A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential MnO (aq)+8H"(aq)+5e Mn (aq)+4H,00) 2+ E=+1.51 V %3D red Zn"(aq)+2e 2+ - Zn(s) =-0.763 V %3D red Answer the following questions about this cell.

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Chapter1: Chemical Foundations
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O ELECTROCHEMISTRY
Designing a galvanic cell from two half-reactions
A chemist designs a galvanic cell that uses these two half-reactions:
half-reaction
standard reduction potential
2+
Mno,(aq)+8H*(aq)+5e
-- Mn"(aq)+4H,00
red=+1.51 V
Zn (aq)+2e
Zn(s)
E=-0.763 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.
Do you have
enough
information to
O Yes
calculate the cell
voltage under
standard
O 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 3
significant digits.
Explanation
Check
2021 McGraw-Hill Edi
MacBook
Transcribed Image Text:O ELECTROCHEMISTRY Designing a galvanic cell from two half-reactions A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential 2+ Mno,(aq)+8H*(aq)+5e -- Mn"(aq)+4H,00 red=+1.51 V Zn (aq)+2e Zn(s) E=-0.763 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. Do you have enough information to O Yes calculate the cell voltage under standard O 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 3 significant digits. Explanation Check 2021 McGraw-Hill Edi MacBook
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