Standard Reduction (Electrode) Potentials at 25 oCHalf-Cell ReactionEo (volts)F2(g) + 2 e- 2 F-(aq)2.87Ce4+(aq) + e- Ce3+(aq)1.61MnO4-(aq) + 8 H+(aq) + 5 e- Mn2+(aq) + 4 H2O(l)1.51Cl2(g) + 2 e- 2 Cl-(aq)1.36Cr2O72-(aq) + 14 H+(aq) + 6 e- 2 Cr3+(aq) + 7 H2O(l)1.33O2(g) + 4 H+(aq) + 4 e- 2 H2O(l)1.229Br2(l) + 2 e- 2 Br-(aq)1.08NO3-(aq) + 4 H+(aq) + 3 e- NO(g) + 2 H2O(l)0.962 Hg2+(aq) + 2 e- Hg22+(aq)0.920Hg2+(aq) + 2 e- Hg(l)0.855Ag+(aq) + e- Ag(s)0.799Hg22+(aq) + 2 e- 2 Hg(l)0.789Fe3+(aq) + e- Fe2+(aq)0.771I2(s) + 2 e- 2 I-(aq)0.535Fe(CN)63-(aq) + e- Fe(CN)64-(aq)0.48Cu2+(aq) + 2 e- Cu(s)0.337Cu2+(aq) + e- Cu+(aq)0.153S(s) + 2 H+(aq) + 2 e- H2S(aq)0.142 H+(aq) + 2 e- H2(g)0.0000Pb2+(aq) + 2 e- Pb(s)-0.126Sn2+(aq) + 2 e- Sn(s)-0.14Ni2+(aq) + 2 e- Ni(s)-0.25Co2+(aq) + 2 e- Co(s)-0.28Cd2+(aq) + 2 e- Cd(s)-0.403Cr3+(aq) + e- Cr2+(aq)-0.41Fe2+(aq) + 2 e- Fe(s)-0.44Cr3+(aq) + 3 e- Cr(s)-0.74Zn2+(aq) + 2 e- Zn(s)-0.7632 H2O(l) + 2 e- H2(g) + 2 OH-(aq)-0.83Mn2+(aq) + 2 e- Mn(s)-1.18Al3+(aq) + 3 e- Al(s)-1.66Mg2+(aq) + 2 e- Mg(s)-2.37Na+(aq) + e- Na(s)-2.714K+(aq) + e- K(s)-2.925Li+(aq) + e- Li(s) A standard galvanic cell is constructed with Cd2+ | Cd and Ni2+ | Ni half cell compartments connected by a salt bridge. Which of thefollowing statements are correct?Hint: Refer to a table of standard reduction potentials.(Choose all that apply.)Cd is oxidized at the anode.The anode compartment is the Cd²*|Cd compartment.The anode compartment is the Ni²*|Ni compartment.In the external circuit, electrons flow from the Ni2*|Ni compartment to the Cd²*|Cd compartment.As the cell runs, anions will migrate from the Ni2"Ni compartment to the Cd2"|Cd compartment.

The half reactions are – Ni2+ +2e- →Ni...E∘=- 0.25 VCd2++ 2e-→Cd....E∘=- 0.403 VE∘of Ni2+ >E∘of…

Answered: A standard galvanic cell is constructed…

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 135CWP: Consider a galvanic cell based on the following half-reactions: a. What is the expected cell...

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Standard Reduction (Electrode) Potentials at 25 ^oC
Half-Cell Reaction	E^o (volts)
F₂(g) + 2 e^- 2 F^-(aq)	2.87
Ce⁴⁺(aq) + e^- Ce³⁺(aq)	1.61
MnO₄^-(aq) + 8 H⁺(aq) + 5 e^- Mn²⁺(aq) + 4 H₂O(l)	1.51
Cl₂(g) + 2 e^- 2 Cl^-(aq)	1.36
Cr₂O₇^2-(aq) + 14 H⁺(aq) + 6 e^- 2 Cr³⁺(aq) + 7 H₂O(l)	1.33
O₂(g) + 4 H⁺(aq) + 4 e^- 2 H₂O(l)	1.229
Br₂(l) + 2 e^- 2 Br^-(aq)	1.08
NO₃^-(aq) + 4 H⁺(aq) + 3 e^- NO(g) + 2 H₂O(l)	0.96
2 Hg²⁺(aq) + 2 e^- Hg₂²⁺(aq)	0.920
Hg²⁺(aq) + 2 e^- Hg(l)	0.855
Ag⁺(aq) + e^- Ag(s)	0.799
Hg₂²⁺(aq) + 2 e^- 2 Hg(l)	0.789
Fe³⁺(aq) + e^- Fe²⁺(aq)	0.771
I₂(s) + 2 e^- 2 I^-(aq)	0.535
Fe(CN)₆^3-(aq) + e^- Fe(CN)₆^4-(aq)	0.48
Cu²⁺(aq) + 2 e^- Cu(s)	0.337
Cu²⁺(aq) + e^- Cu⁺(aq)	0.153
S(s) + 2 H⁺(aq) + 2 e^- H₂S(aq)	0.14
2 H⁺(aq) + 2 e^- H₂(g)	0.0000
Pb²⁺(aq) + 2 e^- Pb(s)	-0.126
Sn²⁺(aq) + 2 e^- Sn(s)	-0.14
Ni²⁺(aq) + 2 e^- Ni(s)	-0.25
Co²⁺(aq) + 2 e^- Co(s)	-0.28
Cd²⁺(aq) + 2 e^- Cd(s)	-0.403
Cr³⁺(aq) + e^- Cr²⁺(aq)	-0.41
Fe²⁺(aq) + 2 e^- Fe(s)	-0.44
Cr³⁺(aq) + 3 e^- Cr(s)	-0.74
Zn²⁺(aq) + 2 e^- Zn(s)	-0.763
2 H₂O(l) + 2 e^- H₂(g) + 2 OH^-(aq)	-0.83
Mn²⁺(aq) + 2 e^- Mn(s)	-1.18
Al³⁺(aq) + 3 e^- Al(s)	-1.66
Mg²⁺(aq) + 2 e^- Mg(s)	-2.37
Na⁺(aq) + e^- Na(s)	-2.714
K⁺(aq) + e^- K(s)	-2.925
Li⁺(aq) + e^- Li(s)

A standard galvanic cell is constructed with Cd2+ | Cd and Ni2+ | Ni half cell compartments connected by a salt bridge. Which of the
following statements are correct?
Hint: Refer to a table of standard reduction potentials.
(Choose all that apply.)
Cd is oxidized at the anode.
The anode compartment is the Cd²*|Cd compartment.
The anode compartment is the Ni²*|Ni compartment.
In the external circuit, electrons flow from the Ni2*|Ni compartment to the Cd²*|Cd compartment.
As the cell runs, anions will migrate from the Ni2"Ni compartment to the Cd2"|Cd compartment.

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