Sour Acids and Bitter Bases

Acids are materials that can release a proton and bases are materials that can accept a proton. This tendency to release or accept a proton is measured based on the concentration of H and OH ions. These characteristics can also be observed using additive substances called indicators which change color based on the acidity / basicity of the environment. Cabbage juice is a natural indicator. In this experiment, the change in color of cabbage juice when added to different substances is observed. Furthermore, HCl and NaOH are used to conduct a titration and the change in acidity of the environment is seen as change in the color of phenolphthalein indicator added to the solution.

• Categories: VRLab Academy Junior