Home
Class 12
CHEMISTRY
Predict whether reaction will occur betw...

Predict whether reaction will occur between the pairs given below :
`Fe^(3+)and I^(-)`
`[" Given "E_(Fe^(3+)|Fe^(2+))=+0.77 V , E_((1/2)I_(2)|I^(-))=+0.54 V, E_(Ag^(+)|Ag)^(@)=+0.79 V and E_((Sn)^(4+)|Sn^(2+))^(@)=+0.15 V ] `

Text Solution

Verified by Experts

A reaction is feasible if EMF of the cell is positive .
`Fe^(3+) (aq) + I^(-) (aq) to Fe^(2+) (aq) + 1//2 I_2`
Cell is `Pt|I_(2)|I^(-) (aq) ||Fe^(3+) (aq) |Fe^(2+) (aq) |Pt`
`E_(cell)^(Theta) = E^(Theta) (Fe^(3+)|Fe^(2+)) - E^(@) (1//2 I_(2) // I^(-))`
`= 0.77 - 0.54 = 0.23 V`
Reaction is feasible .
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise NCERT FILE NCERT NCERT EXEMPLAR PROBLEMS (MULTIPLE CHOICE QUESTIONS (TYPE - I))|23 Videos

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise NCERT FILE NCERT NCERT EXEMPLAR PROBLEMS (Matching Type Questions)|6 Videos

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise NCERT FILE NCERT (IN -TEXT QUESTIONS)|15 Videos

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|12 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise COMPETION FILE (Integer Type Numerical Value Type Questions)|5 Videos

Similar Questions

Explore conceptually related problems

Calculate DeltaG^@ of reaction 2Fe^(3+)+2I^-to2Fe^(2+)+I_2 Given: E_(Fe^(3+)//Fe^(2+))^@ = 0.77V , E_(I_2//I^-)^@ = 0.53V

Predict if the reaction between is feasible : Fe^(3+) (aq) and Br^(-) (aq) Given standard electrode potentials : E_(1//2)^(Theta) I_(2)//I^(-) = 0.54 V , E_(1//2)^(Theta) Cu^(2+)//Cu = 0.34 V , E_(1//2)^(Theta) Br_(2) //Br^(-) = 1.09 V, E_(1//2)^(Theta) Ag^(+)//Ag = 0.80 V and E_(1//2)^(Theta) Fe^(3+)// Fe^(2+) = 0.77 V

Predict if the reaction between is feasible : Ag (s) and Fe^(3+) (aq) Given standard electrode potentials : E_(1//2)^(Theta) I_(2)//I^(-) = 0.54 V , E_(1//2)^(Theta) Cu^(2+)//Cu = 0.34 V , E_(1//2)^(Theta) Br_(2) //Br^(-) = 1.09 V, E_(1//2)^(Theta) Ag^(+)//Ag = 0.80 V and E_(1//2)^(Theta) Fe^(3+)// Fe^(2+) = 0.77 V

Predict if the reaction between is feasible : Br_2 (aq) and Fe^(2+) (aq) Given standard electrode potentials : E_(1//2)^(Theta) I_(2)//I^(-) = 0.54 V , E_(1//2)^(Theta) Cu^(2+)//Cu = 0.34 V , E_(1//2)^(Theta) Br_(2) //Br^(-) = 1.09 V, E_(1//2)^(Theta) Ag^(+)//Ag = 0.80 V and E_(1//2)^(Theta) Fe^(3+)// Fe^(2+) = 0.77 V

If E_(Fe^(2+)//Fe)^(@)=-0.440 V and E_(Fe^(3+)//Fe^(2+))^(@)=0.770 V , then E_(Fe^(3+)//Fe)^(@) is -

If E_(Fe^(2+)|Fe)^0=-0.44V,E_((Fe^3+)||Fe^(2+))^0=0.77 . Calculate E_(Fe^(3+)|Fe)^0

Calculate at 25^(@) C , the equilibrium constant for the reaction : 2 Fe^(3+) + Sn^(2+) hArr 2 Fe^(2+) + Sn^(4+) Given that E_((Fe^(3+)|Fe^(2+)))^(Theta) = 0.771 V , E_((Sn^(4+) |Sn^(2+)))^(Theta) = 0.150 V

MODERN PUBLICATION-ELECTROCHEMISTRY -NCERT FILE NCERT (TEXTBOOK EXERCISES)
  1. Define conductivity and molar conductivity for the solution of an ele...

    Text Solution

    |

  2. The conductivity of 0.20 M solution of KCl at 298 K is 0.0248 S cm^(-1...

    Text Solution

    |

  3. The resistance of a conductivity cell contaning 0.001M KCl solution at...

    Text Solution

    |

  4. The conductivity of sodium Chloride at 298K has been determine at di...

    Text Solution

    |

  5. The conductivity of 0.00241 M acetic acid is 7.896xx10^(-5)Scm^(-1). C...

    Text Solution

    |

  6. How many coulombs are required for the following reductions ? (i) 1 ...

    Text Solution

    |

  7. How much electricity in terms of Faraday is required to produce 20 g o...

    Text Solution

    |

  8. How much electricity in terms of Faraday is required to produce 40.0 g...

    Text Solution

    |

  9. How much electricity is required in coulomb for the oxidation of : (a...

    Text Solution

    |

  10. A solution of Ni(NO(3))(2) is electrolyzed between platium electrodes...

    Text Solution

    |

  11. Three electrolytic cell A,B, and C contaning solutions of ZnSO(4), AgN...

    Text Solution

    |

  12. Predict whether reaction will occur between the pairs given below : ...

    Text Solution

    |

  13. The standard cell potential for the cell Zn|Zn^(2+) (1 M)|| Cu^(2+) (1...

    Text Solution

    |

  14. Predict if the reaction between is feasible : Fe^(3+) (aq) and Br^(...

    Text Solution

    |

  15. Predict if the reaction between is feasible : Ag (s) and Fe^(3+) (a...

    Text Solution

    |

  16. Predict if the reaction between is feasible : Br2 (aq) and Fe^(2+)...

    Text Solution

    |

  17. Give products of electrolysis of an aqueous solution of AgNO(3) with s...

    Text Solution

    |

  18. Give products of electrolysis of an aqueous solution of AgNO(3) with s...

    Text Solution

    |

  19. Predict the products of electrolysis of a solution of H(2)SO(4) using ...

    Text Solution

    |

  20. Predict the product of electrolysis of an aqueous solution of CuCl(2) ...

    Text Solution

    |