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The Effect of Temperature on the Rate of Reaction Between Thiosulfate Ions and HCl Acid
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The Effect of Temperature on the Rate of Reaction Between Thiosulfate Ions and HCl Acid Aim: To test the hypothesis that the reaction rate between thiosulfate ions and HCl acid will increase as the temperature of the solution increases. Introduction: Thiosulfate ions will react with the hydrogen ions of the HCl acid to form a fine precipitate of sulfur and an opaque solution of H2SO3. The end point of the reaction occurs when the clear Na2S2O3 solution becomes completely opaque, obscuring the view of anything beyond the test tube. This is shown in the balanced equation below: S2O32- (aq) + 2H+(aq) H2SO3 (aq) + S(s) Generally, products are formed from the reactants as a result of the breaking of 'old' bonds and to form 'new' ones through the absorption and release of energy. This is explained by the kinetic theory of matter. The theory states that products are formed when the collisions of the reactant...
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