Vitamin C (ascorbic acid) is an important component of our diet. Although vitamin C occurs naturally in many fruits and vegetables, many people take vitamin C tablets to supplement their intake

Vitamin C can undergo a redox reaction with iodine in which the vitamin C is oxidised. and the iodine molecules are reduced.

The aim of this experiment is to determine the mass of vitamin C in a tablet by carrying out a redox titration using a solution of iodine of accurately known concentration and starch solution as an indicator.

Redox Titration – pupil

Redox Titration – teacher

Redox Titration – risk assessment