How do you do redox titration problems?
Well you require a stoichiometrically balanced equation, which represents the redox transfer....... determination of oxalic acid by potassium permanganate is a good example.
Deep purple permanganate ion,
Charge and mass are balanced as required......
Meanwhile oxalic acid is oxidized to carbon dioxide.......
Vizualization of the endpoint is made easy by the disappearance of the colour of permanganate.... The stoichiometry follows the given equation.