Suggest one property of an impurity that would cause the calculated mass of FeSO4.7H2O in X to be greater than the actual mass of X?
Would anyone be able to explain the answer to this q please?
(Impurity is a) reducing agent / reacts with dichromate / impurity is a
version of FeSO4 with fewer than 7 waters (not fully hydrated)
Such that for a given mass, the impurity would react with more dichromate
than a similar mass of FeSO4.7H2O