Science (Chemistry)
Alexandra Heggie
Aim
I am investigating how the concentration of a solution affects the rate of reaction.
Possible Input Variables
- Temperature
- Concentration
- Surface area
- Stirring
Possible outcome variables
- Colour Change
- Any gases given off
My input variable will be: -
Concentration
My outcome variable will be: -
Colour Change
My Control Variables will be: -
- Volume of acid
- Volume of thio
- Shape of reacting vessel
- Temperature
Prediction
The more concentrated the Thio-sulphate solution the least time it takes to react.