V × N = V × N V N N = V Normality of KMnO (link) solution (N ) = N Titration–II ( Unknown FAS) Vs (Link KMnO ) Burette is washed with water, rinsed with KMnO solution and filled with same KMnO solution up to the zero mark. Exactly ml of unknown FAS solution is pipetted out into the clean, washed conical flask. To this FAS solution approximately 20ml of 2N sulphuric acid is added. This mixture is titrated against KMnO Link solution from the burette.
KMnO is added drop wise till the appearance of permanent pale pink colour. Burette reading is noted and the same procedure is repeated to get concordant values. X organic organic - - - - Titration –II (Link KMnO )Vs ( Unknown FAS) s.no Volume of Unknown FAS (ml) Burette readings Concordant value (Volume of KMnO ) (ml) Initial (ml) Final (ml) Calculation : Volume of Unknown FAS solution V 20ml Normality of Unknown FAS solution N ? N Volume of KMnO (link) solution V ml Normality KMnO (link) solution N N According to normality equation: V × N = V × N V N N = V N = N The normality of unknown FAS solution = N Weight calculation: The amount of FAS dissolved in lit of the solution = (Normality) x (equivalent weight) The amount of FAS dissolved in ml of the solution = Normality equivalentweight Y g Report : The amount of FAS dissolved in ml of the solution g Y Y organic organic - - - -