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Investigate how temperature affects the rate of reaction of sodium thiosulphate (Na2S2O3) and hydrochloric acid (2HCl).
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Chemistry Investigation Introduction The aim of this experiment is to investigate how temperature affects the rate of reaction of sodium thiosulphate (Na2S2O3) and hydrochloric acid (2HCl) Plan Apparatus I will need: * Conical flasks (they can be washed out) to hold the reaction * A piece of paper with a cross on it, so I can see when it is obscured * Bunsen Burner to heat the reactants * Tripod to support the gauze * Gauze to heat the conical flask on * 2 measuring cylinders to measure out the acid and sodium thiosulphate * Safety Glasses to protect the eyes * Stopclock to time the experiment * 2 large beakers, which will contain the reactants before they are mixed. * A thermometer to measure the temperature * 10 ml Na2S2O3 for each reading * 40ml H2O for each reading * 5ml 2HCl for each reading I will do 3 readings for every 10°C rise in temperature from 20°C to 70°C. * Therefore I will need 180ml Na2S2O3, 720ml...
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