
Interpretation: The overall chemical equation in lead storage automobile battery with oxidized and reduced species during charging and recharging process needs to be determined.
Concept Introduction: In the
The EMF of the cell can be calculated with help of electrode reduction potential values.

Answer to Problem 33A
Oxidized species = Solid lead
Reduced species = Lead ions in PbO2
These batteries can recharge because passing electricity can reverse the reaction to form reactants again.
Explanation of Solution
In a lead storage battery, lead is anode and a grid of lead is cathode with lead dioxide (PbO2). The battery contains 38% of sulphuric acid as an electrolyte solution.
As battery remains in use the concentration of sulphuric acid changes due to given reactions:
When battery recharge, the reverse reaction occurs which converts lead sulphate to
When battery recharge, the reverse reaction occurs which converts lead sulphate to
Chapter 18 Solutions
World of Chemistry, 3rd edition
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