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Investigating how the concentration of thiosulphate solution affects the rate of reaction. Aim: My aim is to investigate how different concentrations of sodium thiosulphate solution affect the rate of reaction. Hypothesis: As you increase the concentration (molarity), the rate of reaction will increase. I think this because a high concentration means a large number of particles in a given volume. If there are more particles and the activation energy is right, then there will be more collisions. More collisions mean a large number of successful collisions. Therefore the rate of reaction will increase. Introduction: In this investigation I am going to carry out an experiment to determine the effects of different concentrations of thiosulphate solution on the rate of reaction. I will do this experiment using the following formula: Na2S2O3 + 2HCl 2NaCl (aq) + H2O + SO3 + S(s) I will only change the concentration of the sodium thiosulphate solution to see if...

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