This question provides you with some experimental data for the experiment and asks you to plot these results in Excel to identify the rate order for one reagent (as you did in the lab).

Using the data in the table provided and the steps below, calculate the rate order with respect to starch.

To calculate reaction rate:

1. Calculate the number of moles of S₂O₃^2- and subsequently the number of moles of I₂ that reacted. Use the information in the lab manual for the initial experiment for these calculations.

2. Calculate reaction rate in mol/s with respect to I₂.

3. Plot the concentration of starch (keep the concentration in %) on the x-axis and the reaction rate on the y-axis.

From there the rate order with respect to starch can be determined.