Home
Class 12
CHEMISTRY
Calculate the standard cell potential of...

Calculate the standard cell potential of galvanic cell in which the following reaction takes place
`2Cr_((s))+3Cd_((aq))^(+2)rarr2Cr_((aq))^(+3)+3Cd_((s))`
Given `E_(Cr^(+3)//Cr)=-0.74(V)E_(Cd^(+2)//Cd)^(o)=-0.04(V)`

A

`0.70 V`

B

`1.14 V`

C

`0.34 V`

D

`-0.34 V`

Text Solution

Verified by Experts

The correct Answer is:
A
`E_"cell"^@=E_"cathode"^@-E_"anode"^@`
`E_"cell"^@=E_(Cd^(2+)//Cd)^@-E_(Cr^(3+)//Cr)^@`
=-0.04-(-0.74)=+0.70 V
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    NCERT FINGERTIPS|Exercise Nernst Equation|17 Videos

  • ELECTROCHEMISTRY

    NCERT FINGERTIPS|Exercise Conductance Of Electrolytic Solutions|23 Videos

  • ELECTROCHEMISTRY

    NCERT FINGERTIPS|Exercise MCQs|5 Videos

  • COORDINATION COMPOUNDS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Calculate the standard cell potential of galvanic cell in which the following reaction takes place 2Cr_(s)+3Cd_(aq)^(+2)rarr2cr_(aq)^(+3)+3Cd_(s) Given E_(Cr^(+3)//Cr)=-0.74(V)E^(@)_(Cd^(+2)//Cd)=-0.04(V)

Calculate the standard cell potentials of the galvanic cells in which the following reactions take place. (a) " " 2Cr(s)+3Cd^(2+) to 2Cd^(3+)(aq)+3Cd(s) Given E_(Cr^(3+)//Cr)^(@)=-0.74" V" , E_(Cd^(2+)//Cd)^(@)=-0.40" V" (b) " " Fe^(2+)(aq)+Ag^(+)(aq) to Fe^(3+)(aq)+Ag(s) Gievn E_(Ag^(+)//Ag)^(@)=0.80" V" ,E_(Fe^(3+)//Fe^(2+))^(@)=0.77 " V" Also calculate DeltaG^(@) and equilibrium constant for the reaction.

Calculate the standard cell potential of the galvanic cell in which the following reaction takes place: 2Cr(s)+3Cd^(2+)(aq)to2Cr^(3+)(aq)+3Cd(s) Also calcuate the triangle_(r)G^(ɵ) value of the reaction (given E_(cr^(3+)//Cr)^(ɵ)=-0.74V,E_(Cd^(3+)//Cd)^(ɵ)=-0.40V and F=96500Cmol^(-1)

Calculate the standard cell potentials of galvanic cell in whiCHM the following reactions take place : a. Cr(s) +3Cd^(2+)(aq) rarr 2Cr^(3+)(aq)+3Cd b. Fe^(2+)(aq)+Ag^(o+)(aq)rarr Fe^(3+)(aq)+Ag(s) Calculate the Delta_(r)G^(c-) and equilibrium constant of the reactions .

NCERT FINGERTIPS-ELECTROCHEMISTRY-Galvanic Cell
  1. A galvanic cell has electrical potential of 1.1 V . If an opposing pot...

    Text Solution

    |

  2. Following reactions are taking place in a Galvanic cell , Zn to Zn^(2+...

    Text Solution

    |

  3. Which of the following is the correct cell representation for the give...

    Text Solution

    |

  4. The cell reaction of the galvanic cell : Cu((s))|Cu((aq))^(2+) ||Hg((a...

    Text Solution

    |

  5. Which of the following reaction is possible at anode ?

    Text Solution

    |

  6. In the cell Zn|Zn^(2+)||Cu^(2+)|Cu, the negaitve terminal is

    Text Solution

    |

  7. For the galvanic cell, Cu|Cu^(2+)"||"Ag^(+)|Ag. Which of the following...

    Text Solution

    |

  8. Which of the following is the cell reaction that occurs when the foll...

    Text Solution

    |

  9. Calculate the standard cell potential of galvanic cell in which the fo...

    Text Solution

    |

  10. The standard reduction potential for the half-cell reaction,Cl2 + 2e^...

    Text Solution

    |

  11. In a cell reaction, Cu((s))+ 2Ag((aq))^(+) to Cu((aq))^(2+) + 2Ag((s))...

    Text Solution

    |

  12. A standard hydrogen electrode has zero electrode potential because :

    Text Solution

    |

  13. Which of the following is the correct order in which metals displace e...

    Text Solution

    |

  14. Given below are the standard electrode potentials of few half-cells. T...

    Text Solution

    |

  15. Based on the data given below, the correct order of reducing power is:...

    Text Solution

    |

  16. Zn gives H(2) gas with H(2)SO(4) and HCl but not with HNO(3) because

    Text Solution

    |

  17. Fluorine is the best oxidising agent because it has

    Text Solution

    |

  18. Which of the following is not an application of electrochemical series...

    Text Solution

    |

  19. E^@ values of three metals are listed below. {:(Zn((aq))^(2+) + 2e^(...

    Text Solution

    |