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Investigate the factors that affect the rate of the chemical reaction between Sodium thiosulphate and Hydrochloric acid.’
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Title: `Investigate the factors that affect the rate of the chemical reaction between Sodium thiosulphate and Hydrochloric acid.' Aim: By carrying out this SC1 we are looking to see how the factors affect the rate of the chemical reaction between Sodium thiosulphate and Hydrochloric acid. There are many factors that affect this. This experiment is designed to investigate how the variation of the concentration of one of the reactants affects the rate of a reaction. This experiment is also investigating how temperature affects the rate at which the reaction takes place. Introduction & Theory: When hydrochloric acid is added to sodium thiosulphate, a precipitate of sulphur forms slowly. If the time needed for a certain amount of precipitate to form is recorded, this can be used as a measure of the rate of the reaction. A simple method of estimating when a fixed amount of sulphur has been formed...
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