Home
Class 12
PHYSICS
I(2)(s)|I^(-)(0.1M) half cell is connect...

`I_(2)(s)|I^(-)`(0.1M) half cell is connected to a `H^(+)` (aq)|`H_(2)`(1 bar)|Pt half celland e.m.f. is found to be 0.7714 V. If `E_(I_(2)|I^(-))^(@)`=0.535 V, find the pH of `H^(+)|H_(2)` half cell.

A

1

B

3

C

5

D

7

Text Solution

Verified by Experts

The correct Answer is:
B
The cell reaction is
`H_(2 (g)) + I_(2 (s)) hArr 2H_((aq))^(+) + 2I_((aq))^(+)`
`07714=0.535-(00591)/(2)log "([H^(+)]^(2)[I^(-)]^(2))/(P_(H_2))`
pH =3
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST 1

    CAREER POINT|Exercise PART (B) - CHEMISTRY|29 Videos

  • MAJOR TEST

    CAREER POINT|Exercise PHYSICS|30 Videos

  • MOCK TEST 10

    CAREER POINT|Exercise PART (B) - CHEMISTRY|30 Videos

Similar Questions

Explore conceptually related problems

For the half-cell given Pt( H_(2) , 1 atm ) | H^+ pH = 2, the cell potential is :

For the cell Pt_((s)), H_(2) (1 atm)|H^(+) (pH=2)||H^(+) (pH=3)|H_(2) (1atm),Pt The cell reaction is

Given the cell: Cd(s)|Cd(OH)_2(s)|NaOH(aq,0.01M)|H_2(g,1"bar")|Pt(s) with E_(cell)=0.0V."if"E_(Cd^(2+)|Cd)^(@)=-0.39V,"then"K_(sp)"of"Cd(OH_2) is:

The cell designed as Pt_(H_(2))|HCl_(aq)||Hg_(2)Cl_(2),0.01 N KCl|Hg has emf of 0.271 V at 298 K and 0.2669 at 308 K . The E_(H_(2)^(2+)//Hg) is 0.260 V The temperature coefficient of cell is :

Construct at cell consisting of Ni_((ag))^(2+)| Ni_((s)) half cell and H^(+) ||H_(2(g)) | Pt half cell (a) Write the cell reaction ( b) Calculate emf of the cell if cell [Ni^(2+)] = 0.1 [ H^(+)] =0.05 M and E_(Ni)^(0) =- 0.257 V

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.

CAREER POINT-MOCK TEST 1-PART (B) - CHEMISTRY
  1. For the redox reaction , MnO(4)^(-) + C(2)O(4)^(-2) + H^(+) to Mn^...

    Text Solution

    |

  2. The density of gas A is twice that of B at the same temperature the mo...

    Text Solution

    |

  3. I(2)(s)|I^(-)(0.1M) half cell is connected to a H^(+) (aq)|H(2)(1 bar)...

    Text Solution

    |

  4. Which of the following statement is/are correct ? I . The ligand th...

    Text Solution

    |

  5. A six coordination complex of formula CrCl(3)*6H(2)O has green colour....

    Text Solution

    |

  6. Which one of the following ions exhibit highest magnetic moment ?

    Text Solution

    |

  7. Which of the following gaseous molecule is non-linear ?

    Text Solution

    |

  8. Select incorrect order

    Text Solution

    |

  9. In psi(321), the sum of angular momentum, spherical nodes and angular ...

    Text Solution

    |

  10. A solid is formed and it has three types of atoms X, Y and Z, X forms ...

    Text Solution

    |

  11. The heat of formation of NH(3)(g) is -46 " kJ mol"^(-1). The DeltaH (i...

    Text Solution

    |

  12. NH(4)HS(s)hArrNH(3)(g)+H(2)S(g) The3 equilibrium pressure at 25^(@)C ...

    Text Solution

    |

  13. Calculate depression of freezing point for 0.56 molal aq. Solution of ...

    Text Solution

    |

  14. A graph plotted between log t(50%) vs log concentration is a straight ...

    Text Solution

    |

  15. Identify Bronsted -Lowry acids in the reactions given . [Al(H(2)O)(6...

    Text Solution

    |

  16. 2.4 g of pure Mg (at. Mass = 24) is dropped in 100 mL of 1 M HCl . Whi...

    Text Solution

    |

  17. Among the following which Statement is incorrect ?

    Text Solution

    |

  18. Identify 'Z' in the given sequence of reaction .

    Text Solution

    |

  19. (X)overset(KOH+CHCl(3))rarr(Y)overset(LiAlH(4))rarrCH(3)CH(2)NHCH(3) ...

    Text Solution

    |

  20. The IUPAC name of is -

    Text Solution

    |