Chemistry experiment to study acid-base and oxidation-reduction reactions with high school students

Abstract

The present paper is an educative innovation project and an experience of Chemistry which has been carried out by students of a high school. They have determined characteristic parameters of citrus fruits, such as acidity, sugars, vitamin C, formol index, percentage of juice and flesh. Moreover this experience has been useful for studying acids and bases, hydrolysis reactions, pH, redox processes and also for measuring the variation of juice potential with pH.