when all the ascorbic acid in the solution has been used up, there will not be any electrons available to reduce the DCPIPH and the solution will remain pink due tothe DCPIPH. The end point is a pink colour that persists for 10 seconds or more.For the estimation of ascorbic acid, dilutions of the volume of the juice samples usedwere made. They were also acidified to remove ferric ions and protein components. Ascorbicacid solutions are susceptible to air oxidation which can be counteracted by aciditymechanism. It can be deduced from the results tabulated that both the orange juice and theapple juice had different titre values to attaining their respective endpoints.