Home
Class 12
CHEMISTRY
For the half cell At pH=2. Electro...

For the half cell

At `pH=2`. Electrod potential is `:`

A

`1.36V`

B

`1.30 V`

C

`1.42 V`

D

`1.20 V`

Text Solution

Verified by Experts

The correct Answer is:
3
`E=E^(@)-(0.059)/(2)"log of "[H^(+)]^(2)`
Promotional Banner

Topper's Solved these Questions

  • DPP

    RESONANCE|Exercise QUESTIONS|223 Videos

  • ELECTROCHEMISRY

    RESONANCE|Exercise Advanced Level Problems|88 Videos

Similar Questions

Explore conceptually related problems

For the half cell At pH=2 , the electrode potential is

For the half cell At pH = 3 electrode potential is

when two half-cells of electrode potential of E_1 and E_2 are combined to form a half cell of electrode potential E_3 , then (when n_1,n_2"and"n_3 are no. of electrons exchanged in first second and combined half-cells:

What is the electrode potential of a gasous hydrogen electrode dipped in a solution pH=5.0 relative to the calomel electrode with an electrode potential of +0.28V ?

Calculating the emf from standard potentials: A galvanic cell consists of an Al electrode in a 1.0M Al(NO_(3))_(3) solution and an Fe electrode in a 1.0M Fe(NO_(3))_(2) solution. Calculate the standard emf of this electrohemical cell at 25^(@)C . Also write the cell reaction. Strategy: From the table of standard electrode potentials, write the two reduction half reaction and standard electrode potentials for the cell. Change the direction of the half-cell reaction corresponding tol the smaller (or more negative) electrode potential. Multiply the when the half-reactions are added the electrons cancel. The sum of the half-reactions is the cell reaction. Add the electrode potentials to get the cell emf.

RESONANCE-ELECTRO CHEMISTRY-PHYSICAL CHEMITRY (ELECTROCHEMISTRY)
  1. 0.169 gram of copper is deposited on the cathode by a current of 32 mi...

    Text Solution

    |

  2. Using the standard electrode potential values given below, decide whi...

    Text Solution

    |

  3. For the half cell At pH=2. Electrod potential is :

    Text Solution

    |

  4. In the electrolysis of an aqueous potassium sulphate solution, the Ph ...

    Text Solution

    |

  5. How many electrons are there in one coulomb of electricity?

    Text Solution

    |

  6. Electrolysis can be used to determine atomic masses. A current of 0.55...

    Text Solution

    |

  7. Calculate the current ( in Ma) required to deposit 0.195 g of platinum...

    Text Solution

    |

  8. An aqueous solution containing 1M each of Au^(3+),Cu^(2+),Ag^(+),Li^(...

    Text Solution

    |

  9. Based on the following information arrange four metals A,B,C and D in ...

    Text Solution

    |

  10. The standard electrode potential for the following reaction is +1.33V...

    Text Solution

    |

  11. Ag|AgCl|Cl^(-)(C(2))||Cl^(-)(C(1))||AgCl|Ag for this cell DeltaG is ne...

    Text Solution

    |

  12. Resistance of a decimolar solution between two electrodes 0.02 meter a...

    Text Solution

    |

  13. Equivalent conductivity of Fe(2)(SO(4))(3) is relative to molar condu...

    Text Solution

    |

  14. The limiting equivalent conductivity of NaCl, KCl and KBr are 126.5,1...

    Text Solution

    |

  15. The resistance of 0.1N solution of formic acid is 200 ohm and cell con...

    Text Solution

    |

  16. Given that ( ohm^(-1) cm^(2)eq^(-1)), T=298 K {:(lambda(E)^(oo) f o...

    Text Solution

    |

  17. Na- amalgam is prepared by electrolysis of NaCl solution using liquid...

    Text Solution

    |

  18. Find the thickness of the electro silver if the surface area over whic...

    Text Solution

    |

  19. In the given figure the electrolytic cell contains 1L of an aqueous 1M...

    Text Solution

    |

  20. The equilibrium Cu^(. .)(aq)+Cu(s) hArr2Cu^(.) established at 20^(@)...

    Text Solution

    |