Home
Class 12
CHEMISTRY
A hydrogen electrode placed in a buffer ...

A hydrogen electrode placed in a buffer solution of `CH_3COONa` and acetic acid in the ratio.s`x:y` and `y:x` has electrode potential values `E_1` volt and `E_2` volt respetively at `25^@C` the pKa values of acetic acid is (E_1 and _2 are oxidation potential ):

A

`(E_1+E_2)//(0.118)`

B

`(E_2+E_1)/(0.118)0`

C

`-(E_1 +E_2)//(0.118)`

D

`(E_1+E_2)//(0.118)0`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • COORDINATION COMPOUNDS

    MBD PUBLICATION|Exercise QUESTION BANK|914 Videos

  • ENVIRONMENTAL CHEMISTRY

    MBD PUBLICATION|Exercise QUESTION BANK|299 Videos

Similar Questions

Explore conceptually related problems

The reduction electrode potential E of 0.1 M solution of M^+ ions (E^o(rp) = -2.36V ) is :

The standard electrode potentials of three metals X, Y and Z are -1.2 V, +0.5V and -3.OV respectively. The reducing power of these metals will be

The electric potential at a point is V = x^2y + yz . What is electric field at a point (1,3,1)?

What is the pH of a 1 M CH_3COONa solution? K_2 of acetic acid = 1.8 xx 10^-5 and K_w = 10^-14 mol^2 litre^-2:

Prove that e^x-2=0 has a solution between 0 and 1.

Write the differential equation having y=C_1e^x+C_2e^x as its general solution.

A gas X at 1 atm is bubbled through a solution containg a mixture of 1 M Y^- and 1M Z^- at 25^@C . If the reduction potential of Z gt Y gt X , then :

MBD PUBLICATION-ELECTROCHEMISTRY-QUESTION BANK
  1. A current is passed through two valtameters connected in series. The f...

    Text Solution

    |

  2. The time required to coat a metal surface of 80 cm^2 with 5xx10^(-3) c...

    Text Solution

    |

  3. A hydrogen electrode placed in a buffer solution of CH3COONa and aceti...

    Text Solution

    |

  4. The amount of energy expanded during the passage of one ampere current...

    Text Solution

    |

  5. The cell reaction for the given cell is :Pt(H2)|pH=2||pH=3|Pt(H2)

    Text Solution

    |

  6. The cell reaction for the given cell is spontaneous if :Pt(H2)|H^=(1M)...

    Text Solution

    |

  7. The cell reaction for the given cell is spontaneous if :Pt | Cl2|CI^(-...

    Text Solution

    |

  8. Passage of threee faraday of charge through aqueous solution of AgNO3,...

    Text Solution

    |

  9. The approximate emf of a dry cell is :

    Text Solution

    |

  10. Which gains electrons more easily :

    Text Solution

    |

  11. Which will increase the voltage of the cell Sn(s) +2Ag^+(aq)rarr Sn^(...

    Text Solution

    |

  12. During electrolysis of fused CaH2,H2 is liberated at :

    Text Solution

    |

  13. Which defines the standard reduction electrode potential of Zn^(2+) io...

    Text Solution

    |

  14. In which cell, electrical energy is converted into chemical energy:

    Text Solution

    |

  15. E^@ for Fe^(2+) +2e rarrFe is -0.44 volt and E^@ for Zn^(2+) +2e rarrZ...

    Text Solution

    |

  16. In a galvanic cell, which is wrong :

    Text Solution

    |

  17. Using same quantity of current , which among Na, Mg and AI is deposite...

    Text Solution

    |

  18. A metal having negative reduciton potential when dipped in the solutio...

    Text Solution

    |

  19. In electrochemical corrosion of metals, the metal undergoing corrosion...

    Text Solution

    |

  20. The metal which cannot liberate H2 from hydrochloric acid is :

    Text Solution

    |