Using the data in Table 1, and the fact that the total volume of the reaction mixture in each case was 100. mL, fill in the concentration columns for [I-] and [S2O82-] in Table 2. Knowing that except for zero-order reactions the rate of a chemical reaction changes over the course of the reaction, and that the average rate can be defined as the time taken for the completion of the whole experiment and is inversely proportional to the time taken (half the time means twice the rate), fill in the three columns for the average rate below. (Just take your time from Table 1 and put it under 1 ⇒ 1/time = 1/s = sec-1)