Question

Given the electrode potentials
Fe³⁺ + e⁻ → Fe²⁺, E° = 0.771 volts
I₂ + 2e⁻ → 2I⁻, E° = 0.536 volts
E°꜀ₑₗₗ for the cell reaction
2Fe³⁺ + 2I⁻ → 2Fe²⁺ + I₂, is
(a) 1.006 V (b) 0.503 V
(c) 0.235 V (d) –0.235 V

Answer 1

Explanation:

Given the electrode potentials

Fe³⁺ + e⁻ → Fe²⁺, E° = 0.771 volts

I₂ + 2e⁻ → 2I⁻, E° = 0.536 volts

E°꜀ₑₗₗ for the cell reaction

2Fe³⁺ + 2I⁻ → 2Fe²⁺ + I₂, is

(a) 1.006

(b) 0.503 V✔️✔️

(c) 0.235 V

(d) –0.235 V

Answer 2

$\huge{\underline{\mathbb{\red{Answer}}}}$

(b) 0.503 V

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