Yasin Akbar Memon
GCSE Science
Experiment: The effects of concentration on the rates of reaction
AIM: I am investigating the effects of the change in the concentration of a chemical on the rate of reaction
PREDICTION: I predict that by increasing the amount of thiosulphate this will speed up the rate of reaction between the chemical and the acid.
BACKGROUND THEORY
There are many ways in which to effect the speed in the rate of reaction. These include:
- Temperature – By increasing the temperature the faster the particle moves and the more collisions occur and this speeds up the rate of reaction. We will need to take into consideration the effect of temperature on the liquids and how this may effect the reaction.
- Surface area – There are more particles that are able to react and therefore an increase in the surface area leads to a increase in the rate of reaction. However, we are not taking this in consideration as we doing with liquids.
- Concentration – The higher the concentration the more collisions that occur and the faster the reaction. This is the area we are looking in this experiment to determine whether the rate of reaction increases or not.
- Catalyst – By introducing a catalyst this will increase the rate of reaction. This is not even an element using in this experiment.