Home
Class 12
CHEMISTRY
What is the standard reduction potential...

What is the standard reduction potential `(E^(@))` for `Fe^(3+) to Fe`?
Given that :
`Fe^(2+) + 2e^(-) to Fe, E_(Fe^(2+)//Fe)^(@)`=-0.47V
`Fe^(3+) + e^(-) to Fe^(2+), E_(Fe^(3+)//Fe^(2+))^(@) = +0.77V`

Text Solution

Verified by Experts

Bacause standard electrode potential `Ti^(4+)//Ti^(3+)` is less than of `Fe^(3+)//Fe^(2+)` so it cannot oxides `Fe^(II)` to `Fe^(III)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISRY

    RESONANCE ENGLISH|Exercise Advanced Level Problems|88 Videos

  • ELECTROCHEMISRY

    RESONANCE ENGLISH|Exercise Part 2|23 Videos

  • ELECTRO CHEMISTRY

    RESONANCE ENGLISH|Exercise PHYSICAL CHEMITRY (ELECTROCHEMISTRY)|53 Videos

  • EQUIVALENT CONCEPT & TITRATIONS

    RESONANCE ENGLISH|Exercise Part -IV|22 Videos

Similar Questions

Explore conceptually related problems

What is the standard reducing potential (E^(@)) for Fe^(3+)to Fe ? (Given that Fe^(2+)+2e^(-)rightarrowFe, E_(Fe^(2+)//Fe^(@)) =-0.47V Fe^(3+) + e^(-)to Fe^(2+) , E_(Fe^(3+)//Fe^(2+))^(@)= +0.77V

Given that the standard reduction potentials E ^(0) of Fe^(+2)|Feis 0.26V and Fe ^(+3) |Fe is 0.76V respectively. The E ^(@)of Fe ^(+2)|Fe^(+3) is:

Show that E_(Fe^(+3)//Fe^(+2))^(@) =3E_(Fe^(+3)//Fe)^(@)-2E_(Fe^(+2)//Fe)^(@)

If E_(Fe^(3+)//Fe)^(@) and E_(Fe^(2+)//Fe)^(@) are -0.36 V and 0.439 V respectively, then value of E_(Fe^(3+)//Fe^(2+))^(@) is

Given that E_(Fe^(2+)//Fe)^(.)=-0.44V,E_(Fe^(3+)//Fe^(2+))^(@)=0.77V if Fe^(2+),Fe^(3+) and Fe solid are kept together then

What is the electrode potential Fe^(3+)//Fe electrode in which concentration of Fe^(3+) ions is 0.1M Given E^(@)Fe^(3+)//Fe=+0.771V

If E^(o)""_(Fe^(+2)//Fe) is x_(1),E^(o)""_(Fe ^(+3)//Fe) is x_(2), then E^(o) ""_(Fe^(+3)//Fe^(2+)) will be :

The standard reduction potentials at 298K for the following half cells are given : ZN^(2+)(aq)+ 2e^(-)Zn(s) , E^(@) = - 0.762V Cr^(3+)(aq)+ 3e^(-) Cr(s) , E^(@) = - 0.740V 2H^(+) (aq)+2e^(-) H_(2)(g) , E^(@)= 0.000V Fe^(3+)(aq)+ e^(-) Fe^(2+)(aq) , E^(@) = 0.770V which is the strongest reducing agent ?

(i) On the basis of the standard electrode potential values stated for acid solutions, predict whether Ti^(4+) species may be used to oxidise Fe(II) to Fe(III) {:(Ti^(4+) + e^(-) to Ti^(3+), E^(@) = +0.01V), (Fe^(3+) + e^(-) to Fe^(2+), E^(@)= +0.77V):} (ii) Based on the data arrange Fe^(3+), Mn^(2+) " and " Cr^(2+) in the increasing order of stability of +2 oxidation state. (Give a brief reason) E_(Cr^(3+)//Cr^(2+))^(@) = -0.4V E_(Mn^(3+)//Mn^(2+))^(@) = +1.5V E_(Fe^(3+)//Fe^(2+))^(@) = +0.8V

At equimolar concentration of Fe^(2+) and Fe^(3+) , what must [Ag^(+)] be so that the voltage of the galvanic cell made from the (Ag^(+) | Ag) and (Fe^(3+)|Fe^(2+) electrodes equals zero? Fe^(2+) + Ag^(+) rightarrow Fe^(3+) + Ag E_(Ag^(+), Ag)^(@) = 0.7991, E_(Fe^(3+)//Fe^(2+))^(@) = 0.771

RESONANCE ENGLISH-ELECTROCHEMISRY-CBSE Problems
  1. What is corrosion? Describe the electrochemical phenomenon of rusting ...

    Text Solution

    |

  2. How much charge is required for the reduction of 1 mole of Cu^(2+) to...

    Text Solution

    |

  3. What is the standard reduction potential (E^(@)) for Fe^(3+) to Fe? ...

    Text Solution

    |

  4. The conductivity of 0.20 M solution of KCl at 298 k is 0.023 S cm^(-1)...

    Text Solution

    |

  5. What will be standard cell potential of galvanic cell with the followi...

    Text Solution

    |

  6. The resistance of conductivity cell containing 0.001 M- KCl solution a...

    Text Solution

    |

  7. Three electrolytic celss A,B,C containing solutions of ZnSO(4),AgNO(3)...

    Text Solution

    |

  8. (a). Explain why electrolysis of an aqueous solution of NaCl gives H(2...

    Text Solution

    |

  9. A copper - silver cell is set up . The copper ion concentration in it...

    Text Solution

    |

  10. (a) Corrosion is essentially an electrochemical phenomenon. Explain th...

    Text Solution

    |

  11. Calculate the cell e.m.f. and DeltaG for the cell reaction at 298K for...

    Text Solution

    |

  12. What is meant by limiting molar conductivity?

    Text Solution

    |

  13. Given that the standard electrode (E^(@)) of metals are : K^(+)//K=-...

    Text Solution

    |

  14. Express the relation among cell constant , resistance of the solution ...

    Text Solution

    |

  15. Two half cell reactions of an electrochemical cell are given below : ...

    Text Solution

    |

  16. Definie conductivity and molar conductivity for the solution of an ele...

    Text Solution

    |

  17. A copper - silver cell is set up. The copper ion concentrations is 0.1...

    Text Solution

    |

  18. Express the relation between.conductivity and molar conductivity of a ...

    Text Solution

    |

  19. The chemistry of corrosion of iron is essentially an electrochemical p...

    Text Solution

    |

  20. Determine the value of equilibrium constant and for the following ...

    Text Solution

    |