Home
Class 12
CHEMISTRY
How many coulombs of electricity are req...

How many coulombs of electricity are required for the reduction of 1 mole of `MnO_(4)^(-)` to `Mn^(2+)` ?

Text Solution

Verified by Experts

Reduction of 1 mol of `MnO_(4)^(-)` to `Mn^(2+)`
` MnO_(4)^(-) + 8 H^(+) + 5 e^(-) to Mn^(2+) + 4 H_(2) O`
Reduction of 1 mol of `MnO_(4)^(-)` requires = `5 xx 96500 C`
`= 4.825 xx 10^(5)` C .
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise PROBLEMS|11 Videos
  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise PRACTICE PROBLEMS|57 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

The charge required for the reduction of 1 mol of MnO_(4)^(-) to MnO_(2) is

How many coulombs are required for the reduction of 1 mol of MnO_(4)^(-) " to " Mn^(2+) ?

How many coulombs of electricity are required for the process : (iii) reduction of 1 mol of F_2 to 2F^(-) ?

How many coulombs of electricity are required for complete oxidation of 90 g of H_(2)O ?

The charge required for reducing 1 mole of MnO_4^(-) to Mn^(2+) is

MODERN PUBLICATION-ELECTROCHEMISTRY -UNIT PRACTICE TEST
  1. How many coulombs of electricity are required for the reduction of 1 m...

    Text Solution

    |

  2. What is the souce of electrical energy in a galvanic cell ?

    Text Solution

    |

  3. Which reaction occurs at cathode in a galvanic cell ?

    Text Solution

    |

  4. The value of DeltaG^(@) in the Daniell cell has been found to be -212....

    Text Solution

    |

  5. Suggest two materials other than hydrogen that can be used as fuels in...

    Text Solution

    |

  6. FUEL CELLS

    Text Solution

    |

  7. Which of the following reactions occurs at the anode during the rechar...

    Text Solution

    |

  8. The solution of nickel sulphate in which nickel rod is dipped is dilut...

    Text Solution

    |

  9. Why a dry cell becomes dead after a long time even if it is not used ?

    Text Solution

    |

  10. Is e.m.f. an extensive or intensive property ?

    Text Solution

    |

  11. From the given cells : Answer the following : (i) Which cell ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. How can we prevent rusting of Iron?

    Text Solution

    |

  17. Can we store copper sulphate solution in zinc vessel ?

    Text Solution

    |

  18. Explain Effect of dilution on molar conductivity .

    Text Solution

    |

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

    Text Solution

    |

  20. What are fossil fuels ? Give one example.

    Text Solution

    |

  21. The unit of cell constant is -

    Text Solution

    |