Electrolysis of concentrated and dilute HCl Flashcards
1
Q
List ions formed
both for concentrated and dilute solutions
A
H+ and Cl¯ from HCl
H+ and OH‾ from water
2
Q
Conc. HCl
reactions that take place at different electrodes
A
anode: chlorine gas released
2Cl → Cl₂ + 2e¯
cathode: hydrogen gas released
2H → H₂ +2e¯
3
Q
Dil. HCl
reactions that take place at different electrodes
A
anode: oxygen is produced
4OH¯ → O₂ + H₂O + 4e¯
cathode: hydrogen gas released
2H → H₂ +2e¯
