A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Br,(1)+2e 2 Br (aq) E=+1.065 V red O,(9)+4H (aq)+4e 2 H,O(1) +1.23 V red Answer the following questions about this cell. Write a balanced equation for the half-reaction that O-0 happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written.

A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Br,(1)+2e 2 Br (aq) E=+1.065 V red O,(9)+4H (aq)+4e 2 H,O(1) +1.23 V red Answer the following questions about this cell. Write a balanced equation for the half-reaction that O-0 happens at the cathode. Write a balanced equation for the half-reaction that 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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Question

Designing a galvanic cell from two half-reactions
Write a baianced
equation for the
overall reaction
that powers the
cell. Be sure the
reaction is
spontaneous as
written.
Do you have
enough
information to
O Yes
calculate the cell
voltage under
standard
No
conditions?
If you said it was
possible to
calculate the cell
voltage, do so and
enter your answer V
here. Round your
answer to 2
significant digits.
Explanation
Check
02022 McGraw Hill LLC All Riahts Reserved.
MAR
tv

A chemist designs a galvanic cell that uses these two half-reactions:
half-reaction
standard reduction potential
Br,(1)+2e
2 Br (aq)
=+1.065 V
red
0,(9)+4H" (aq)+4e
2 H,O(1)
,= +1.23 V
red
Answer the following questions about this cell.
Write a balanced
equation for the
half-reaction that
happens at the
cathode.
Write a balanced
equation for the
half-reaction that
happens at the
anode.
Write a balanced
equation for the
overall reaction
that powers the
cell. Be sure the
reaction is
spontaneous as
written.
Explanation
Check
2022 McGraw Hill LLC. All Riahts Reserved. Ter
MAR
étv

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