5 H2O2 (aq) + 2 MnO4 - (aq) + 6 H+ (aq) → 2 Mn 2+ (aq) + 8 H2O (l) + 5 O2 (g) . In a titration experiment, H2O2 (aq) reacts with aqueous MnO4 - (aq) as represented by the equation above. The dark purple KMnO4 solution is added from a buret to a colorless, acidified solution of H2O2 (aq) in an Erlenmeyer flask. (Note: Ath the end point of the titration, the solution is a pale pink color.)