Estimate the standard reduction potential for the copper // copper sulphide electrode. For CuS,K_(sp)=8.5 xx 10^(-36),E^(c-)._(Cu|Cu^(2+))=-0.34V.
If excess of Zn is added to 1.0M solution of CuSO_(4) , find the concentration of Cu^(2+) ions at equilibrium. Given :E^(c-)._((Zn^(2+)|Zn))=-0.76V E^(c-)._(cell)=(E^(c-)._((Cu^(2+)|Cu))=0.34V
Calculate e.m.f. of the cell containing nickel and copper electrodes. Given that : E_(Ni^(2+)//Ni)^(@)=-0.25 V , E_(Cu^(2+)//Cu)^(@)=+0.34 V.
What is E^(c)._(red) for the reaction : Cu^(2+)+2e^(-) rarr Cu in the half cell Pt_(S^(2)|CuS|Cu) . if E^(c-)._(Cu^(2+)|Cu) is 0.34V and K_(sp) of CuS=10^(-35) ?
If the Zn^(2+) and Cu^(2+) concentrations are 0.1 M and 10^(-9) M respectively at 25^(@) C , the potential of the cell containing Zn//Zn^(2+) and Cu//Cu^(2+) electrodes is ___________. [Given E_(Zn//Zn^(2+))^(@)=+0.76, E_(Cu//Cu^(2+))^(@)=-0.34 V]
Calculate the maximum work that can be obtained from the decimolar Daniell cell at 25^(@)C . Given E^(c-)._((Zn^(2+)|Zn))=-0.76V and E^(c-)._((Cu^(2+)|Cu))=0.34V