I am new to chemistry. Taking a Biology course and teacher has us mix a solution of 15mL H2O2, 5 mL H2O and 10 mL catalase. At 6 time intervals we added the solution above to 10 mL H2SO4 (6 different beakers). We then titrated KMnO4 to determine baseline. My hypothesis was that as time progresses the catalase will have less effect on the H2O2 because of feedback inhibition. I failed during lab to understand the results of the titration. My results per increasing time interval were as follows: .12 mL, .16 mL, .4 mL, .4 mL, .44 mL, .56 mL.
It seems to me to be backwards from what expected in the hypothesis. I.E. I expected to use more KMnO4 in sorter time intervals as the catalse worked on the H2O2. What am I missing here?