Identify the overall oxidation reaction that | vedclass

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(C) When the lead storage cell provides current (i.e.,during discharge),spongy lead $(Pb)$ is oxidized to $Pb^{2+}$ ions at the anode. The $Pb^{2+}$ i

Vedclass · Accepted Answer

$Pb_{(s)} + SO_{4(aq)}^{2-} \longrightarrow PbSO_{4(s)} + 2 e^{-}$

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(C) When the lead storage cell provides current (i.e.,during discharge),spongy lead $(Pb)$ is oxidized to $Pb^{2+}$ ions at the anode. The $Pb^{2+}$ ions so formed combine with $SO_4^{2-}$ ions from $H_2SO_4$ to form insoluble $PbSO_4$. The overall oxidation half-reaction is the sum of these two processes.$Pb_{(s)} \longrightarrow Pb_{(aq)}^{2+} + 2 e^{-}$(Oxidation)$Pb_{(aq)}^{2+} + SO_{4(aq)}^{2-} \longrightarrow PbSO_{4(s)}$(Precipitation)$Pb_{(s)} + SO_{4(aq)}^{2-} \longrightarrow PbSO_{4(s)} + 2 e^{-}$(Overall oxidation)

Identify the overall oxidation reaction that occurs in a lead storage cell during discharge.

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