An investigation into the effect of concentration on the times of a reaction

Authors Avatar

Tom Dean

10B2

Mrs Hopkinson

An investigation into the effect of concentration on the times of a reaction

I am going to do an experiment which will be trying to digest starch using different concentrations of amylase starting from 1% up to 5% doing the experiment for each and recording the results.

Input variables in this investigation I could study are the following:

  • The temperature that the experiment is done at.
  • The different volumes of the Amylase and Starch.
  • The concentrations of the Amylase and Starch.

The input variable I have chosen is the different concentrations of the Amylase and Starch.

What I think will happen is that as the concentrations increase so will the rate of the reaction.

I think this will happen because of the collision theory this states that as the concentration increases the particles become closer together so therefore as the particles vibrate they will have greater chance of collision. This will lead to the rate of reaction increasing because there will be more successful collisions which will lead to reactions.

Join now!

The input variable I am going to change is the concentration of the Amylase. The variables I must keep the same are: -

  • The temperature that the experiment is done at.
  • The different volumes of the Amylase and Starch.

The output variable I am going to measure is the time, which it takes for the reaction to occur to a certain point.

Diagram

Apparatus

2 test tubes, 2 peppiest, safety mat, test tube rack, testing tray, spotting tiles, stop clock, thermometer.

I am going to repeat the ...

This is a preview of the whole essay