A standard galvanic cell is constructed by coupling a standard copper electrode and a standard magnesium electrode. The measured standard cell potential () is . If the standard reduction potential of

Question

A standard galvanic cell is constructed by coupling a standard copper electrode and a standard magnesium electrode. The measured standard cell potential ($E^\circ_{cell}$) is $2.70	ext{ V}$. If the standard reduction potential of the copper electrode is $+0.34	ext{ V}$, what is the standard reduction potential (in Volts) of the magnesium electrode?

Prashant Kotian · Accepted Answer

Correct answer: -2.36. Magnesium is highly reactive and acts as the anode, while Copper acts as the cathode. The standard cell potential is given by . Substituting the known values: .

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