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An investigation on the rates of reaction
Member rating: No Rating | Words: | Submitted: Sun Dec 15 2002
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An investigation on the rates of reaction I plan to carry out an experiment to investigate the rates of reaction when hydrochloric acid is added to sodium thiosulphate. The rate of reaction depends on different factors. These are the main factors: Temperature Stirring or shaking the solution Concentrations Adding a catalyst I have chosen to change the concentrations and the temperature because it will be easier to measure and the results will be more accurate. Diagram: This is the word equation for the experiment: Sodium thiosulphate + hydrochloric acid sodium chloride + sulphur dioxide + water + sulphur The symbol equation: Na S O + 2HCl 2NaCl + H O + SO +S Fair test 1: Fix: The amounts of hydrochloric acid and sodium thiosulphate used The concentration of the hydrochloric acid The temperature of the solution Measure: The time taken for the solution to become so misty the cross is no longer visible Change: The concentration of the sodium thiosulphate Fair test 2 Fix:...
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