Lab9 Report

Kinetics of the Iodine Clock Reaction 29 March 2023 CHEM 1212K Laboratory Data and Results Table 1. Initial conditions, temperatures, and average rates of consumption of ascorbic acid for trials 1 – 6 of the iodine clock reaction. Trial [I – ] i (M) [H 2 O 2 ] i (M) Temperature (K) 1 0.111 0.196 2.93E+02 2 0.111 0.098 2.93E+02 3 0.056 0.196 2.93E+02 4 0.111 0.196 3.13E+02 5 0.111 0.196 3.23E+02 6 0.111 0.196 3.33E+02 –Δ[H 2 C 6 H 6 O 6 ]/Δ t (M/s) 2.97E-04 1.32E-04 1.66E-04 1.30E-03 1.20E-03 1.60E-03 Table 2. Absolute temperatures and rate constants for trials of the iodine clock reaction differing only in temperature. Trial k (1/M 1/s) 1/Temperature (1/K) ln k 1 0.0136 3.411E-03 -4.298 4 0.0598 3.193E-03 -2.817 5 0.0551 3.095E-03 -2.899 6 0.0735 3.002E-03 -2.610