1. Find the cell potential of a galvanic cell based on the following reduction half-reactions at 25°C. Cd2 + 2e > Cd Pb2 + 2e > Pb Where [Cd2+] = 0.020 M and [Pb2+] = 0.200 M2. For the same reaction, calculate the equilibrium concentration of [Pb2+] if [Cd2+] = 0.020 M.References/Given Values (use the photo as well for reference): Faraday’s Constant: F = 96,485 C/mol e-; . Universal Gas Constant = 8.31447 J/mol-K . Standard Temperature = 298.15K (25°C) Standard reduction potentials for some common metals - for aqueoussolutions of ions at 1.0 M concentration at 25 °C and H2 gas at 1.0 atmpressure and 25°CReduction Half-Cell EquationLi+ + 1e-K+ + 1e-Ba²+ + 2eCa²+ + 2e-Na+ + 1e-Mg²+ + 2e-Al3+ + ЗеZn²+ + 2e-Cr3+ + ЗеFe²+ + 2e-Cd²+ + 2e-Ni2+ + 2e-Sn²+ + 2e- ←Pb²+ + 2e-↑ | I | I | I | I | I | I | 12 H+ + 2eCu²+ + 2e-LiK1BaCaNaMgAIZnCrFeCdNiH2Cu2 HgHg₂²+ + 2e →→Ag+ + 1e-Hg2+ + 2e-Au³+ + 3e- → AuAgHgsnPbE° (v)-3.04-2.92-2.91-2.87-2.71-2.36-1.66-0.76-0.74-0.44-0.40-0.25-0.14-0.130.00+0.34+0.79+0.80+0.85+1.42

We have to use Nernst equation to calculate the both question. We know at equilibrium Ecell=O.

Answered: Find the cell potential of a galvanic…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

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1. Find the cell potential of a galvanic cell based on the following reduction half-reactions at 25°C.
Cd² + 2e > Cd
Pb² + 2e > Pb
Where [Cd²⁺] = 0.020 M and [Pb²⁺] = 0.200 M

2. For the same reaction, calculate the equilibrium concentration of [Pb2+] if [Cd2+] = 0.020 M.

References/Given Values (use the photo as well for reference):
Faraday’s Constant: F = 96,485 C/mol e-; . Universal Gas Constant = 8.31447 J/mol-K . Standard Temperature = 298.15K (25°C)

Standard reduction potentials for some common metals - for aqueous
solutions of ions at 1.0 M concentration at 25 °C and H2 gas at 1.0 atm
pressure and 25°C
Reduction Half-Cell Equation
Li+ + 1e-
K+ + 1e-
Ba²+ + 2e
Ca²+ + 2e-
Na+ + 1e-
Mg²+ + 2e-
Al3+ + Зе
Zn²+ + 2e-
Cr3+ + Зе
Fe²+ + 2e-
Cd²+ + 2e-
Ni2+ + 2e-
Sn²+ + 2e- ←
Pb²+ + 2e-
↑ | I | I | I | I | I | I | 1
2 H+ + 2e
Cu²+ + 2e-
Li
K
1
Ba
Ca
Na
Mg
AI
Zn
Cr
Fe
Cd
Ni
H2
Cu
2 Hg
Hg₂²+ + 2e →→
Ag+ + 1e-
Hg2+ + 2e-
Au³+ + 3e- → Au
Ag
Hg
sn
Pb
E° (v)
-3.04
-2.92
-2.91
-2.87
-2.71
-2.36
-1.66
-0.76
-0.74
-0.44
-0.40
-0.25
-0.14
-0.13
0.00
+0.34
+0.79
+0.80
+0.85
+1.42

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