Consider the following balanced chemical equation: H2O2 (aq) + 3 I-(aq) + 2 H+(aq) I3- (aq) + 2 H2O (l) In the first 45.5 seconds of the reaction, the concentration of H2O2 decreased from 1.64 M to 0.45 M. What is the average reaction rate over this time interval (in mol L-1 s-1)?

Express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4"