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The aim of this experiment is to determine what affects the rate at which a reaction occurs between sodium thiosulphate and hydrochloric acid.
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Chemistry Coursework - Sodium Thiosulphate + Hydrochloric Acid Aim The aim of this experiment is to determine what affects the rate at which a reaction occurs between sodium thiosulphate and hydrochloric acid. I intend to find out whether (and to what degree) varying the concentration of sodium thiosulphate has any effect on the rate of reaction between these chemicals. I believe that these variables are linked, and that the concentration of sodium thiosulphate has a direct effect on the rate at which the reaction occurs. Hypothesis This is the chemical equation for the reaction: Na2 S2 O3 (aq) + 2NaCl (aq) + H20 (l) + SO2 (aq) +S (s) Concentration of a solution refers to the amount of reactant particles that have been dissolved in one unit of that solution. Therefore, the more reactant particles in a solution, the higher the concentration. As you increase the concentration of a solution, there are more reactant particles present...
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