O ELECTROCHEMISTRY Designing a galvanic cell from two half-reactions OODV3 A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential E°--0.763 V half-reaction Zn" (aq)+2e Zn(s) red |Cro (aq)+4H,0(1)+3e™ - Cr(OH),(s)+5OH (aq) E°=-0.13 V red Answer the following questions about this cell. Write a balanced equation for the half-reaction that O happens at the cathode. Write a balanced equation for the half-reaction that O happens at the anode. ? Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written.
O ELECTROCHEMISTRY Designing a galvanic cell from two half-reactions OODV3 A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential E°--0.763 V half-reaction Zn" (aq)+2e Zn(s) red |Cro (aq)+4H,0(1)+3e™ - Cr(OH),(s)+5OH (aq) E°=-0.13 V red Answer the following questions about this cell. Write a balanced equation for the half-reaction that O happens at the cathode. Write a balanced equation for the half-reaction that O happens at the anode. ? Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written.
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 76AP
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