(e) Which electrode is positively charged? (f) Which electrode increases in mass during cell operation? (g) Suggest a solution for the anode electrolyte. (h) Suggest a pair of ions for the salt bridge. i) For which electrode could you use an inactive material?

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 97AP
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question e) - i)

21.30 Consider the following voltaic cell:
Voltmeter
Zn
Со
Salt bridge
1 M Co2+
(a) In which direction do electrons flow in the external circuit?
(b) In which half-cell does reduction occur?
(c) In which half-cell do electrons leave the cell?
(d) At which electrode are electrons generated?
(e) Which electrode is positively charged?
(f) Which electrode increases in mass during cell operation?
(g) Suggest a solution for the anode electrolyte.
(h) Suggest a pair of ions for the salt bridge.
(i) For which electrode could you use an inactive material?
(i) In which direction do cations within the salt bridge move to
maintain charge neutrality?
(k) Write balanced half-reactions and an overall cell reaction.
Transcribed Image Text:21.30 Consider the following voltaic cell: Voltmeter Zn Со Salt bridge 1 M Co2+ (a) In which direction do electrons flow in the external circuit? (b) In which half-cell does reduction occur? (c) In which half-cell do electrons leave the cell? (d) At which electrode are electrons generated? (e) Which electrode is positively charged? (f) Which electrode increases in mass during cell operation? (g) Suggest a solution for the anode electrolyte. (h) Suggest a pair of ions for the salt bridge. (i) For which electrode could you use an inactive material? (i) In which direction do cations within the salt bridge move to maintain charge neutrality? (k) Write balanced half-reactions and an overall cell reaction.
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