Home
Class 12
CHEMISTRY
On electrolysis of an aqueous electrolyt...

On electrolysis of an aqueous electrolyte between copper electrodes, it is observed that cuprous oxide (molecular weight 143) is formed at the anode. What will be the weight of the cuprous oxide formed if a current of 0.965 A is passed for 2000 sec ?

Text Solution

AI Generated Solution

To find the weight of cuprous oxide (Cu2O) formed during the electrolysis, we can follow these steps: ### Step 1: Understand the Reaction At the anode, copper is oxidized to cuprous oxide. The half-reaction can be represented as: \[ 2Cu \rightarrow 2Cu^+ + 2e^- \] This indicates that 2 moles of copper will produce 1 mole of cuprous oxide (Cu2O). ### Step 2: Calculate the Total Charge (Q) ...
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    ICSE|Exercise Follow up Problems|48 Videos
  • ELECTROCHEMISTRY

    ICSE|Exercise EXERCISE (PART-I Objective Questions)|28 Videos
  • DISTINCTION BETWEEN PAIRS OF COMPOUNDS

    ICSE|Exercise QUESTIONS |155 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    ICSE|Exercise EXERCISE (PART-I ( OBJECTIVE QUESTIONS )) (Fill in the blanks)|60 Videos

Similar Questions

Explore conceptually related problems

An electric current is passed through silver nitrate solution using silver electrodes. 15.28 g of silver was found to be deposited on catode. What will be the weight of copper deposited on cathode if same amount of electricity is passed through copper sulphate solution using copper electrodes?

A solution of copper (II) sulphate is electrolysed between copper electrodes by a current of 10.0 amperes passing for one hour. What changes occur at the electrodes and in the solution?

During electrolysis of acidified water, O_(2) gas is formed at the anode . To produce O_(2) gas at the anode at the rate of 0.224mL per second at STP , current passed is

During the electrolysis of acidified water, O_(2) gas is formed at the anode. To produce O_(2) gas at the anode at the rate of 0.224 ml per second at STP , the current passed is

1 g mixture of cuprous oxide and cupric oxide was quantitatively reduced to 0.839 g of metallic copper. What was the weight of cupric oxide in the original sample ? (Cu = 63. 5, O = 16) .

Beryllium occurs naturally in the form of beryl. The metal is produced from its ore by electrolysis after the ore has been converted to the oxide and then to the chloride.How many grams of Be(s) is deposited form a BeCl_2 solution by a current of 5.0 A that flows for 1.0 h? (Atomic weight:Be=9)

Cu forms two oxides cuprous and cupric oxides, which law can be proved by the weights of Cu and O?

Assume that during electrolysis of AgNO_(3) only H_(2)O is electrolyesd and O_(2) is formed at the anode as : 2H_(2)Orarr 4H^(+)+O_(2)+4e^(-) O_(2) formed at NTP due to passage of 2 amperes of current for 965 sec is :

An oxide of metal (at . Wt = 112) contains 12.5% of oxygen by weight. What is the valency of metal? What mass of the metal will be liberated when the oxide is converted to chloride with HCl and electrolysed using a current of 9.65 amp for a period of 30 min?

Find out the oxidation state of tin in its salt, when 11.0 g of deposited when a current of 1.0 A is passed for 5 hours through molten salt. (Given atomic weight of tin = 119)

ICSE-ELECTROCHEMISTRY-ISC EXAMINATION QUESTIONS (PART-II Numerical Problems)
  1. On electrolysis of an aqueous electrolyte between copper electrodes, i...

    Text Solution

    |

  2. A cell is constructed by dipping a zinc rod in 0.1 M zinc nitrate solu...

    Text Solution

    |

  3. For the cell : Zn"|"Zn^(2+) (a=1)"||"Cu^(2+) (a=1)"|"Cu Given that ...

    Text Solution

    |

  4. Calculate the equivalent conductivity of 1M H(2)SO(4), whose specific...

    Text Solution

    |

  5. A current of 10 A is passed for 80 min and 27 seconds through a cell ...

    Text Solution

    |

  6. Calculate E("cell") at 25^(@)C for the reaction : Zn+Cu^(2+) (0.2...

    Text Solution

    |

  7. A 0.05 M NaOH solution offered a resistance of 31.6 ohms in a conduct...

    Text Solution

    |

  8. For the following cell, calculate the emf: Al//Al^(3+) (0.01 M)"||"...

    Text Solution

    |

  9. A solution of 0.1 N KCl offers a resistance of 245 ohms. Calculate th...

    Text Solution

    |

  10. How many electrons will flow when a current of 5 amperes is passed thr...

    Text Solution

    |

  11. Consider the reaction 2Ag^(+) +Cd to 2Ag to 2Ag +Cd^(2+). The stan...

    Text Solution

    |

  12. Calculate the maximum work that can be obtained from the given electr...

    Text Solution

    |

  13. Calculate the value of E("cell") at 298 K for the following cell: ...

    Text Solution

    |

  14. 0*05 " M " NaOH solution offered a resistance of 31*6 ohm in a conduct...

    Text Solution

    |

  15. 0*3605 g of a metal is deposited on the electrode by passing 1*2 amper...

    Text Solution

    |

  16. How many hours does it take to reduce 3 moles of Fe^(3+) to Fe^(2+) wi...

    Text Solution

    |

  17. Calculate the emf of the following cell reaction at 298 K: Mg(s) +C...

    Text Solution

    |

  18. The specific conductance of a 0.01 M solution of acetic acid at 298 K...

    Text Solution

    |

  19. Calculate the number of coulombs required to deposit 5.4g of Al when ...

    Text Solution

    |

  20. A 0.05 M NH OH solution offers the resistance of 50 ohms to a conduct...

    Text Solution

    |