Hi guys sorta stuck with this part B of my Chemistry Pract question. \" Write th

Question

Hi guys sorta stuck with this part B of my Chemistry Pract question. " Write the appropriate oxidation and reduction half-equations for the reactions occurring at each electrode.

and also this " What is the function of the sodium chloride in the indicator solution ".

As for the Agar solution " To generate the ferroxyl indicator solution, add about 10 drops of 0.1 M potassium ferricyanide solution, 1 mL of 4 M sodium chloride, NaCI, and 10 drops of 0.1% phenolphthalein indicator.

Any help will be appreciated Thanks.

Explanation / Answer

1. At anode -

Fe(s) = Fe2+(aq) + 2e-

2. At cathode -

Cu2+(aq) = Cu(s) + 2e-

3.

At anode -

Cus) = Cu2+(aq) + 2e-

At cathode -

Cu2+(aq) = Cu(s) + 2e-

4.

At anode -

Cus) = Cu2+(aq) + 2e-

At cathode -

Zn2+(aq) = Zn(s) + 2e-

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