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Investigating the effect of concentration on the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid
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Investigating the effect of concentration on the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid Diagram List of all apparatus used Conical flask Piece of card with black cross on Stopwatch Burettes Thermometer Method * We measured of sodium thiosulphate into a Conical flask, using burettes. I will use burettes because I can measure small amounts of sodium thiosulphate much more accurately. * Measure out of hydrochloric acid into a measuring cylinder. * Place the sodium thiosulphate into a conical flask which has been placed on a cross. * Take the temperature and then add the acid and immediately begin timing. * Look down at the cross from above. * When the cross can no longer be seen, stop the clock and note the time taken for the cross to disappear. * Wash out conical flask thoroughly. * Repeat the experiment using different concentrations of sodium thiosulphate solution * They will be made up of the following: Concentration (%) Sodium Thiosulphate (cc's) Water (cc's) 10 2 18 20 4 16 30 6 14 40 8 12 50 10 10 60 12 8 70 14 6 80 16 4 90 18 2 Fair Test * I will have...
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