Find the standard electrode potential of `I_(2)|2I^(c-)` if the equilibrium constant for the reaction `I_(2)+I^(c-) rarr_'(I_3)^(c-)` is 703. The standard electrode potential of `I_(3)^(c-)|3I^(c-)` is `0.5355V`. Also give the electrode reaction.

Explanation

To find the standard electrode potential of the half-reaction \( I_2 + 2e^- \rightarrow 2I^- \), we will use the given information about the equilibrium constant and the standard electrode potential of the \( I_3^- | 3I^- \) half-reaction.

### Step-by-Step Solution:

1. **Identify the Given Data:**
- Equilibrium constant \( K_c \) for the reaction \( I_2 + I^- \rightleftharpoons I_3^- \) is 703.
- Standard electrode potential for the half-reaction \( I_3^- + 2e^- \rightarrow 3I^- \) is \( E^\circ = 0.5355 \, V \).

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