Electrochemical Cell

Question

The standard cell potential for the cell Zn|Zn²⁺||Cu²⁺|Cu is +1.10 V. If E°(Zn²⁺/Zn) = -0.76 V, then E°(Cu²⁺/Cu) is:

RankGuru · Accepted Answer

The standard cell potential ($E^\circ_{cell}$) is calculated using the standard reduction potentials of the cathode and anode.
- Formula: $E^\circ_{cell} = E^\circ_{cathode} - E^\circ_{anode}$
- **Given**: $E^\circ_{cell} = +1.10 	ext{ V}$, $E^\circ_{anode} 	ext{ (Zn)} = -0.76 	ext{ V}$.
- Note: Zn acts as the anode because it has a lower reduction potential.
- Calculation: $1.10 = E^\circ_{Cu^{2+}/Cu} - (-0.76)$
$E^\circ_{Cu^{2+}/Cu} = 1.10 - 0.76 = +0.34 	ext{ V}$.

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