How did you present the data about eggplant peeling as acid base indicator?

Objective:

The objective of this experiment is to demonstrate the use of eggplant peeling as an acid-base indicator.

Materials:

* Fresh eggplant

* Knife

* Cutting board

* Various solutions with different pH levels (e.g., vinegar, lemon juice, baking soda solution, water)

* Petri dishes or small cups

* Paper towels

Procedure:

1. Peel the eggplant and cut it into thin slices.

2. Place the eggplant slices in Petri dishes or small cups.

3. Add a few drops of each solution to the eggplant slices.

4. Observe the color changes that occur in the eggplant slices.

Results:

The eggplant slices will turn different colors depending on the pH of the solution. In acidic solutions, the eggplant slices will turn red or pink. In basic solutions, the eggplant slices will turn green or blue. In neutral solutions, the eggplant slices will remain purple.

Discussion:

The color changes in the eggplant slices are caused by the anthocyanins present in the eggplant skin. Anthocyanins are natural pigments that can change color depending on the pH of their environment. In acidic solutions, anthocyanins turn red or pink, while in basic solutions, they turn green or blue.

This experiment demonstrates that eggplant peeling can be used as a simple and inexpensive acid-base indicator. It can be used to test the pH of solutions in a variety of settings, such as in the kitchen or in the laboratory.

Conclusion:

Eggplant peeling can be used as an effective acid-base indicator. It is a simple and inexpensive way to test the pH of solutions.