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How does changing the Concentration of Sodium thiosulphate affect how fast it reacts with an acid?
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How does changing the Concentration of Sodium thiosulphate affect how fast it reacts with an acid? Introduction: The purpose of this investigation is to determine, how the rate of the reaction changes when sodium thiosulphate [Na2S2O3] is mixed with hydrochloric acid [HCl] at different concentration. Prediction: The collision theory states that, the higher the concentration and if the volume of a solution stays constant; then the probability of collisions within the solution between particles will be higher than a lower concentrated solution with the same volume. The amount of particles in a concentrated solution will be greater so therefore, the probability of collisions occurring will be greater. In addition, the probability of successful collisions also increases proportionally if the concentration is increased at the same rate. E.g. Therefore, after considering collision theory involving the concentration of substances I can predict that the rate of the reaction between sodium thiosulphate [Na2S2O3] and hydrochloric acid [HCl] will...
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