Home
Class 12
CHEMISTRY
E^@ for the half cell Zn^(2+)|Zn is -0.7...

`E^@` for the half cell `Zn^(2+)|Zn` is `-0.76V` emf of the cell
`Zn|Zn^(2+) (1M) |2H^+ (1M) |H_2 (1atm)` is

A

`-0.76V`

B

`+0.76V`

C

`-0.38V`

D

`+0.38V`

Text Solution

Verified by Experts

B
Promotional Banner

Topper's Solved these Questions

  • ELECTROMOTIVE FORCE

    BODY BOOKS PUBLICATION|Exercise PROBLEMS |50 Videos
  • ELECTROCHEMISTRY

    BODY BOOKS PUBLICATION|Exercise EXAMPLES|134 Videos
  • General Principles and Processes of Isolation of Elements

    BODY BOOKS PUBLICATION|Exercise Example|108 Videos

Similar Questions

Explore conceptually related problems

E^@ for the reaction Fe+Zn^(2+)=Zn+Fe^(2+) is -0.35 V. The given cell reaction is

Calculate the emf of the following cells, find their cells reactions using E^@ values from the table? Zn|ZnO_2^(2-) (0.1M), OH^(-) (1M) |HgO|Hg In each case, is the reaction as written spontaneous or not?

E^(@) for the electrochemical cell Zn(s) | Zn^(2+)1M (aq)|| Cu^(2+) 1M(aq)| Cu (s) is 1.10 V at 25^(@) C. The equilibrium constant for the cell reaction, Zn(s)+Cu^(2+) (aq.) rarr Zn^(2+) (aq.) + Cu(s) will be:

E_(cell)^@ for Zn(s)+Pb^(2+) (1M ) to Zn^(2+) (1M) +Pb(s) is 0.66 volt. E_(cell) for the reaction Zn(s)+Pb^(2+) (0.1M) to Zn^(2+) (0.1M) +Pb(s) is

Write the half reactions for the following redox reaction. Zn(s) + 2H^+ (aq) rarr Zn^(2+) (aq) + H_2(g)

Construct galvanic cells from the following pairs of half cells and calculate their emf. Cu|Cu^(2+) (1M) and underset((1M)) Cl^-| underset((1 atm)) Cl_2 Pt

Write the Nernst equation and emf of the following cells at 298 K. Sn_(s)//Sn^(2+) (0.050M) II H^+ (0.02M)//H_2(g) (1 bar) 1 Pt(S), E^0 Sn^(2+)//Sn=-0.14 V .

The standard reduction potentials E^@ for the half reactions are as Zn=Zn^(2+)+2e, E^@=+0.76V Fe=Fe^(2+)+2e, E^@=+0.41V the emf of the cell reaction, Fe^(2+)+Zn=Zn^(2+)+Fe is

The standard potentials, E^@ for the half reaction are as Zn=Zn^(2+)+2e^(-) , E^@=0.76V Fe=Fe^(2+)+2e^(-) , E^@=0.41V The emf for the cell reaction Fe^(3+) +Zn to Zn^(2+)+Fe is

EMF of Daniel cell was found using different concentrations of Zn^2+ ion and Cu^2+ion. A graph was then plotted between E cell and log[Zn2+]/[Cu2+]. The plot was found to be linear with intercept in E cell ​axis equal to 1.1 V. Calculate E cell for Z n / Zn^2 +(0.1 M) / / Cu^2+(0.0 1M) / Cu

BODY BOOKS PUBLICATION-ELECTROMOTIVE FORCE -EXERCISE
  1. Is 1M H^+ solution under hydrogen gas at 1 atm capable of oxidising Ag...

    Text Solution

    |

  2. The potential of hydrogen electrode is -118mV. The concentration of H^...

    Text Solution

    |

  3. E^@ for the half cell Zn^(2+)|Zn is -0.76V emf of the cell Zn|Zn^(2+...

    Text Solution

    |

  4. The standard reduction potentials at 298K for the following half react...

    Text Solution

    |

  5. The standard reduction potentials E^@ for the half reactions are as ...

    Text Solution

    |

  6. From the following E^@ values of half cells, (i) A+e to A^(-) , E^@=...

    Text Solution

    |

  7. From the following E^@ values of half cells (i) A to A^(+)+e, E^@=+1...

    Text Solution

    |

  8. From the following E^@ values of half cells (i) A^(3-)to A^(2-) +e,...

    Text Solution

    |

  9. IF the following half cells have the E^@ values as Fe^(3+)+e to Fe^(...

    Text Solution

    |

  10. E^@ (red.) values of the half cells Mg^(2+)//Mg and Cl2//Cl^- are resp...

    Text Solution

    |

  11. For the cell reaction Zn(s)+Mg^(2+) (1M)=Zn^(2+) (1M) +Mg, the emf has...

    Text Solution

    |

  12. E^@ for F2+2e=2F^(-) is 2.8V, E^@ for 1/2 F2+e=F^(-) is

    Text Solution

    |

  13. Delta G^@ of the cell reaction AgCl(s)+1/2H2(g)=Ag(s)+H^+ +Cl^(-) is ...

    Text Solution

    |

  14. The value of equilibrium constant for the feasible cell reaction is

    Text Solution

    |

  15. E^@ for the reaction Fe+Zn^(2+)=Zn+Fe^(2+) is -0.35 V. The given cell...

    Text Solution

    |

  16. A galvanic cell is composed of two hydrogen electrodes, one of which i...

    Text Solution

    |

  17. 1/2 H2(g)+AgCl(s)=H^+ (aq)+Cl^(-) (aq)+Ag(s) occurs in the galvanic c...

    Text Solution

    |

  18. For the cell Tl|Tl^(+) (0.001M) ||Cu^(2+) (0.1M) |Cu. E(cell) at 25^@C...

    Text Solution

    |

  19. (i) E^@ (Cu^(2+),Cu)=0.34V (ii) E^@(Cu^+,Cu)=+0.52V (iii) E^@[O2(...

    Text Solution

    |

  20. Given below the half cell reactions Mn^(2+)+2e to Mn, E^@=-1.18V 2...

    Text Solution

    |