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Determination of the equilibrium constant for an Esterification reaction Evaluation of the Experiment (Skill E) Overall, I feel that the accuracy of the result was quite good. Because the equilibrium constant is a constant, the value of Kc should be the same for each experiment. All of the Kc values calculated for the four experiments came to approximately 6 (no units). The results are summarised below. INITIAL VOLUMES (in cm3) Experiment Ethanoic acid Ethanol Ester Water Kc 1 75 75 75 25 3.07 2 75 75 0 100 6.36 3 35 0 35 180 6.47 4 0 75 75 100 6.15 We can see from these results that although the value of Kc is roughly the same for all of them it is quite small for experiment one. I believe that this is an anomalous result. There were two main areas of limitation in this experiment. The first concerns the fact that the temperature of the experiment was not reliably regulated. Kc is not affected by a change in concentrations because the concentrations at equilibrium will always remain in the same proportions so...

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