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0.56 V is the standard potential, e∘cell∘, for this galvanic cell.
The standard reduction potential can be calculated by subtracting the standard reduction potential for the reaction occurring at the cathode from the standard reduction potential for the reaction occurring at the anode. The minus sign is necessary because oxidation is the polar opposite of reduction. The total cell potential can be calculated using the formula E0cell=E0red+E0oxid. Step two is to find a solution. Before the two reactions may be integrated, the number of electrons gained in the reduction must match the number of electrons lost in the oxidation
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The standard potential for the given galvanic cell is 0.477 V
What is electrode potential?
The electrode potential is the electromotive force of a galvanic cell built using a standard reference electrode and another electrode whose potential is to be found.
There are two types of electrode potential
Oxidation potential - The potential associated with oxidation reaction is known as oxidation potential
Reduction potential - The potential associated with reduction reaction is known as reduction potential
At the anode, oxidation occurs
[tex]Sn(s)\rightarrow Sn^{2+}(aq)+2e^-[/tex]
At the cathode, reduction occurs
[tex]Cu^{2+}(aq)+2e^-\rightarrow Cu(s)[/tex]
[tex]E^o_{cell} =E^o_{cathode} -E^o_{anode}[/tex]
= 0.337 - (-0.140)
= 0.477 V
Thus, The standard potential for the given galvanic cell is 0.477 V
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Question: What is the standard potential, E∘cell, for this galvanic cell? Use the given standard reduction potentials in your calculation as appropriate.
[tex]Sn^{2+}(aq)+2e^-\rightarrow Sn(s)[/tex], E°red=−0.140 V
[tex]Cu^{2+}(aq)+2e^-\rightarrow Cu(s)[/tex], E°red=+0.337 V
