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'How does the concentration of Sodium thiosulphate solution affect the rate of its reaction with hydrochloric acid?'
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'How does the concentration of Sodium thiosulphate solution affect the rate of its reaction with hydrochloric acid?' Aim I shall investigate how the concentration of Sodium thiosulphate solution affects the rate of its reaction with hydrochloric acid. I shall add water to the sodium thiosulphate solution to weaken the concentration so I can see how concentration can affect the rate of reaction. I shall add water as that is the only way I can find out how concentration affects the rate of reaction as I cannot increase concentration from 1M upwards as I do not have the resources available to use. Prediction I predict that when I add more water to the sodium thiosulphate solution, the time it takes for the cross to disappear will lengthen. I predict this because, for particles to react they must collide with each other. If there is a higher concentration of sodium thiosulphate particles in a given volume there...
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