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The aim of this investigation is to see how the concentration of Sodium Thiosulphate (Na2S2O3) affects the rate of reaction with Hydrochloric Acid (HCl). The reaction is a precipitate given off.
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Deepak Chandi AT1 PLANNING Aim: The aim of this investigation is to see how the concentration of Sodium Thiosulphate (Na2S2O3) affects the rate of reaction with Hydrochloric Acid (HCl). The reaction is a precipitate given off. The chemical equation is: 2HCl + Na2S2O3 2NaCl + H2O + SO2 + (S) Hydrochloric Acid + Sodium Thiosulphate Sodium Chloride + Water + Sulphur Dioxide + Precipitate (Sulphur) Method: The equipment that you would require for this experimentation is; A piece of paper with an 'x' drawn upon it by a bic biro. Conical flask. 2 measuring cylinders (25ml each). 2 pipettes. Hydrochloric Acid (HCl) Sodium Thiosulphate (Na2S2O3). 5 levels of concentration (20%, 40%, 60%, 80%, 100%) Stopwatch. I will now go through the step-by-step process of the experimentation; 1. You place your conical flask upon the 'x' 2. You measure out 25ml of Sodium Thiosulphate. 3. You measure out 25ml of Hydrochloric Acid. 4. You add the reactants together in the conical flask. 5. Once the reactants have...
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