What products are formed at the cathode and anode during the electrolysis of the melt and sodium
| July 5, 2021 | education
What products are formed at the cathode and anode during the electrolysis of the melt and sodium chloride solution? write the equations of electrochemical reactions occurring on the electrodes, and the total equation of the reactions.
During the electrolysis of the melt:
Cathodic process: Na + + e = Na0;
Anodic process: 2Cl- – 2e = Cl20;
Overall equation: 2NaCl = 2Na + Cl2.
When electrolysis solution:
Cathodic process: Н2О + 2е = Н2 + 2ОН-;
Anodic process: 2Cl- – 2e = Cl20;
Overall equation: 2NaCl + 2H2O = H2 + 2NaOH + Cl2.
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