A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential MnO, (aq)+ 8 H"(aq)+5e - Mn"(aq)+4 H,O(1) Ered =+1.51 V Br2(1)+2e - 2 Br (aq) E red=+1.065 V 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.

Question
A chemist designs a galvanic cell that uses these two half-reactions:
half-reaction
standard reduction potential
MnO, (aq)+ 8 H"(aq)+5e
- Mn"(aq)+4 H,O(1)
Ered =+1.51 V
Br2(1)+2e
- 2 Br (aq)
E
red=+1.065 V
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.
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Transcribed Image Text

A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential MnO, (aq)+ 8 H"(aq)+5e - Mn"(aq)+4 H,O(1) Ered =+1.51 V Br2(1)+2e - 2 Br (aq) E red=+1.065 V 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.

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