Below contains a strip of lead metal and a beaker containing a solution of the c

Question

Below contains a strip of lead metal and a beaker containing a solution of the corresponding metal ion (e.g. Pb(No_3)_2) (aq). the Pb strip is placed in the Pb^2+ solution. Figure 4c is the microscopic view of the interface between the surface of the electrode and the metal ion solution within which the metal electrode s placed, not snowing NO_3^- and H_2O for simplicity. Divide into pairs to answer the following question According to figure 4(c) which of the following reactions occur immediately after a strip of lead metal is placed into a solution of Pb(NO_2) (aq)? Pb^2+ (aq) = 2e- rightarrow Pb(s) Pb(s) rightarrow Pb^2+ (aq) + 2e- I only II only I and II none Share your answer with the other pair. Come to consensus and explain the rationale behind your choice.

Explanation / Answer

From the diagram the first reaction occurs immediately compare to second.it is based on following electrode potential value.

Pb+2 (aq) + 2e- ------> Pb(s) ; E0 = -0.13

And the given diagram also shows that electrons are gained by Pb+2 and depositing in the surface of Pb strip as Pb.

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