Home
Class 12
CHEMISTRY
Calculate the emf of the cell in which t...

Calculate the emf of the cell in which the following reaction takes place:
`Ni(s)+ 2Ag^+(0.002M) to Ni^2(0.160 M)+2Ag(s)`. Given that `E_(cell)^0=1.05V`

Text Solution

Verified by Experts

`E_(cell)=E_(cell)^0-0.059/nlog[Ni^(2+)]/[Ag^+]^2`
`=1.05-0.059/2log0.160/(0.002)^2=1.05-0.059/2log(4xx10^4)`
`1.05-0.0295xx4.6021=1.05-0.135=0.914V`
Promotional Banner

Topper's Solved these Questions

  • D AND F - BLOCK ELEMENTS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|66 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|49 Videos

Similar Questions

Explore conceptually related problems

Calculate 'the emf of the ceil in which the following reaction takesplace: Ni(s)+2 Ag+(0.002 M)-- Ni^2+(0 .160 M)+2Ag(s) Given that E^0 Cell=1.05 V

Calculate the standard cell.potentials of galvanic cell in which the following reactions take place: Fe^2+(aq)+Ag+^*(aq)^* -> Fe^3+(aq)+Ag(s) Calculate the Delta r G^circ and equilibrium constant of the reactions.

Calculate the e.m.f of the following concentration cell at 298K, Zn(s)| Zn^(2+)(0.1) || Zn^(2+) (1.0)|Zn(s)

Calculate emf of the following cells at 25^@C in which the following reactions are taking place, use E^@ values from table Mg+Cl_2 (1atm) leftrightarrow Mg^(2+) (10^-2 M) +2Cl^(-) (2 times 10^2 M)

In thebutton cells widely used in watches and other devices the following reaction takes place: Zn (s) + Ag_2O (s) + H_2O(I) --Zn^(2+) (aq) + 2Ag (s) + 2OH-(aq) Determine Delta_rG^0 and E^0 for the reaction.

Calculate the emf of the following cells, find their cells reactions using E^@ values from the table? Ag|Ag^+ (0.01M) ||Zn^(2+) (0.1M)|Zn In each case, is the reaction as written spontaneous or not?

Represent the electrochemical cells corresponding to the following cell reaction Ni(s)+2Ag^(+)(aq)to2Ag(s)+Ni^(2+)(aq)

The cell reaction for a galvanic cellIs Ni_(s)+2Ag_(aq)^(+) rarr Ni_(aq)^(2+)+ 2Ag_(s) .Represent that galvanic cell.

In the button cells widely used in watches and other'devices the folfowing reaction takes place: ( Zn(s)+Ag_2 O(s)+H_2 O dotD Zn^2+(aq)+2 Ag(s)+ 2 OH - (aq).) Determine Delta_r G^circ and cdot E^circ for the reaction.

Which of the following will increase the voltage of the cell with folowing reaction? Sn+2Ag^(+)toSn^(2+)+2Ag

A N EXCEL PUBLICATION-ELECTROCHEMISTRY-QUESTION BANK
  1. Consult the table of standard electrode potential and suggest three su...

    Text Solution

    |

  2. Calculate the potential of hydrogen electrode in contact with a soluti...

    Text Solution

    |

  3. Calculate the emf of the cell in which the following reaction takes pl...

    Text Solution

    |

  4. The cell in which the following reaction occurs 2Fe^(3+)(aq)+2I-(aq)...

    Text Solution

    |

  5. Why does the conductivity of a solution decreases with dilution?

    Text Solution

    |

  6. Suggest a way to determine Lambdam^@ value of water.

    Text Solution

    |

  7. The molar conductivity of 0.025 mol L^(-1) methanoic acid (HCOOH) is 4...

    Text Solution

    |

  8. If a current of 0.5 ampere flows through a metallic wire for two hours...

    Text Solution

    |

  9. Suggest two material other than hydrogen that can be used as fuels in ...

    Text Solution

    |

  10. From the electrochemical series, Cu can displace Ag from silver nitrat...

    Text Solution

    |

  11. From the electrochemical series, Cu can displace Ag from silver nitrat...

    Text Solution

    |

  12. From the electrochemical series, Cu can displace Ag from silver nitrat...

    Text Solution

    |

  13. From the electrochemical series, Cu can displace Ag from silver nitrat...

    Text Solution

    |

  14. State the Faraday's laws of electrolysis

    Text Solution

    |

  15. In a classroom, the teacher has explained the quantitative aspects of ...

    Text Solution

    |

  16. In a classroom, the teacher has explained the quantitative aspects of ...

    Text Solution

    |

  17. The limiting molar conductivity of an electrolyte is obtained by addin...

    Text Solution

    |

  18. The limiting molar conductivity of an electrolyte is obtained by addin...

    Text Solution

    |

  19. Explain how conductivity measurements help to determine the ionisation...

    Text Solution

    |

  20. The limiting molar conductivity of an electrolyte is obtained by addin...

    Text Solution

    |