3.) Consider that the following half'reaction is assigned a half coll vtage of 6 00 V Hg (aq) + 2e Hg (1) E0.00 V When this half-cell is paired with each of the following half-colls to form a complete cell in the laboratory, the following cell voltages are measured when the Hg cell is connected to the (+) terminal, thus acting as the cathode. Hg "Standard" Cell Potentials Ni/NI with Hg/Hg. 1.134 V Sn/Sn Hg/Hg". with 0.99 V Calculate the reduction potentials using this Hg standard cell. a. Ece E E NilNite T.134/= -1.134 V (Hg Standard) Ni2 (aq) + 2 e → Ni(s) --99r V (Hg Standard) Sn*2 (aq) + 2 e → Sn(s) 168
3.) Consider that the following half'reaction is assigned a half coll vtage of 6 00 V Hg (aq) + 2e Hg (1) E0.00 V When this half-cell is paired with each of the following half-colls to form a complete cell in the laboratory, the following cell voltages are measured when the Hg cell is connected to the (+) terminal, thus acting as the cathode. Hg "Standard" Cell Potentials Ni/NI with Hg/Hg. 1.134 V Sn/Sn Hg/Hg". with 0.99 V Calculate the reduction potentials using this Hg standard cell. a. Ece E E NilNite T.134/= -1.134 V (Hg Standard) Ni2 (aq) + 2 e → Ni(s) --99r V (Hg Standard) Sn*2 (aq) + 2 e → Sn(s) 168
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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How do I do question 3?
Transcribed Image Text:Mixed CelI Potentials
Now consider combining the Ni/NI and Sn/Sna half cells to produce a complete cell.
b.
Calculate the voltage of the cell you would expect to measure using your Hg standard
values.
Ni/Ni*2
with
Sn/Sn2.
V
The Standard reduction potential values from Tables (using the Standard Hydrogen Electrode,
SHE) are as follows:
Sn*2 (aq) +
2 e
→ Sn(s)
-0.136 V
Ni*2 (aq) + 2 e → Ni(s)
-0.280 V
c. Calculate the voltage of the cell using the standard values from reference tables.
Ni/Ni*2
with
Sn/Sn*2.
V
169
Transcribed Image Text:3.) Consider that the following half'reaction is assigned a half coll voltage of 6 00 V
Hg (aq) + 2 e Hg (1)
E 0.00 V
When this half-cell is paired with each of the following half-colls to forma complete cell
in the laboratory, the following cell voltages are measured when the Hg cell is connected to the
(+) terminal, thus acting as the cathode.
Hg "Standard" Cell Potentials
Ni/Ni
with
Ha/Hg.
1.134 V
Sn/Sn
with
Hg/Hg,
0.99 V
a.
Calculate the reduction potentials using this Hg standard cell.
Ecll
E
E NilNi
%3D
-1134V
-134
-99r
V (Hg Standard)
Ni*2 (aq) + 2 e → Ni(s)
V (Hg Standard)
Sn*2 (aq) + 2 e
→ Sn(s)
168
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