Home
Class 12
CHEMISTRY
Given the data at 25^(@)C, Ag + I^(-) t...

Given the data at `25^(@)C,`
`Ag + I^(-) to AgI + e^(-), E^(@) = 0.152V`, `Agto Ag^(+)+ e^(-), E^(@) = -0.800V` What is the value of log K-sp For AgI ? `((2.303 (RT)/(F) = 0.059V))`

A

`-37.83`

B

`-16.13`

C

`-8.13`

D

`+8.612`

Text Solution

Verified by Experts

The correct Answer is:
B
`Ag+I^(-)toAgI+e^(-)," "E^(@)=0.152V`
`underset(Ag^(+)+e^(-)toAg," "E^(@)=0.800V)`
`Ag^(+)+E^(-)toAgI," "E_(cell)^(@)=0.952V`
At equilibrium: `E^(@)=(2303RT)/(F)logK_(c)`
but `K_(c)=([Agi])/([Ag^(+)][I^(-)])=(1)/(K_(sp))`
`therefore0.952=-(2.303RT)/(F)"log "K_(sp)=-0.059" log "K_(sp)`
or `lgoK_(sp)=-16.13`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    PRADEEP|Exercise VALUE BASED QUESTIONS WITH ANWER (Multiple Choice Questions-II)|7 Videos

  • ELECTROCHEMISTRY

    PRADEEP|Exercise VALUE BASED QUESTIONS WITH ANWER (Multiple Choice Questions-III Based on the given Passage/Comprehension)|13 Videos

  • ELECTROCHEMISTRY

    PRADEEP|Exercise HIGHER ORDER THINKING SKILLS (HOTS PROBLEMS)|13 Videos

  • D- AND F-BLOCK ELEMENTS

    PRADEEP|Exercise IMPORTANT QUESTIONS|30 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    PRADEEP|Exercise Curiosity Questions|2 Videos

Similar Questions

Explore conceptually related problems

Given the data 25^(@) C , Ag+ I^(-) to AgI+e^(-) , E^(@) = 0.152V Ag to Ag^(+) + E(-) , E^(@) = - 0.800V What is the value of K_(sp) for AgI?

Given the data at 25^(@)C Ag+I^(-)rarrAgl+e^(-)" "E^(@)=0.152V Ag rarrAg^(+)+e^(-)E^(@)=-0.800V What is the value of log K_(sp) for AgI?

Given the data 25^0 C, Ag+I^(-) rarr AgI+e^- E^0=1.52V Agrarr Ag^++e^_ E^0=-0.800V What is the value of log K_(sp) for Agl ? (2.303 RT//F=0.059V)

At 25^(@)C, {:(Ag+I^(-)rarr,AgI+e,,E^(@) =0.152V),(Agrarr,Ag.^(+)+e,,E^(@) =- 0.80V):} The log K_(sp) of AgI is: ((2.303RT)/(F)=0.059)

AgBr (s) harr Ag^(+) (aq) + Br^(-) (aq); E^(@) = -0.72V If the value of K_(sp) at 25^(@)C is 10^(-b) then the value of "b" is Use (2.303RT)/(F) = 0.06 )

For Zn^(2+) //Zn, E^(@) =- 0.76 , for Ag^(+)//Ag, E^(@) = -0.799V . The correct statement is

PRADEEP-ELECTROCHEMISTRY-VALUE BASED QUESTIONS WITH ANWER (Multiple Choice Questions-I)
  1. A fuel cell involves combustion of butane at at 1 atm and 298 K unders...

    Text Solution

    |

  2. If the E(cell)^(@) for a given reaction has a positive value, then whi...

    Text Solution

    |

  3. The half cell reaction for rusting of iron are: 2H^(+)+2e^(-)+(1)/(2...

    Text Solution

    |

  4. In the electrolysis of which solution OH^(-) ions are discharged in p...

    Text Solution

    |

  5. Which pair of electrolytes could not be distinguished by the products ...

    Text Solution

    |

  6. The metal that cannot obtained by electrolysis of an aqueous solution ...

    Text Solution

    |

  7. In the lead-acid battery during charging, the cathode reaction is

    Text Solution

    |

  8. In a fuel cell methanol is used as fuel and oxygen gas is used as an o...

    Text Solution

    |

  9. Rust is a mixture of

    Text Solution

    |

  10. Galvanisation is applying a coating of

    Text Solution

    |

  11. Zine can be coated on iron to produce galvanize3d iron but the reverse...

    Text Solution

    |

  12. A galvanic cell is set up from a zinc bar weighing 100g and 1.0L of 1....

    Text Solution

    |

  13. For the half-cell raction, 2H(2)O+2e^(-)toH(2)+2OH^(-),E^(@)=-0.8277V ...

    Text Solution

    |

  14. A lead storage battery has been used for one month (30 days) at the ra...

    Text Solution

    |

  15. Given the data at 25^(@)C, Ag + I^(-) to AgI + e^(-), E^(@) = 0.152V,...

    Text Solution

    |

  16. The Gibbs energy for the decomposition of Al(2)O(3) at 500^(@)C is as ...

    Text Solution

    |

  17. For a cell reaction 2H2(g)+O2(g)to2H2O(l)/\rS(198)^(@)=-0.32KJ//k . Wh...

    Text Solution

    |

  18. consider the following statements: When a direct current is passed t...

    Text Solution

    |

  19. AgNO(3)(aq) was added to an aqueous KCl soluton gradually and the codu...

    Text Solution

    |

  20. The electrode potentials for Cu^(2+)+e^(-)toCu^(+) and Cu^(+)e^(-)...

    Text Solution

    |