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...Unit electrogravimetry and coulometry structure introduction objectives electrogravimetric analysis polarisation types of methods constant current electrolysis potential what is a coulometer coulometric controlled amperostatic summary terminal questions answers in units we have discussed potentiometry conductometric you seen measurements are performed under conditions essentially zero this describe two important related electroanalytical the techniques which going to deal carried out long enough make sure that analyte completely oxidised or reduced single product weighed as deposit on one electrodes quantity electricity needed complete measured coulombs both quite sensitive rapid accurate these differ from sense they require significant required amount initiate electrode reaction throughout process however when there an electrochemical cell no longer difference between potentials cathode anode applied electrolytical usually greater than theoretical phenomenon ohmic ir drop will come in...