?The standard reduction potentials of the following half reactions are given in Appendix E: \(\mathrm{Ag}^{+}(a q)+\mathrm{e}^{-} \quad \longr

Chapter 20, Problem 20.39

(choose chapter or problem)

The standard reduction potentials of the following half reactions are given in Appendix E:

\(\mathrm{Ag}^{+}(a q)+\mathrm{e}^{-} \quad \longrightarrow \operatorname{Ag}(s)\)

\(\mathrm{Cu}^{2+}(a q)+2 \mathrm{e}^{-} \longrightarrow \mathrm{Cu}(s)\)

\(\mathrm{Ni}^{2+}(a q)+2 \mathrm{e}^{-} \longrightarrow \mathrm{Ni}(s)\)

\(\mathrm{Cr}^{3+}(a q)+3 \mathrm{e}^{-} \longrightarrow \mathrm{Cr}(s)\)

(a) Determine which combination of these half-cell reactions leads to the cell reaction with the largest positive cell potential and calculate the value.

(b) Determine which combination of these half-cell reactions leads to the cell reaction with the smallest positive cell potential and calculate the value.

Text Transcription:

Ag+(aq) + e- \longrightarrow Ag(s)

Cu2+(aq) + 2 e- \longrightarrow Cu(s)

Ni 2+(aq) + 2 e- \longrightarrow Ni(s)

Cr3+(aq) + 3 e- \longrightarrow Cr(s)

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