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The speed for the reaction of Hydrochloric acid and Sodium Thiosulphate at different concentrations.
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| Submitted: Thu Jul 11 2002
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Andrew Latham 10.5 Chemistry Analysing Evidence and Conclusions We performed an experiment that gave us the speed for the reaction of Hydrochloric acid and Sodium Thiosulphate at different concentrations. The results of this are shown in graph A. From this graph (reaction time against concentration), we can see that there is a negative correlation, which means that as the concentration of the sodium Thiosulphate increases, the time for the reaction to finish decreases. Furthermore, we can see that the graph curves, in an inverse box, which means that as the concentration of Thiosulphate increases, the difference between the results becomes smaller. This means that eventually the reaction will go no faster, despite the high concentration of one of the reagents. This is because the highest number of possible successful collisions is occurring simultaneously, in other words, all the particles of one of the reagents are in collision, and so no more collisions can occur at...
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