1.

The Edison storage cell is represented as : Fe(s)/FeO(s)/KOH(aq)/Ni2O3 (s)/Ni(s) The half-cell reactions are: Ni2O3(s)+H2O(l)+2e−→2NiO(s)+2OH−;E∘+0.40 FeO(s)+H2O(l)+2e−→Fe(s)+2OH−;E∘=−0.87, What is the maximum amount of electrical energy that can be obtained from one mole of Ni2O3 ?

Answer»

The Edison storage cell is represented as :
Fe(s)/FeO(s)/KOH(aq)/Ni2O3 (s)/Ni(s)
The half-cell reactions are:
Ni2O3(s)+H2O(l)+2e−→2NiO(s)+2OH−;E∘+0.40
FeO(s)+H2O(l)+2e−→Fe(s)+2OH−;E∘=−0.87,
What is the maximum amount of electrical energy that can be obtained from one mole of Ni2O3 ?


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