Home
Class 12
CHEMISTRY
The cell , Zn | Zn^(2+) (1M) || Cu^(2+) ...

The cell , `Zn | Zn^(2+) (1M) || Cu^(2+) (1M) Cu (E_("cell")^@ = 1. 10 V)`,
Was allowed to be completely discharfed at `298 K `. The relative concentration of `2+` to `Cu^(2+) [(Zn^(2=))/(Cu^(2+))]` is :

A

`9.65xx10^(4)`

B

antilog 24.08

C

`37.3`

D

`10^(37.3)`

Text Solution

Verified by Experts

The correct Answer is:
B
The cell reaction is: `Zn+Cu^(2+)toZn^(2+)+Cu` when the cell is completely discharged, `E_(cell)^(@)=(0.0591)/(2)"log"([Zn^(2+)])/([Cu^(2+)])`
i.e., `1.10=(0.591)/(2)"log"([Zn^(2+)])/([Cu^(2+)])`
or `([Zn^(2+)])/([Cu^(2+)])=37.3` or `([Zn^(2+)])/([Cu^(2+)])=10^(37.3)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    PRADEEP|Exercise VALUE BASED QUESTIONS WITH ANWER (Multiple Choice Questions-II)|7 Videos

  • ELECTROCHEMISTRY

    PRADEEP|Exercise VALUE BASED QUESTIONS WITH ANWER (Multiple Choice Questions-III Based on the given Passage/Comprehension)|13 Videos

  • ELECTROCHEMISTRY

    PRADEEP|Exercise HIGHER ORDER THINKING SKILLS (HOTS PROBLEMS)|13 Videos

  • D- AND F-BLOCK ELEMENTS

    PRADEEP|Exercise IMPORTANT QUESTIONS|30 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    PRADEEP|Exercise Curiosity Questions|2 Videos

Similar Questions

Explore conceptually related problems

The cell Zn//Zn^(2+) (1 M) ||Cu^(2+)(1M)//Cu(E_("cell")^(0) = 1.10 V) was allowed to be completely discharged at 298 K. The relative concentration of Zn^(2+) to Cu^(2+) (([Zn^(2+)])/([Cu^(2+)])) is 10^(x) . The value of x is : (take (2.303 RT)/(F) = 0.059 round off your answer up to one decimal)

The cell, Zn | Zn^(2+) (1M) || (1M) | Cu (E_(cell)^(@) = 1.10V) , was was allowed to be completely discharged at 298 K. The concentration of Zn^(2+) rightarrow CU^(2+)([([Zn^(2+)]/([Cu^(2+)])]) is :

The cell, Zn//Zn^(2+)(1M)"//"Cu^(2+)(1M)//Cu(E_(cell)^(@)=1.10V) , was allowed to be completely concentration of Zn^(2+) to Cu^(2+) is

In the cell, Zn|Zn^(2+)"||"Cu^(2+)|Cu ________.

For the cell given, below Zn|Zn^(2)||Cu^(2+)|Cu,(E_(cell)-E_(cell)^(@)) is -0.12 V. it will be when

The standard cell potential for Zn|Zn^(2+) ||Cu^(2+)|Cu" is "1.10 V. When the cell is completely discharged, log [Zn^(2+)]//[Cu^(2+)] is closest to

PRADEEP-ELECTROCHEMISTRY-VALUE BASED QUESTIONS WITH ANWER (Multiple Choice Questions-I)
  1. The reduction potential of hydrogen half cell will be negative if :

    Text Solution

    |

  2. If E(1),E(2) and E(3) are the emf values of the three galvanic cells ...

    Text Solution

    |

  3. The cell , Zn | Zn^(2+) (1M) || Cu^(2+) (1M) Cu (E("cell")^@ = 1. 10 V...

    Text Solution

    |

  4. An alloy of Pb-Ag weighing 1.08g was dissolved in dilute HNO(3) and th...

    Text Solution

    |

  5. The potential of the cell for the reaction, M(s)+2H^(+) (1M)rightarrow...

    Text Solution

    |

  6. Consider the following cell reaction. 2Fe(s)+O(2)(g)+4H^(+)(aq)rarr2...

    Text Solution

    |

  7. The value of (E(H(2)O)//H(2)^(@)) (1atm) Pt at 298K would b e

    Text Solution

    |

  8. The pressure of H(2) required to make the potential of H(2)-electrode ...

    Text Solution

    |

  9. In a cell that utilizes the reactions. Zn(s) + 2H^(+) (aq) rightarro...

    Text Solution

    |

  10. For the electrode Cu//Cu^(2+),log[Cu^(2+)] (along X-axis) is plotted a...

    Text Solution

    |

  11. For the calomel half-cell, Hg, Hg(2)Cl(2)|Cl^(-)(aq) values of electro...

    Text Solution

    |

  12. The following cell is found to have EMF equal to zero. Pt,H(2)("x at...

    Text Solution

    |

  13. The emf of the cell, Zn|Zn^(2+)(0.01M)|| Fe^(2+)(0.001M) | Fe at 2...

    Text Solution

    |

  14. Find K(c) for the complex: [Ag(NH(3))(2)]^(o+)hArrAg^(o+)+2NH(3) E...

    Text Solution

    |

  15. Given : Hg(2)^(2+) rightarrow 2Hg, E^(@) = 0.789 V and Hg^(2+) + 2e^...

    Text Solution

    |

  16. For the following electrochemical cell at 298K Pt(s)+H(2)(g,1"bar") ...

    Text Solution

    |

  17. The emf of a Daniell cell at 298 K is E(1) Zn|ZnSO(4)(0.01 M)||CuSO(...

    Text Solution

    |

  18. For the following cell, Zn(s)|ZnSO(4)(aq)||CuSO(4)(aq)||Cu(s) When...

    Text Solution

    |

  19. Standard free energies of formation (I kJ //mol ) at 298 K are -237 ....

    Text Solution

    |

  20. A fuel cell involves combustion of butane at at 1 atm and 298 K unders...

    Text Solution

    |