Question

Determination of strength of ferrous sulphate using standard ferrous ammonium sulphate and potassium dicromate as intermediate solution

Answer 1

To determine the strength (in g/L) of ferrous ammonium sulphate (FeSO4, (NH4)2SO4,6H2O) by titrating it against standard (1.0 g/L ) potassium dichromate (K2Cr2O7) solution. Principle: ... In this reaction ferrous sulphate is oxidized to ferric sulphate, while, ammonium sulphate remains unreacted.