To check how the rate of transpiration is affected by a change in the PH of the soil/water.
Aim
To check how the rate of transpiration is affected by a change in the PH of the soil/water.
Apparatus
1.) Hydrilla plant
2.) Test tubes
3.) Paraffin wax
4.) Beaker
5.) NaOH pellets
6.) HCl
7.) PH Paper
8.) Distilled water
9.) Stirrer
10.) Scissors
Procedure
- Prepare NaOH solution. Put a few pellets of NaOH in a beaker containing distilled water and stir until the pellets dissolve. This is the dil.NaOH which has a PH of 14. This is checked using the PH paper.
- Prepare dil. HCl. Take a beaker containing distilled water and pour 1-2 drops of HCl into it and stir. This gives dil.HCl which when checked with the PH paper gives PH value 1.
- Take 5 test tubes labeled a, b, c, d and e.