Question: feo is non stoichiometric composition with fe0.95o why?
Answer: ? The non-stoichiometry occurs because of the instability in the FeO molecule as undergo the oxidation of Fe+2 to Fe+3 effectively replacing a small portion of Fe+2 with two thirds their number of Fe+3. ... 95O or found in the form of FeO. Fe2O3 represented as Fe3O4.