Question

A student carried out the electrolysis of a KI solution for a period of 15 minutes. He estimated that 8.5 X 10^-4 moles of OH- were produced.
- Write the two half reactions and the net reaction of the electrolysis

Answer 1

Answer:

Catod: K^(+), H2O

2H2O  + 2e^(-)  ---> H2 + 2OH^(-) reduction reaction

Anod: I^(-), H2O

2I^(-) ---> I2 + 2e^(-) oxidation reduction

2H2O + 2I^(-) ---> I2 + H2 +2OH^(-)   ionic net reaction