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The rate of reaction between sodium thiosulphate and hydrochloric acid
Member rating: No Rating | Words: | Submitted: Wed Dec 07 2005
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Rates of Reaction Investigation PLAN Aim: An investigation to find the effect of changing the concentration on the rate of reaction between sodium thiosulphate and hydrochloric acid. Safety Precautions * Tie hair back * Wear goggles at all times * Be careful when using the chemicals * Do not run * Do not sit down during experiment * Tuck in bags and stools. Fair Test To make the experiment a fair test, it must be carried out by: * Using the same equipment each time * Keeping a control to determine whether the experiments have worked correctly * Making sure all of the independent variables are controlled, except ONE which is changed * Make sure the stopwatch is always started at the same time for each test * The temperature should be the same for each test done Prediction I think that the higher the concentration of sodium thiosulphate solution, the quicker the cross will disappear. This means that the graph will have positive correlation. This is explained by...
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