3. Standardize the thiosulfate solution as follows: Pipet 50.00 mL of KIO3 solution into a flask. Add 2 g of solid KI and 10 mL of 0.5 M H2SO4. Immediately titrate with thiosulfate until the solution has lost almost all its color (pale yellow). Then add 2 mL of starch indicator and complete the titration. Repeat the titration with two additional 50.00 mL volumes of KIO3 solution. From the stoichiometries of Reactions 1 and 2, compute the average molarity of thiosulfate and the relative standard deviation.