Chemistry

Problem

The standard electrode potential for

\text{Zn}^{2+}(\text{aq}) + 2\text{e}^- \rightleftharpoons \text{Zn}(\text{s})

-0.76\text{ V}

and the standard electrode potential for

\text{Pb}^{2+}(\text{aq}) + 2\text{e}^- \rightleftharpoons \text{Pb}(\text{s})

-0.13\text{ V}

. a. a What does this tell you about the tendency of

\text{Zn}^{2+}

ions to gain electrons compared to that of

\text{Pb}^{2+}

ions? b. b Using your answer to part a, determine the reactions that will occur in each half-cell when the two half-cells are combined. c. c Deduce the overall redox equation. d. d State whether the zinc or lead electrode is the negative electrode.

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