Home
Class 12
CHEMISTRY
A solution of CuSO(4) is electrolyzed fo...

A solution of `CuSO_(4)` is electrolyzed for `10 ` min with a current of `1.5A`. What is the mass of `Cu` deposited at the cathode? `[` Atomic mass of `Cu=63g]`

Text Solution

Verified by Experts

`t=600s` charge=current`xx`time`=1.5Axx600s=900C`
According to the reaction:
`Cu^(2+)(aq)+2e^(-)=Cu(s)`
we require 2F or `2xx96487C` to deposit 1 mol or 63 g of Cu.
. For 900C, the mass of Cu deposited.
`=(63g" "mol^(-1)xx900C)//1(2xx96487C" "mol^(-1))=0.2938g`.
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    NCERT ENGLISH|Exercise Exercise|33 Videos
  • COORDINATION COMPOUNDS

    NCERT ENGLISH|Exercise Exercise|41 Videos
  • GENERAL PRINCIPLES AND PROCESSESS OF ISOLATION OF ELEMENTS

    NCERT ENGLISH|Exercise Exercise|31 Videos

Similar Questions

Explore conceptually related problems

A solution of CuSO_(4) is electroysed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at the cathode ? (Molar mass of Cu=63.5 g//mol)

A solution of CuSO_(4) is electroysed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at the cathode ? (Molar mass of Cu=63.5 g//mol)

A solution of Ni(NO_(3))_(2) is electrolyzed between platium electrodes using a current of 5A for 20 mi n . What mass of Ni is deposited at the cathode ?

A solution of Ni(NO_(3))_(2) is electrolyzed between platinum electrodes using a current of 5 amperes for 20 min. What mass of Ni is deposited at the cathode? (Atomic mass of Ni = 58.7) [Report your answer by rounding it upto nearset whole number]

when molten salt was elctrolysed for 5 min with9.65 A current , 0.18g of the metal was deposited. Calculate the Eq. mass of metal.

How many gram of copper metal will be deposited when a solution of copper sulphate (CuSO_4) is electrolysed with a current of 9.65 ampere for 10 minutes? (1F = 96500 C, Atomic mass of Cu = 63.5 u)

Two faraday of electricity is passed through a solution of CuSO_(4) . The mass of copper deposited at the cathode is: (at mass of Cu = 63.5 amu)

Three electrolytic cell A,B , and C contaning solutions of ZnSO_(4), AgNO_(3) , and CuSO_(4) , respectively, are connected in series. A steady current of 1.5A was passed through them until 1.45 g of silver deposited at the cathode of cell B . How long did the current flow ? What mass of copper and zinc were deposited ?

A 35% solution of LiCl was electrolyzed by using a 2.5 A current for 0.8 h. Assuming the current efficiency of 90% , find the mass of LiOH produced at the end of electrolysis. ( Atomic mass of Li=7)

An aqueous solution of CuSO_(4) is electrolyszed using Pt electrodes in one case and Cu electrodes in another case. What are the products of electrolysis in both the cases ?

NCERT ENGLISH-ELECTROCHEMISTRY-Exercise
  1. A solution of CuSO(4) is electrolyzed for 10 min with a current of 1....

    Text Solution

    |

  2. How would you determine the standard reduction potential of the system...

    Text Solution

    |

  3. Can you store CuSO(4) solution in Zn pot ?

    Text Solution

    |

  4. Consult the table of standard electrode potential and suggest three su...

    Text Solution

    |

  5. Calculate the potential of hydrogen electrode in contact with a soluti...

    Text Solution

    |

  6. Calculate the EMF of the cell in which the following reaction takes pl...

    Text Solution

    |

  7. The cell in which the following reaction occurs 2Fe^(3+)(aq)+2I^(-)(...

    Text Solution

    |

  8. Why does the conductivity of a solution decreases with dilution ?

    Text Solution

    |

  9. Suggest a way to determine wedge(m^(@)) value of water.

    Text Solution

    |

  10. The molar conductivity of 0.25 mol L^(-1) methanoic acid is 46.1 S cm^...

    Text Solution

    |

  11. If a current of 0.5A flows through a metallic wire for 2 hours, then h...

    Text Solution

    |

  12. Suggest a list of metals that are extracted electrolytically.

    Text Solution

    |

  13. Consider the reaction : Cr(2)O(7)^(2-)+14H^(o+)+6e^(-) rarr 2Cr^(+3)...

    Text Solution

    |

  14. Write the Chemistry of recharging of lead storage battery highlighting...

    Text Solution

    |

  15. Suggest two materials other than hydrogen that can be used as fuels in...

    Text Solution

    |

  16. Explain how rusting of iron is envisaged as setting up of an electroch...

    Text Solution

    |

  17. Arrange the following metals in the order in which they displace each ...

    Text Solution

    |

  18. Given standard electrode potentials K^(o+)|K=-2.93V, Ag^(o+)|Ag=0.80...

    Text Solution

    |

  19. Depict the galvanic cell in which the reaction : Zn(s)+2Ag^(o+)(aq) ...

    Text Solution

    |

  20. Calculate the standard cell potentials of galvanic cell in which the ...

    Text Solution

    |

  21. Write the Nernst equation and EMF of the following cells at 298K : a...

    Text Solution

    |