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An experiment to investigate the effect of changing the concentration of hydrochloric acid on the rate of reaction with sodium thiosulpahte.
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An experiment to investigate the effect of changing the concentration of hydrochloric acid on the rate of reaction with sodium thiosulpahte. Aim I am trying to find out how the concentration of hydrochloric acid affects the reaction time with sodium thiosulpahte. If a clear solution of sodium thiosulphate is mixed with hydrochloric acid then a reaction will occur where a creamy-yellow precipitate of sulphur is produced. Reactants Products The sulphur takes a while to form and starts to turn the water cloudy after a short time. You cannot tell when the reaction has stopped so a cross drawn on a piece of paper in pencil can be sued to do this experiment. The liquid is placed on top of the cross in a beaker and it is timed how long it takes for the cross to disappear when viewed through the liquid. This experiment can be used to investigate the effects of concentration and temperature on...
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