Oxidation of Vitamin C KIO3(aq) + 6H+(aq) + 5I−(aq) → 3I2(aq) + 3H2O(l) + K+(aq) (i) C6H8O6(aq) + I2(aq) → C6H6O6(aq) + 2I−(aq) + 2H+(aq) Initial mass of ascorbic acid (g) Moles of ascorbic acid (C6H8O6) Initial volume of burette (mL) Final volume of burette (mL) Volume of KIO3 (mL) Moles of KIO3 Molarity of KIO3 solution Average molarity Show calculation set up here.