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Find out if the concentrate of the sodium thiosulphate affects the rate of the reaction when mixed with hydrochloric acid.
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| Submitted: Mon Jan 12 2004
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Page 1 Rebecca Lambert-Williams Science coursework Aim; I am going to find out if the concentrate of the sodium thiosulphate affects the rate of the reaction when mixed with hydrochloric acid. Reaction sodium thiosulphate + Hydrochloric acid ==> sodium chloride + water + sulpher dioxide + sulpher Safety * Must stand up during the experiment * Keep stools in a safe position away from the experiment. * Keep bags in a safe position away from the experiment. * No messing about or running * Clean up all spillages * Always wear eye protection Fair Test I will make my experiment a fair test by; * The same person saying when to stop the timer * The same person measuring out the liquids * The same person washing the equipment * The same person timing the experiment * The same person mixing the mixture Equipment * Pipette * Measuring cylinder * Conical flask * Paper with an X on it * Stop clock * Distilled water * Sodium thiosulphate * Hydrochloric acid Prediction I predict that...
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