Home
Class 12
CHEMISTRY
How many hours does it take to reduce 3 ...

How many hours does it take to reduce 3 moles of `Fe^(3+)` to `Fe^(2+)` with 2A current intensity ?

Text Solution

AI Generated Solution

To solve the problem of how many hours it takes to reduce 3 moles of \( \text{Fe}^{3+} \) to \( \text{Fe}^{2+} \) with a current intensity of 2 A, we can follow these steps: ### Step 1: Write the half-reaction The half-reaction for the reduction of iron is: \[ \text{Fe}^{3+} + e^- \rightarrow \text{Fe}^{2+} \] This indicates that 1 mole of \( \text{Fe}^{3+} \) requires 1 mole of electrons for reduction. ...
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    ICSE|Exercise ISC EXAMINATION QUESTIONS (PART-II Descriptive Questions) |11 Videos
  • DISTINCTION BETWEEN PAIRS OF COMPOUNDS

    ICSE|Exercise QUESTIONS |155 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    ICSE|Exercise EXERCISE (PART-I ( OBJECTIVE QUESTIONS )) (Fill in the blanks)|60 Videos

Similar Questions

Explore conceptually related problems

How many faradays are required to reduce one mole of Cr_(2)O_(7)^(-2)to Cr^(+3) ?

Calculate the magnetic moments of Fe^(2+) and Fe^(3+)

Fe^(3+) is reduced to Fe^(2+) by using

The number of atoms in 3.4 moles of Fe are?

How many hours are needed to deposit the metal based on the reaction . Fe^(2+)(aq) + 2e^(-) to Fe(s) . using a current strength of 0.02amp.

Which is more stable Fe^(2+) or Fe^(3+)? Why ?

The number of atoms in 2.4 moles of Fe are?

How many coulombs are required for the following oxidation? one mole of FeO to Fe_(2)O_(3)

Determine the equilibrium constant of the reaction at 298 K, 2Fe^(3+) +Sn^(2+) hArr 2Fe^(2+) +Sn^(4+) From the obtained value of the equilibrium constant, predict whether Sn^(2+) ions can reduce Fe^(3+) to Fe^(2+) quantitatively or not. Given: E_(Fe^(3+),Fe^(2+)//Pt)=0.771V.E_(Sn^(4+)//Sn^(2+)//Pt)^(Theta)=0.150V . [R=8.314JK^(-1)"mol"^(-1)]

What volume at STP of CO is required to reduce one mole of Fe_2O_3 in the following reaction Fe_2O_3 + CO to Fe + CO_2

ICSE-ELECTROCHEMISTRY-ISC EXAMINATION QUESTIONS (PART-II Numerical Problems)
  1. A cell is constructed by dipping a zinc rod in 0.1 M zinc nitrate solu...

    Text Solution

    |

  2. For the cell : Zn"|"Zn^(2+) (a=1)"||"Cu^(2+) (a=1)"|"Cu Given that ...

    Text Solution

    |

  3. Calculate the equivalent conductivity of 1M H(2)SO(4), whose specific...

    Text Solution

    |

  4. A current of 10 A is passed for 80 min and 27 seconds through a cell ...

    Text Solution

    |

  5. Calculate E("cell") at 25^(@)C for the reaction : Zn+Cu^(2+) (0.2...

    Text Solution

    |

  6. A 0.05 M NaOH solution offered a resistance of 31.6 ohms in a conduct...

    Text Solution

    |

  7. For the following cell, calculate the emf: Al//Al^(3+) (0.01 M)"||"...

    Text Solution

    |

  8. A solution of 0.1 N KCl offers a resistance of 245 ohms. Calculate th...

    Text Solution

    |

  9. How many electrons will flow when a current of 5 amperes is passed thr...

    Text Solution

    |

  10. Consider the reaction 2Ag^(+) +Cd to 2Ag to 2Ag +Cd^(2+). The stan...

    Text Solution

    |

  11. Calculate the maximum work that can be obtained from the given electr...

    Text Solution

    |

  12. Calculate the value of E("cell") at 298 K for the following cell: ...

    Text Solution

    |

  13. 0*05 " M " NaOH solution offered a resistance of 31*6 ohm in a conduct...

    Text Solution

    |

  14. 0*3605 g of a metal is deposited on the electrode by passing 1*2 amper...

    Text Solution

    |

  15. How many hours does it take to reduce 3 moles of Fe^(3+) to Fe^(2+) wi...

    Text Solution

    |

  16. Calculate the emf of the following cell reaction at 298 K: Mg(s) +C...

    Text Solution

    |

  17. The specific conductance of a 0.01 M solution of acetic acid at 298 K...

    Text Solution

    |

  18. Calculate the number of coulombs required to deposit 5.4g of Al when ...

    Text Solution

    |

  19. A 0.05 M NH OH solution offers the resistance of 50 ohms to a conduct...

    Text Solution

    |