Science Rate Of Reaction

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Aim: to investigate the effects of concentration, on the rate of reaction, between hydrochloric acid and sodium thiosulphate

Scientific Knowledge: 

Sodium                   Hydrochloric            Sodium        sulphur          water    sulphur

Thiosulphate                  acid                  chloride        dioxide

Na2s2o3                    2hcl                     2nocl              s              so2             h2o

The collision theory believes that as the kinetic energy of particles increase so does the rate of reaction.

Activation energy is the level of energy needed for a successful reaction to take place. For example the chemical reaction between methane and oxygen doesn't occur at room temperature but when heated they react.

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The reason for this is that some substances have extremely strong bonds which need more energy to break whilst others have weaker bonds which take less energy to collapse.

The effects of surface area:

       

 

                                   

The effects of concentration:

The effects of temperature:

2mph

25mph

In order to calculate the ...

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This is a fairly well written laboratory report. It covers some of the major factors associated with this type of investigation. Its main limitation is its brief conclusion and evaluation. There are more specific strengths and improvements suggested throughout.