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Estimate the cell potential of a Daniel ...

Estimate the cell potential of a Daniel cell having `1.0 M Zn^(2+)` and originally having `1.0 M Cu^(2+)` after sufficient ammonia has been added to the cathode compartment to make the `NH_(3)` concentration `2.0 M`. Given, `E_(Zn//Zn^(2+))^(@)` and `E_(Cu//Cu^(2+))^(@)` are `0.76` and `-0.34 V` respectively. Also equilirbrium constant for the `[Cu(NH_(3))_(4)]^(2+)` formation is `1 xx 10^(12)`.

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The correct Answer is:
`0.71 V ;`
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P BAHADUR-ELECTROCHEMISTRY-Exercise (9) ADVANCED NUMERICAL PROBLEMS
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  2. The e.m.f. of the obtained by combining Zn and Cu electrodes of Danie...

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  3. Calcualte the potential of an indicator electrode versus the standard ...

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  4. An electrode is prepared by dipping a silver strip into a solution sat...

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  6. Consider the cell Ag|AgBr((s)), Br^(-)||AgCl((s)), Cl^(-)|Ag at 25^(@)...

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  7. Calculate the half cell potential of a reaction Ag(2)S + 2e rarr 2Ag +...

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  8. The standard electrode potential are for the following reactions : F...

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  9. The pK(SP) of Agl is 16.07. If the E^(@) value for Ag^(+)//Ag is 0.79...

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  10. The e.m.f. of cell Zn|ZnSO(4)||CuSO(4)|Cu at 25^(@)C lis 0.03 V and th...

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  11. For the cell Mg((s))|Mg((aq.))^(2+)||Ag((aq.))^(+)|Ag((s)), calculate ...

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  12. The standard reduction potential of E(Bi^(3+)//Bi)^(@) and E(Cu^(2+)//...

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  13. Show that the potentials are additive for the process in which half re...

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  14. An alloy weighing 1.05g of Pb-Ag was dissolved in desired amount of HN...

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  15. The following galvanic cell was Zn|{:(Zn(NO(3))(2(aq.))),(100 mL"," ...

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  16. When silver chloride is dissolved in a large excess of ammonia, practi...

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  17. Estimate the cell potential of a Daniel cell having 1.0 M Zn^(2+) and ...

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  18. Calculate the e.m.f. of cell {:(Pt(H(2))),(1atm):}|{:(CH(3)COOH),(0....

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  19. Calculate the degree of hydrolysis and hydrolysis constant of M//32 so...

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  20. Design the cell having one of the half reaction CuS + 2e rarr Cu + S^(...

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