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(a) At what cathode potential will Sb(s) deposition commence from 0.010 M SbO solution
Chapter 16, Problem 16-B(choose chapter or problem)
(a) At what cathode potential will Sb(s) deposition commence from \(0.010 \ \mathrm{M} \ \mathrm{SbO}^{+}\) solution at pH 0.00? Express this potential versus S.H.E. and versus Ag | AgCl.
\(\mathrm{SbO}^{+}+2 \mathrm{H}^{+}+3 \mathrm{e}^{-} \rightleftharpoons \mathrm{Sb}(s)+\mathrm{H}_{2} \mathrm{O} \quad E^{\circ}=0.208 \mathrm{~V}\)
(b) What percentage of \(0.10 \ \mathrm{M} \ \mathrm{Cu}^{2+}\) could be reduced electrolytically to Cu(s) before \(0.010 \ \mathrm{M} \ \mathrm{SbO}^{+}\) in the same solution begins to be reduced at pH 0.00?
Questions & Answers
QUESTION:
(a) At what cathode potential will Sb(s) deposition commence from \(0.010 \ \mathrm{M} \ \mathrm{SbO}^{+}\) solution at pH 0.00? Express this potential versus S.H.E. and versus Ag | AgCl.
\(\mathrm{SbO}^{+}+2 \mathrm{H}^{+}+3 \mathrm{e}^{-} \rightleftharpoons \mathrm{Sb}(s)+\mathrm{H}_{2} \mathrm{O} \quad E^{\circ}=0.208 \mathrm{~V}\)
(b) What percentage of \(0.10 \ \mathrm{M} \ \mathrm{Cu}^{2+}\) could be reduced electrolytically to Cu(s) before \(0.010 \ \mathrm{M} \ \mathrm{SbO}^{+}\) in the same solution begins to be reduced at pH 0.00?
ANSWER:Step 1 of 3
Given that:
\(E^{\circ}=0.208 V\)
\(\left[\mathrm{SbO}^{+}\right]=0.01 \mathrm{M}\)
And, pH = 0
The balanced equation is:
\(\mathrm{SbO}^{+}+2 \mathrm{H}^{+}+3 e^{-} \rightleftharpoons \mathrm{Sb}(s)+\mathrm{H}_{2} \mathrm{O}\)