Find out whether the reaction between Sodium Thiosulphate and Hydrochloric acid stays the same, increases or decreases when the temperature for both of the components is increased.

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Task Set: I am going to try and find out whether the reaction between Sodium Thiosulphate and Hydrochloric acid stays the same, increases or decreases when the temperature for both of the components is increased.

Prediction: I predict that as the 2 components are heated the reaction will get quicker in time until a certain point. When the liquids reach a certain temperature the liquids will be too hot to make a reaction and there will be no reaction.

Apparatus: for my experiment I will need:

  • Bench Mat
  • 2 Thermometers
  • 1 Measuring Cylinder (25cm³)
  • 30cm of Sodium Thiosulphate
  • 30cm of Hydrochloric Acid
  • 2 beakers
  • X mat
  • Water Bath
  • Ice Box with cold water
  • Stop watch
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Apparatus Set up:

X card    Bench Mat      Measuring Cylinders               Water Bath    Thiosulphate        H2SO4

Method: 

  • The first thing we need to do is to collect all of the equipment and set it up like in the diagram.
  • Make sure that the heating or cooling element is at the right temperature for example make sure the water bath is at the correct temperature and that the ice bath is as close to freezing as possible.
  • Pour ...

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