3. In the lead storage battery, lead serves as the anode, and lead coated with lead oxide serves as the cathode. Both electrodes dip into an electrolyte solution of sulfuric acid. The electrode reactions are Pb(s) + HSO4 (aq) → PbSO4(s) + H+ (aq) + 2e¯ PbO₂ (s) + HSO4 (aq) + 3H+ (aq) + 2e → PbSO4(s) + 2H₂O(l) E ox = +0.35V Eºred = +1.69V Cell reaction: Pb(s) + PbO₂ (s) + 2HSO (aq) + 2H+ (aq) → 2PbSO4(s) + 2H₂0 (1) (The given standard reduction/oxidation potentials were measured at 25°C). a. b. Calculate the standard cell potential, Eº, for this cell at 25°C. The concentration of sulfuric acid in a car battery is 6 M, when the battery is fully charged. Use the Nernst equation to determine the cell potential, E. Remember that sulfuric acid is a strong acid (use only the first proton).
3. In the lead storage battery, lead serves as the anode, and lead coated with lead oxide serves as the cathode. Both electrodes dip into an electrolyte solution of sulfuric acid. The electrode reactions are Pb(s) + HSO4 (aq) → PbSO4(s) + H+ (aq) + 2e¯ PbO₂ (s) + HSO4 (aq) + 3H+ (aq) + 2e → PbSO4(s) + 2H₂O(l) E ox = +0.35V Eºred = +1.69V Cell reaction: Pb(s) + PbO₂ (s) + 2HSO (aq) + 2H+ (aq) → 2PbSO4(s) + 2H₂0 (1) (The given standard reduction/oxidation potentials were measured at 25°C). a. b. Calculate the standard cell potential, Eº, for this cell at 25°C. The concentration of sulfuric acid in a car battery is 6 M, when the battery is fully charged. Use the Nernst equation to determine the cell potential, E. Remember that sulfuric acid is a strong acid (use only the first proton).
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.118QP
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