How Concentration Affects The Rate Of Reaction Between Sodium Thiosulphate And Hydrochloric Acid

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How Concentration Affects The Rate Of Reaction Between Sodium Thiosulphate And Hydrochloric Acid

 The rate of reaction is a measure of the change, which happens during a reaction in a single unit of time. The things that affect the rate of reaction are as follows:

·  Surface area of the reactants                                                    · Concentration of the reactants                                                                 · The temperature at which the reaction is carried out                                                                 · Light                                                                                          · Use of a catalyst                                                        The factor that we are using is Concentration of the reactants.

Introduction: In this experiment I am going to find out how the rate of reaction between Sodium Thiosulphate and hydrochloric acid is affected by changing the concentration.

       The equation to this is as follows:

    Sodium        +Hydrochloric = Sodium     +Sulphur +Sulphur +water

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Thiosulphate             Acid           Chloride                      Dioxide

Na2S2O3 (aq)  +2HCL (aq) = 2NaCl (aq) + S(s)     +SO2 (g)   + H20 (l)

Aim: We did 6 experiments to find out how the rate of reaction changes with differing concentrations of Sodium Thiosulphate, Hydrochloric Acid and water. As an inert and stable liquid, water was used to alter concentration of Sodium Thiosulphate without changing the end amount of solution. All the atoms in a water molecule have a full outer shell, so they would not react with the other chemicals. 

Prediction: I predict that the rate of reaction will increase (and get more cloudy, ...

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