In a galvanic cell composed of a half-cell and a half-cell

CHEMISTRY · Single correct · A Level · Chemistry · Electrode potentials · Electrode potentials

Problem

In a galvanic cell composed of a Zn(s)∣Zn2+(aq)Zn(s)|Zn^{2+}(aq) half-cell and a Cu(s)∣Cu2+(aq)Cu(s)|Cu^{2+}(aq) half-cell, a salt bridge containing 1.0 M1.0\,\text{M} KNO3KNO_{3} connects the two compartments. Electrons flow spontaneously from zinc to copper. Which ion migrates through the salt bridge toward the copper electrode? (a) Cu2+Cu^{2+} (b) K+K^{+} (c) NO3−NO_{3}^{-} (d) Zn2+Zn^{2+}

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