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To investigate the rate of the reaction between different concentrations of Hydrochloric acid and sodium thiosulphate
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Rates of Reaction Coursework. Planning Aim: To investigate the rate of the reaction between different concentrations of Hydrochloric acid and sodium thiosulphate. Method: 1. Get a piece of card which has a black cross on it and place underneath a conical flask 2. Get three measuring cylinders. Using one, measure out the amount of Hydrochloric Acid and in the other measure out the Sodium thiosulphate, in the third measure out the amount of water. 3. Once the correct amounts are measured in the measuring cylinders, put the sodium thiosulphate and water into the conical flask. 4. Make sure the stopwatch is ready and at the same time pour the acid into the conical flask as well as starting the stopwatch. 5. The observer needs to watch the reaction and stop the stopwatch as soon as the black cross on the card is not viable. 6. The results need to be recorded. This method needs to be repeated...
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