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To investigate what happens when sodiumthiosulphate and hydrochloric acid are poured into the same flask.
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Investigating the Rate of Reaction Aim To investigate what happens when sodiumthiosulphate and hydrochloric acid are poured into the same flask. Plan There are many different variables that effect the rate of reaction. 1. Temperature 2. Pressure 3. Concentration of hydrochloric acid 4. Concentration of sodiumthiosulphate 5. Volume of hydrochloric acid 6. Volume of sodiumthiosulphate 7. Stirring the solution 8. Adding a catalyst The variable that will be changed is the temperature. Prediction Rate of reaction is the speed or velocity in which a chemical reaction takes place. When a solution is heated it will speed up the rate of reaction. Also once the reaction has taken place the sulphur will be precipitated. Na2S2O3(aq) + 2HCL(aq) --> S(s) + SO2(g) + 2NaCl(aq) This is because there is a (s) and a (aq) together being produced together in the end result. This means that the sulphur will be precipitated. For a reaction to take place, regent molecules must react. There has to be sufficient activation energy for this...
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