Home
Class 12
CHEMISTRY
The emf of a cell corresponding to the r...

The emf of a cell corresponding to the reaction
`Zn +2H^(+)(aq) rarr Zn^(2+) (0.1M) +H_(2)(g) 1` atm is `0.28` volt at `25^(@)C`. Calculate the `pH` of the solution at the hydrogen electrode.
`E_(Zn^(2+)//Zn)^(@) =- 0.76` volt and `E_(H^(+)//H_(2))^(@) = 0`

Text Solution

Verified by Experts

The correct Answer is:
8,6
Promotional Banner

Topper's Solved these Questions

  • D & F BLOCK ELEMENTS

    IIT-JEE PREVIOUS YEAR (CHEMISTRY)|Exercise Objective (Q-2)|1 Videos

  • EXTRACTION OF METALS

    IIT-JEE PREVIOUS YEAR (CHEMISTRY)|Exercise JEE Main And Advanced|88 Videos

Similar Questions

Explore conceptually related problems

The emf of a cell corresponding to the reaction. Zn(s)+ 2H^(+)(aq)rightarrow Zn^(2+)(0.1M)+H_(2) (g,1atm) is 0.28 V at 25^(@) C . Calculate pH of the solution.

Emf of a cell corresponding to the reaction:- Zn(s) +2H^(+) (aq) rarr Zn^(2+)(aq) [0.1M] +H_(2)(g) [1.0atm] is 0.49V at 25^(@)C, E_(Zn^(2+)//Zn)^(@) = - 0.76 V . The pH of solution in cathode chamber is.

The emf of a cell corresponding to the following reaction is 0.0199 V at 298 K. Zn(s) + 2H^(+)(aq) rightarrow Zn^(2+)(0.1M) + H_(2)(g)(E_(Zn//Zn^(2+))^(@) = 0.76V The approximate pH of the solution at the electrode where hydrogen is being produced is [pH_(2) = 1 atm] :

For the cell Zn(s) + 2H^(+)(aq) rightarow Zn^(2+)(aq) + H_(2)(g) , E^(@) = 0.76 V Which change will increase the voltage of the cell?

The e.m.f. of a cell corresponding to the reaction : Zn_((s))+2H_((aq.))^(+) rarr underset((0.1 M))(Zn^(2+))+underset((1 atm))(H_(2(g)) is 0.28 V at 25^(@)C and E_(Zn//Zn^(2+))^(@) = 0.76V . (i) Write half cell reactions. (ii) Calculate pH of the solution at H electrode.

IIT-JEE PREVIOUS YEAR (CHEMISTRY)-ELECTROCHEMISTRY-JEE Main And Advanced
  1. Find the solubility product of a saturated solution of Ag(2)CrO(4) in ...

    Text Solution

    |

  2. Calculate the equilibrium constant for the reaction, 2Fe^(3+)+3I^(-)hA...

    Text Solution

    |

  3. Calculate the equilibrium constant for the reaction : Fe^(2+)+Ce^(4+)h...

    Text Solution

    |

  4. The standard reduction potential for Cu^(2+)|Cu is +0.34V. Calculate t...

    Text Solution

    |

  5. An excess of liquid mercury is added to an acidicfied solution of 1.0x...

    Text Solution

    |

  6. The standard reduction potential of the Ag^(o+)|Ag electrode at 298K i...

    Text Solution

    |

  7. Zinc granules are added in excess to 500mL OF 1.0m nickel nitrate solu...

    Text Solution

    |

  8. The standard reduction potential of Cu^(2+)|Cu and Ag^(o+)|Ag electrod...

    Text Solution

    |

  9. The standard reduction potential at 25^(@)C of the reaction 2H(2)O+2...

    Text Solution

    |

  10. The emf of a cell corresponding to the reaction Zn +2H^(+)(aq) rarr ...

    Text Solution

    |

  11. Give reasons in one or two sentences "Anhydrous HCl is a bad conduct...

    Text Solution

    |

  12. Consider the cell, Zn|Zn^(2+)(aq)(1.0M)||Cu^(2+)(aq)(1.0M)|Cu The st...

    Text Solution

    |

  13. All the energy realesed from the reation X rarr Y, Delta(r) G^(@) = -1...

    Text Solution

    |

  14. The standard reduction potentials of Cu^(2+)//Cu and Cu^(2+)//Cu^(+) a...

    Text Solution

    |

  15. Calculate A^(oo) (in Scm^(2)"mol"^(-1)) for NH(4)OH, given that value ...

    Text Solution

    |

  16. If the solution of CuSO(4) in which Cu rod is immersed at 25^(@)C is d...

    Text Solution

    |

  17. Which one of the following statements is (are) false in a concentratio...

    Text Solution

    |

  18. Which one of the following statements is (are) true regarding galvanic...

    Text Solution

    |

  19. Assertion When acidic solution of KMnO(4) is added from burette to a b...

    Text Solution

    |

  20. Assertion Decreasing concentration by dilution increases the equivalen...

    Text Solution

    |