... exposed to theFe2+/Fe3+ potential-determining equilibriumandits potential accordingly disrupted.1.12Standard electrode potentialsIngeneral the Standard electrode potential (SEP)ofany ... electrochemical potentialofthe reactants mustequal the totalofthatofthe products when equilibriumisestablished,Total electrochemical potentialofreactants=Total electrochemical potentialofproductsUsing ... thepotentialofthis electrode. However, since this is the best we can possiblyachieve, the approach outlined is invariably adoptedandwhenmeasurementsofelectrode potentials ('potentiometric...