http://chemclass4spm.blogspot.com

http://chemclass4spm.blogspot.com

HOW TO SOLVE ELECTROCHEMISTRY PROBLEM

1st Step Label battery terminal and electrode

(anode & cathode)

2nd Step Check TYPE of ELECTRODE

3rd Step If Carbon/Graphite electrodes, Check formula electrolytes, is

there any "Cl, Br, I" in it

3rd Step If Cu/Ag, then it is

Factor of types of electrodes

4th Step If there is "Cl, Br, I" in it, check the concentration.

4th Step If the "Cl, Br, I" is not in it,

then it is factor of position of ions in

ECS

5th Step If Conc. > 0.01 mol dm-3, then

it is factor of concentration of electrolytes

5th Step If Conc. < 0.01 mol dm-3, then it is factor of position of ions in

ECS

ECS CATION ANION K+ F- Na+ SO4

2- Ca2+ NO3

- Mg2+ Cl- Al3+ Br- Zn2+ I- Fe2+ OH- Sn2+

Pb2+

H+

Cu2+

Ag+