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The Determination of an Equilibrium Constant.
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The Determination of an Equilibrium Constant - Skill E During our experiment, it became clear that there were a variety of errors due to procedure that has culminated in anomalous results producing an inaccurate Kc value. There are two main sources of inaccuracies; systematic errors and equipment errors. The main sources of systematic errors were: ( i ) The amount of phenolphthalein added to the solutions ( ii ) The difficulty in judging the exact point of colour change from colourless to pink during the titration. ( iii ) The difference in judging where the bottom of the meniscus is. The systematic errors are non-quantitative; therefore it is impossible to predict the effect of the errors mathematically. But, due to the repetition of the titration, we are increasing the precision of our results, thereby decreasing the event of an error being produced. Therefore the systematic errors have a relatively insignificant role in our errors. The...
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