution needs 19mL of sulfuric acid, 0.5 N, to neutralize it.
When influential the normality of the NaOH/EtOH solution, 20.00mL of that same NaOH/EtOH solution was neutralized by 10.00 mL of sulfuric acid 0.5 N.
Find out the concentration of NaOH used in this reaction as well as the concentration of NaOH that was left after the hydrolysis reaction to finally find the molar mass of the ester.