Home
Class 12
CHEMISTRY
A cell contains two copper electrodes. T...

A cell contains two copper electrodes. The negative electrode is in contact with a solution of `10^(-6)M[Cu^(2+)]` ions. The emf of the cell is 0.118V at `25^(@)C`. Calculate the `[Cu^(2+)]` at positive electrode.

A

`10^(-6)M`

B

`10^(-4)M`

C

`10^(-5)M`

D

`10^(-2)M`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • REDOX REACTION & ELECTROCHEMISTRY

    BRILLIANT PUBLICATION|Exercise QUESTION (ELECTROCHEMISTRY) (LEVEL -II) (ASSERTION-REASON)|3 Videos

  • REDOX REACTION & ELECTROCHEMISTRY

    BRILLIANT PUBLICATION|Exercise QUESTION (ELECTROCHEMISTRY) (LEVEL -I) (HOMEWORK)|20 Videos

  • POLYMERS, BIOMOLECULES AND CHEMISTRY IN EVERYDAY LIFE

    BRILLIANT PUBLICATION|Exercise LEVEL -III (Comprehension Type) |12 Videos

  • SOLID STATE

    BRILLIANT PUBLICATION|Exercise LEVEL-3 (Linked Comprehension Type)|10 Videos

Similar Questions

Explore conceptually related problems

A cell contains two hydrogen electrodes. The negative electrode is in contact with a solution of 10^-6 M hydrogen ions. The emf of the cell is 0.118V at 25^@C . Calculate the concentration of hydrogen ions at the positive electrode.

The e.m.f a cell is 0.265V at 25^(@)C and 0.2594V at 35^(@)C . Hence

What is the potential of a cell containing two hydrogen electrodes, the negative one in contact with 10^-8 molar H^+ and the positive one in contact with 0.025 molar H^+ ?

A galvanic cell is composed of a standard Zn electrode and a chromium electrode immersed in a solution containing Cr^(3+) At what concentration of Cr^(3+) will the emf o the cell be zero?

The standard reduction potential of Cu^(2+)|Cu and Ag^+|Ag electrodes are 0.337 and 0.799 volt respectively. Construct a galvanic cell using these electrodes so that its standard emf is positive. For what concentration of Ag^(+) will the emf of the cell at 25^@ C be zero if the concentration of Cu^(2+) is 0.01M?

The standard electrode potential of Cu,Cu^(2+) is -0.34 volt. At what concentration of Cu^(2+) ions will this electrode potential be zero?

The emf of a cell consisting of a copper and a lead electrode immersed in 1M solution of salts of these metals is 0.47V. Will the emf change if 0.001 solutions are taken?

Calculate the electrode potential of copper electrode in a 0.1 M copper sulphate solution at 25^(@) C. (E^(@)(Cu^(2+)|Cu) = 0.34V) .

Calculate the single electrode potential at 298 K of the Cu ^2 + / Cu electrode in which the concentration of ions is 2.0M

Pure water is saturated with pure solid AgCl. A silver electrode is placed in the solution and the potential is measured against normal calomel electrode at 25^(@)C . This experiment is then repeated with a saturated solution of AgI. If the difference in potential in the two cases is 0.177V, what is the ratio of solubilities of AgCl and AgI at the temperature of experiment ?

BRILLIANT PUBLICATION-REDOX REACTION & ELECTROCHEMISTRY-QUESTION (ELECTROCHEMISTRY) (LEVEL -II)
  1. Given the standard electrod potentials E(Cu^(2+)//Cu)^(@)=0.34v and E(...

    Text Solution

    |

  2. When a Galvanic cell produce current by a spontaneous reaction

    Text Solution

    |

  3. A cell contains two copper electrodes. The negative electrode is in co...

    Text Solution

    |

  4. The emf of the cell Pt, underset(1atm)(H(2(g)))|underset(.01M)(HA)||un...

    Text Solution

    |

  5. For the cell Zn|Zn^(2+)(0.01M)||M((0.001M))^(2+)|M,E("cell")=0.29V. Wh...

    Text Solution

    |

  6. Pt,H(2) (1bar)|HCl(aq)|AgCl(s)|Ag has cell potential 0.92V at 25^(@)C ...

    Text Solution

    |

  7. The equilibrium constant of the reaction 2Fe^(3+)+2I^(-)to2Fe^(2+)+I(2...

    Text Solution

    |

  8. Which of the following is/are true a.Specific conductance denotes co...

    Text Solution

    |

  9. Molar conductivity of a 0.01 M solution of a weak monobasic acids HA i...

    Text Solution

    |

  10. 0.025 M aq. Solution of methanoic acid has molar conductivity 46 S. cm...

    Text Solution

    |

  11. From the following molar conductivities at infinite dilution lamda(m...

    Text Solution

    |

  12. Ionisation constant of acetic acid is 2xx10^(-6). Molar conductivity o...

    Text Solution

    |

  13. 0.04M solution of a weak dibasic acid is 4.23xx10^(-4)S.cm^(-1) The de...

    Text Solution

    |

  14. At 298 K, the conductivity of a saturated solutioni of Agcl in water i...

    Text Solution

    |

  15. One faraday current is passed through molten Na(2)O,MgO and Al(2)O(3)....

    Text Solution

    |

  16. Consider the electrochemical cell between Ag(s) and Cl(2)(g) electrode...

    Text Solution

    |

  17. How many cc of oxygen is released by a current of 2A flowing for 3 min...

    Text Solution

    |

  18. A 250 mL sample of 0.20MCr^(3+) is electrolysed with a current of 96.5...

    Text Solution

    |

  19. 0.02F current is drawn from a lead storage battery. Change in the mass...

    Text Solution

    |

  20. A fuel cell involves combustion of methane at 1atm and 298 K CH(4(g)...

    Text Solution

    |