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If excess of Zn is added to 1.0M solutio...

If excess of Zn is added to 1.0M solution of `CuSO_4`, find the concentration of `Cu^(2+)` ions at equilibrium. The standard reduction potentials of Zn and Cu at `25^@C` are 0.76 V and +0.34V.

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The correct Answer is:
`1.7xx10^(-28)`
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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

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The normal oxidation potential of zinc referred to the standard hydrogen electrode is 0.76 volt and that of copper is -0.34 volt at 25^(@)C . When excess of zinc is added to a solution of copper sulphate the zinc displace copper till equilibrium is reached. What is the ratio of concentration of Zn^(2+) to Cu^(2+) ions at equilibrium ?

MOTION-CLASSROOM PROBLEMS -Electrochemistry
  1. 50 mL of 0.1 M CuSO4 solution is electrolysed using Pt electrodes with...

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  2. An electric current is passed through electrolytic cells in series one...

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  3. A current of 1.70A is passed trhough 300.0 mL of 0.160M solution of Zn...

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  4. An acidic solution of Cu^(2+) salt containing 0.4g of Cu^(2+) is elect...

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  5. (a) If E^@ (Ag^(+)//Ag) = 0.8 V and E^@ (H^(+)//H2) = 0 V, in a cell a...

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  6. For each of the following cells : (a) Write the equation for cell pr...

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  7. Find the electrode potentials of the following electrodes. (a) Pt, ...

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  8. For the cell : Zn//Zn^(2+) (x M) | | Ag^(+)/Ag (y M) (a) Write Nerns...

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  9. If excess of Zn is added to 1.0M solution of CuSO4, find the concentra...

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  10. A cell contains two hydrogen electrodes. The negative electrode is in ...

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  11. Find the standard electrode potential of MnO(4)^(c-)|MnO(2). The stand...

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  12. E.M.F. of following cell is 0.265 V at 25^@C and 0.2595 V at 35^@C. Ca...

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  13. Calculate the EMF of the following cell at 25^@C, Pt, H2 (1 atm) / H^+...

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  14. Calculate the electrode potential at 25^@C of Cr2O7^(2–)//Cr^(3+) elec...

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  15. Find the K(sp) of AgCl from the following data. The standard electrode...

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  16. The standard reduction potential of the Ag^(o+)|Ag electrode at 298K i...

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  17. Two Daniel cells contain the same solution of ZnSO4 but differ in the ...

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  18. During the discharge of a lead storage battery, the density of sulphur...

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  19. A test for complete removal of Cu^(2+) ions from a solution of Cu^(2+)...

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  20. A graph is plotted between E(cell) and log .([Zn^(2+)])/([Cu^(2+)]) . ...

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