The `EMF` of a galvanic cell composed of two hydrogen electrodes is `177 mV`. If the solution at one of the electrode has `[H^(o+)]=10^(-3)`, find the `[H^(o+)]` at the other electrode.

Explanation

To solve the problem, we need to find the concentration of hydrogen ions \([H^+]\) at the second electrode of the galvanic cell, given the EMF and the concentration at the first electrode.

### Step-by-step Solution:

1. **Identify Given Values:**
- EMF of the cell, \(E_{cell} = 177 \, \text{mV} = 0.177 \, \text{V}\)
- Concentration of hydrogen ions at one electrode, \([H^+]_1 = 10^{-3} \, \text{mol/L}\)

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