It is desired to separate silver in a solution that is 0.0481 M BiO*, 0.119 M Cu2+, 0.0916 M Ag*, and 0.500 M HCIO, by controlled-potential electrolysis. Ag+(aq) +1e –→ Ag(s) E = 0.799 V Cu²+ +2e¯ → Cu(s) E = 0.337 V Bio* (aq) + 2 H* (aq) + 3e¯ → Bi(s) + H,O(1) E = 0.320 V Between what cell potentials can silver be quantitatively removed from the solution without also removing one of the othe ions using controlled-potential electrolysis? Use 1.00 x 10-6 M as the criterion for quantitative removal. Report all cell potentials versus Ag|AGCI (E = 0.197 V). List the higher (more positive) potential first. between Ecell V and Ecell %3D %3D

Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
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Chapter24: Coulometry
Section: Chapter Questions
Problem 24.4QAP: Halide ions can he deposited at a silver anode, the reaction being Ag(s) + X- AgX(s) +e- Suppose...
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It is desired to separate silver in a solution that is 0.0481 M BiOt, 0.119 M Cu2+, 0.0916 M Ag+, and 0.500 M HCIO, by
controlled-potential electrolysis.
Ag+(aq) +1e –→ Ag(s)
E = 0.799 V
Cu?+ +2e –→ Cu(s)
E'
0.337 V
BiO (aq) + 2 H*(aq) +3e → Bi(s) + H,O(I)
E = 0.320 V
Between what cell potentials can silver be quantitatively removed from the solution without also removing one of the othe
ions using controlled-potential electrolysis? Use 1.00 x 10-6 M as the criterion for quantitative removal. Report all cell
potentials versus Ag|AGCI (E = 0.197 V). List the higher (more positive) potential first.
between
Ecell =
V
and
Escil =
V
Transcribed Image Text:It is desired to separate silver in a solution that is 0.0481 M BiOt, 0.119 M Cu2+, 0.0916 M Ag+, and 0.500 M HCIO, by controlled-potential electrolysis. Ag+(aq) +1e –→ Ag(s) E = 0.799 V Cu?+ +2e –→ Cu(s) E' 0.337 V BiO (aq) + 2 H*(aq) +3e → Bi(s) + H,O(I) E = 0.320 V Between what cell potentials can silver be quantitatively removed from the solution without also removing one of the othe ions using controlled-potential electrolysis? Use 1.00 x 10-6 M as the criterion for quantitative removal. Report all cell potentials versus Ag|AGCI (E = 0.197 V). List the higher (more positive) potential first. between Ecell = V and Escil = V
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