Consider an electrochemical cell constructed from the following half cells, linked by a KCl salt bridge....
Consider an electrochemical cell constructed from the following half cells, linked by a KCl salt bridge.
a Fe electrode in 1.0 M FeCl2 solution
a Sn electrode in 1.0 M Sn(NO3)2 solution
Fe2+ + 2e- → Fe Eo = -0.44 V
Sn2+ + 2e- → Sn Eo = -0.14 V
When the cell is running spontaneously, which choice includes only true statements and no false ones?
Select one:
a. The iron electrode gains mass and the iron electrode is the anode.
b. No changes in mass in both iron and tin electrodes.
c. The tin electrode gains mass and the tin electrode is the cathode.
d. The tin electrode loses mass and the tin electrode is the cathode.
e. The iron electrode loses mass and the iron electrode is the cathode.
Homework Answers
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Consider an
electrochemical cell constructed from the following half cells,
linked by a KCl salt bridge....
19 20 Question 16 Half-cell Potentials: Half Reaction: E' value + 0.80 V +0.77 V Agte...
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6. Consider an electrochemical cell constructed from the following half cells, linked by an external cir-...
6. Consider an electrochemical cell constructed from the following half cells, linked by an external cir- cuit and by a KCl salt bridge. • an Als) electrode in 1.0 MAINO:)solution . a Pb(s) electrode in 1.0 MPb(NO3), solution 1. Which is oxidized? A. AI B. A C. Pь D. Pb? 2. Which is the half reaction at the anode? A. B. C. D. Pb() Pb(aa) +2e A1) Al (aq) +3e. Pb(aq) + 2e →Pb() Al (aa) +3e + Al(s) 3....
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Two half-reactions are shown with their standard cell potentials. If a galvanic cell is constructed using...
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19 20 Question 16 Half-cell Potentials: Half Reaction: E' value + 0.80 V +0.77 V Agte → AS Fe3+ + + Fe2+ Cu2+ 2e → Cu Pb2+ + 2e → Pb +0.34 V -0.13 V Ni2+ + 2e → NI -0.25 V - 0.40 V Cd2+ +2e → ca Fe2+ + 2e → Fe Zn2+ + 2e → Zn -0.44 V - 0.76 V A13+ +3 → AI - 1.66 V Consider an electrochemical cell constructed from the following half...
6. Consider an electrochemical cell constructed from the following half cells, linked by an external cir- cuit and by a KCl salt bridge. • an Als) electrode in 1.0 MAINO:)solution . a Pb(s) electrode in 1.0 MPb(NO3), solution 1. Which is oxidized? A. AI B. A C. Pь D. Pb? 2. Which is the half reaction at the anode? A. B. C. D. Pb() Pb(aa) +2e A1) Al (aq) +3e. Pb(aq) + 2e →Pb() Al (aa) +3e + Al(s) 3....
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