Investigating the effect of changing the concentration on the rate of reaction.

Authors Avatar

Course Work - Chemistry

Investigating the effect of changing the concentration on the rate of reaction

Plan

  I am going to investigate the effect of changing the concentration of sodium thiosulphate on the rate of reaction.

 

     sodium          hydrochloric         sodium      water     sulphur     sulphur      

thiosulphate  +         acid                    (aq)     +     (l)     +     (l)       +  dioxide

  (aq)                     (aq)                                                                         (g)        

  Na2 S2 O3     +       2HCL                2NaCl   +    H2O    +     S       +    SO2

  I have done previous work on this investigation, in class & from past preliminary work.

  In my preliminary work we have done a similar experiment, but to find out what effect temperature had on the rate of reaction between sodium thiosulphate, hydrochloric acid & water. We used this past experiment for the basis of this experiment to find out what effect concentration had on the rate of reaction.            

Join now!

                                   

Prediction

  I predict that if I increase the concentration of sodium thiosulphate the rate of reaction will increase. This is because increasing the concentration of sodium thiosulphate will increase the volume of acid particles & increase the chance or frequency of collisions between the particles & therefore increase the rate of reaction.

Diagram of particles in their state & form.

   

    Solid                                ...

This is a preview of the whole essay