Home
Class 12
CHEMISTRY
Calculate the e.m.f. of the cell at 25^(...

Calculate the e.m.f. of the cell at `25^(@)C` `Cr|Cr^(3+)(0.1M)||Fe^(2+)(0.01M)|Fe`
Given `E_((Cr^(2+)//Cr))^(@)=-0.75V,E_((Fe^(2+)//Fe))^(@)=-0.44`

Text Solution

Verified by Experts

Cell representation is,
`Cr|Cr^(3+)(0.1M)||Fe^(2+)(0.01M)|Fe`
Cell reaction are,
`Cr(s)toCr^(3+)(aq)+3e^(-)]xx2`
`Fe^(2+)(aq)+2e^(-) to Fe(s)]xx3`
`2Cr(s)+3Fe^(2+)(aq)to2Cr^(3+)(aq)+3Fe(s)`
Here, n=5
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    BETTER CHOICE PUBLICATION|Exercise FUEL CELLS|8 Videos

  • CO-ORDINATION COMPOUNDS

    BETTER CHOICE PUBLICATION|Exercise QUESTION FROM PREVIOUS BOARD EXAMINATION|59 Videos

  • GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS

    BETTER CHOICE PUBLICATION|Exercise Question Bank (6.6 OXIDATION-REDUCTION)|15 Videos

Similar Questions

Explore conceptually related problems

Write NERNST equation also Calculate the cell e.m.f. and DeltaG for the cell reaction at 25^(@)C Cr(s)//Cr^(3+)(0.1M)"//"Fe^(2+)(0.01M)//Fe(s) Given E_(Cr^(3+)//Cr)^(0)=-0.75V, E_(Fe^(2+)//Fe)^(0)=-0.45V

Write Nernst equation and calculate the e.m.f of the following cell at 298 K: Zn|Zn^(2+)(0.01M)||Fe^(2+)(0.005M)|Fe Given that: (Zn^(2+)//Zn)=-0.763V and E_(Fe^(2+)//Fe)^(@)=-0.44V" "log2=0.3010 .

The calculate the e.mf. Of the following cell at 298: Fe|Fe^(2+)(0.1M)||Ag^(2+)(0.1M)|Ag E_((Fe^(2+)//Fe))^(@)=-0.44V,E_((Ag^(+)//Ag))^(@)=0.80V .

Calculate the e.m.f of the following cell at 298K 2Cr(s)+3Fe^(2+)(0.01M)rarr2Cr^(3+)(0.1M)+3Fe(s) Given: E^@(Cr^(3+)|Cr)=-0.75V , E^@(Fe^(2+)|Fe)=-0.45V .

BETTER CHOICE PUBLICATION-ELECTROCHEMISTRY-Numerical Problems
  1. Write Nernst equation and calculate the e.m.f of the following cell at...

    Text Solution

    |

  2. Write Nernst equation and calculate the e.m.f. of the following cell a...

    Text Solution

    |

  3. Calculate the e.m.f. of the cell at 25^(@)C Cr|Cr^(3+)(0.1M)||Fe^(2+)(...

    Text Solution

    |

  4. What is the amount of electricity required to deposit one mole of alum...

    Text Solution

    |

  5. A solution of Ni(NO3)2 is electrolysed between platinum electrodes usi...

    Text Solution

    |

  6. What is the amount of electricity required to deposit one mole of alum...

    Text Solution

    |

  7. What mass of zinc can be produced by the electrolysis of zinc sulphate...

    Text Solution

    |

  8. What is the amount of electricity required to deposit one mole of Zinc...

    Text Solution

    |

  9. A solution of CuSO4 is electrolysed for 10 minutes with a current of 1...

    Text Solution

    |

  10. Calculate the cell e.m.f. and DeltaG for the cell reaction at 25^(@)C ...

    Text Solution

    |

  11. The resistance of a 0.5 M solution of an electrolyte in a conductivity...

    Text Solution

    |

  12. Calculate DeltaG and E(cell) for the cell: AI//AI^(3+)(0.01M)||Fe^(2...

    Text Solution

    |

  13. The resistance of a 0.5 M solution of an electrolyte enclosed between ...

    Text Solution

    |

  14. Write Nernst equation and calculate the e.m.f. of the following cell a...

    Text Solution

    |

  15. The electrical resistance of a column of 0.05 mol L^(-1) NaOH solution...

    Text Solution

    |

  16. Calculate the equilibrium constant for the reaction at 298K 4 Br + O2 ...

    Text Solution

    |

  17. Calculate the equilibrium constant for the reaction at 298K Cu(s)+Cl...

    Text Solution

    |

  18. Write Nernst equation and calculate the e.m.f. of the following cell a...

    Text Solution

    |

  19. Write the Nernst equation and emf of the following cells at 298 K: Mg(...

    Text Solution

    |

  20. Calculate the e.m.f. of the cell at 25^(@)C Cr|Cr^(3+)(0.1M)||Fe^(2+)(...

    Text Solution

    |