Experiment 29 Use the experiment in the supplemental packet, not the lab manual, for this experiment CHE118

In Lab Work in groups of 4 Do one trial run with everyone participating to observe the reaction and the data acquisition (yellow to colorless, swirl constantly, be consistent) Divide the various trials among all four lab partners; exchange data CHE118

Table 1 (The only table with data) Volumes are given in the lab procedure; use a graduated cylinder to measure solutions The time for a completed trial should be written in units of seconds (whole numbers) Timers are provided in lab, or you can use your own timer CHE118

Table 2 Concentrations need to be calculated because the concentrated stock solutions are diluted when the reactants are mixed together Use the dilution equation (chapter 4 text) (Mc) (Vc) = (Md) (Vd) The rate of reaction is: rxn rate = (-)(1/1)(Δ[I2]) / (Δt) rxn rate = ([I2]) / (average t) (This is the simplified version.) CHE118

For this experiment…. Determine the exponents in the rate law equation: Rxn rate = k[acetone]m[H+]p[I2]n Determine the value of k, the rate constant, for each trial and the average k value Calculate the reaction rate by using the completed equation and trial 5 data: CHE118