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Factors affecting the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid.
Member rating: No Rating | Words: | Submitted: Fri Feb 20 2004
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Factors affecting the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid Prediction I think the time the cross takes to disappear will decrease as the concentration of sodium thiosulphate increases. This prediction is based on the 'collision theory' and all of the results and analysis will be based on this theory. Apparatus Conical flask, measuring cylinder, stopcock, paper with cross on it, hydrochloric acid, sodium thiosulphate. Method Firstly measure 50cm of 1.0mol/dm sodium thiosulphate solution using the conical flask. Then add 5cm of 2.0mol/dm of hydrochloric acid to the flask containing the sodium thiosulphate. Then place the flask over the cross. Then start the stop clock immediately and time how long it takes for the hydrochloric acid and the sodium thiosulphate to mix. When the cross on the paper completely disappears stop the clock. Repeat the experiment again for 0.2, 0.1, 0.05, 0.025 and 0.0125. To make my experiment a fair one, I...
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