0ºControlled potential coulometry at a large platinum electrode is used to determine the amount of ferricyanide in a solution at 25 °C. © Macmillan Learning How much more negative than the standard reduction potential (E°) of ferricyanide must the electrode potential be so that 99.9% of the ferricyanide, [Fe(CN)6]³-, is reduced to ferrocyanide, [Fe(CN)6]? E- E° = The total charge passed through a 70.0 mL solution of unknown ferricyanide concentration is 22.58 C. Calculate the concentration of ferricyanide in the solution. [Fe(CN)6] concentration: V Σ

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0ºControlled potential coulometry at a large platinum electrode is used to determine the amount of ferricyanide in a solution at
25 °C.
© Macmillan Learning
How much more negative than the standard reduction potential (E°) of ferricyanide must the electrode potential be so that
99.9% of the ferricyanide, [Fe(CN)6]³-, is reduced to ferrocyanide, [Fe(CN)6]?
E- E° =
The total charge passed through a 70.0 mL solution of unknown ferricyanide concentration is 22.58 C. Calculate the
concentration of ferricyanide in the solution.
[Fe(CN)6] concentration:
V
Σ
Transcribed Image Text:0ºControlled potential coulometry at a large platinum electrode is used to determine the amount of ferricyanide in a solution at 25 °C. © Macmillan Learning How much more negative than the standard reduction potential (E°) of ferricyanide must the electrode potential be so that 99.9% of the ferricyanide, [Fe(CN)6]³-, is reduced to ferrocyanide, [Fe(CN)6]? E- E° = The total charge passed through a 70.0 mL solution of unknown ferricyanide concentration is 22.58 C. Calculate the concentration of ferricyanide in the solution. [Fe(CN)6] concentration: V Σ
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