Pre-Laboratory Assignment Points: /15 1. List four factors on which the rates of reaction depend. 2. A student mixed the following reactants, using the general procedure for the experiment: 10.0 mL of 0.10 M KI, 10.0 mL of 0.0010 M Na2S2O3, 20.0 mL of 0.040 M KBrO3, and 10.0 mL of 0.10 M HCl. It took about 75 seconds for the mixture to turn blue. Calculate the concentrations of each reactant in the mixture after all solutions are mixed.