ELECTROCHEMISTRY FINAL EXAM WITH COMPLETE SOLUTIONS
100% VERIFIED 2025-2026!!
Electrochemistry - ANSWER>>branch of science that deals with changes of a chemical
system induced by the passage of electrons/current or conversion of electrical energy
What are the two types of Electrochemical Systems? - ANSWER>>Galvanic and
Electrolytic
Galvanic - ANSWER>>cathode and anode, spontaneous redox rxns, chemical energy
into electricity, <0 delta G, >0 E
What is an example of a Galvanic Cell? - ANSWER>>Batteries
Electrolytic - ANSWER>>half cells on WE, non-spontaneous e- transfer at
electrode-electrolyte solution interfaces, electrical E needed to activate chem
conversion
Potentiometry - ANSWER>>measurement of electrical potential, titration via indicator
electrode and reference electrode and measured using a high impedance voltmeter
How is Potentiometry used? - ANSWER>>it is useful in characterizing an acid
Coulometry - ANSWER>>measures the quantity of matter transformed during an
electrolysis reaction by determining the amount of electricity consumed or produced
What is the two types of Coulometry? - ANSWER>>Controlled potential and controlled
current
, To what is Coulometry applied? - ANSWER>>precision measurements of charge
What formula is associated with Coulometry? - ANSWER>>Faraday's Law
Amperometry - ANSWER>>Current is measured in an electrochemical cell when a
constant voltage is applied, as a function of time or electrode potential - typically
independent
How is Amperometry useful? - ANSWER>>determination of metal ion present in
aqueous solution
Voltammetry - ANSWER>>a constant or varying potential is applied at the surface of an
electrode
What does Voltammetry consist of? - ANSWER>>the combination of voltage (applied to
an electrolytic cell consisting of 2-3 electrodes dipped in solution) with amperometry (ie.
with measurement of electric current flowing through a cell)
What is Voltammetry used for? - ANSWER>>to detect chemicals capable of undergoing
oxidation reactions
Working Electrode - ANSWER>>solution interface, contains diffusion, migration, and
convection
Double-Layer Theory - ANSWER>>Electrode-Electrolyte Interface; surface charge is
neutralized by opposite sign counterions placed at an increment of d away from the
surface.
Oxidation occurs at the: - ANSWER>>Anode
100% VERIFIED 2025-2026!!
Electrochemistry - ANSWER>>branch of science that deals with changes of a chemical
system induced by the passage of electrons/current or conversion of electrical energy
What are the two types of Electrochemical Systems? - ANSWER>>Galvanic and
Electrolytic
Galvanic - ANSWER>>cathode and anode, spontaneous redox rxns, chemical energy
into electricity, <0 delta G, >0 E
What is an example of a Galvanic Cell? - ANSWER>>Batteries
Electrolytic - ANSWER>>half cells on WE, non-spontaneous e- transfer at
electrode-electrolyte solution interfaces, electrical E needed to activate chem
conversion
Potentiometry - ANSWER>>measurement of electrical potential, titration via indicator
electrode and reference electrode and measured using a high impedance voltmeter
How is Potentiometry used? - ANSWER>>it is useful in characterizing an acid
Coulometry - ANSWER>>measures the quantity of matter transformed during an
electrolysis reaction by determining the amount of electricity consumed or produced
What is the two types of Coulometry? - ANSWER>>Controlled potential and controlled
current
, To what is Coulometry applied? - ANSWER>>precision measurements of charge
What formula is associated with Coulometry? - ANSWER>>Faraday's Law
Amperometry - ANSWER>>Current is measured in an electrochemical cell when a
constant voltage is applied, as a function of time or electrode potential - typically
independent
How is Amperometry useful? - ANSWER>>determination of metal ion present in
aqueous solution
Voltammetry - ANSWER>>a constant or varying potential is applied at the surface of an
electrode
What does Voltammetry consist of? - ANSWER>>the combination of voltage (applied to
an electrolytic cell consisting of 2-3 electrodes dipped in solution) with amperometry (ie.
with measurement of electric current flowing through a cell)
What is Voltammetry used for? - ANSWER>>to detect chemicals capable of undergoing
oxidation reactions
Working Electrode - ANSWER>>solution interface, contains diffusion, migration, and
convection
Double-Layer Theory - ANSWER>>Electrode-Electrolyte Interface; surface charge is
neutralized by opposite sign counterions placed at an increment of d away from the
surface.
Oxidation occurs at the: - ANSWER>>Anode
