Home
Class 12
CHEMISTRY
A Zn rod weighing 25g was kept in 100 mL...

A `Zn` rod weighing `25g` was kept in `100 mL` of `1M CuSO_(4)` solution. After a certain time the molarity of `Cu^(2+)` in solution was `0.8`. What was molartiyof `SO_(4)^(2-)`? What was the weight of `Zn` rod after cleaning ?
`("At. Weight of "Zn = 65.4.)`

Text Solution

Verified by Experts

The correct Answer is:
`23.692 g`, no charge molarity
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    P BAHADUR|Exercise Exercise (7) COMPREHENSION BASED OBJECTIVE PROBLEMS|3 Videos

  • DILUTE SOLUTION AND COLLIGATIVE PROPERTIES

    P BAHADUR|Exercise Exercise 9 Advanced Numerical|12 Videos

  • MOCK TEST PAPER

    P BAHADUR|Exercise Exercise|92 Videos

Similar Questions

Explore conceptually related problems

A Zn rod weighing 25g was kept in 100 mL of 1M CuSO_4 solution. After a certain time the molarity of Cu^(2+) in solution was 0.8. What was molarity of SO_4^(2–) ? What was the weight of Zn rod after cleaning ? (At. weight of Zn = 65.4)

Zn rod is placed in 100mL of 1M CuSO_(4) solution so that molarity of Cu^(2+) changes to 0.7M. The molarity of SO_(4)^(-) at this stage will be

One litre 1 M CuSO_(4) solution is electrolysed. After passing 2 F of electricity, the molarity of solution will be

A Zn rod weighing 1.0g is taken in 100mL of 1M CuSO_(4) solution . After some time, [Cu^(2+)] in solution =0.9M( atomic weight of Zn=65.5g) . Which of the following statements is // are correct ? a. 0.655g of Zn was lost during the reaction. b. 0.327 g of Zn was lost during the reaction . c. There is no change in the molarity of SO_(4)^(2-) ion. d. There is a change in the molarity of SO_(4)^(2-) ion.

4.9 g of H_(2)SO_(4) is present in 100 mL of the solution. What is the molarity of the solution ? Calculate its normality also.

If 100 mL "of" 1 M H_(2) SO_(4) solution is mixed with 100 mL of 98% (W//W) of H_(2)SO_(4) solution (d = 0.1 g mL^(-1)) , then

A current of 1.40 ampere is passed through 500 mL of 0.180 M solution of zinc sulphate for 200 seconds. What will be the molarity of Zn^(2+) ions after deposition of zinc?

P BAHADUR-ELECTROCHEMISTRY-Exercise (9) ADVANCED NUMERICAL PROBLEMS
  1. Some quantity of electricity being used to liberate iodine (at anode) ...

    Text Solution

    |

  2. A test for complete romovel of Cu^(2+) ions form a solution of Cu((aq....

    Text Solution

    |

  3. A Zn rod weighing 25g was kept in 100 mL of 1M CuSO(4) solution. After...

    Text Solution

    |

  4. Assume that impure copper contains only Fe, Au and Ag as impurities. A...

    Text Solution

    |

  5. 50 mL of 0.1 M CuSO(4) solution is electrolysed using Pt electrodes wi...

    Text Solution

    |

  6. An oxide of metal ("at. wt. "= 112) contain 12.5% O(2) by weight. The ...

    Text Solution

    |

  7. 19g fused SnCl(2) was electrolysed using inert electrodes. 0.119g Sn w...

    Text Solution

    |

  8. A lead storage cell is discharged which causes the H(2)SO(4) electroly...

    Text Solution

    |

  9. Two litre solution of a buffer mixture containing 1.0 M NaH(2)PO(4) an...

    Text Solution

    |

  10. A current of 40 microampere is passed through a solution of AgNO(3) fo...

    Text Solution

    |

  11. Suppose a fully charged battery containes 1.50 litre of 5.0 M H(2)SO(4...

    Text Solution

    |

  12. In an analytical determination of aresenic , a solution containing are...

    Text Solution

    |

  13. Assuming that a constant current is delivered, how many kW-h of electr...

    Text Solution

    |

  14. Find the e.m.f. of the following cell at 18^(@)C taking the degree of ...

    Text Solution

    |

  15. If it is disreed to construct the following voltaic cell to have E(cel...

    Text Solution

    |

  16. The e.m.f. of the obtained by combining Zn and Cu electrodes of Danie...

    Text Solution

    |

  17. Calcualte the potential of an indicator electrode versus the standard ...

    Text Solution

    |

  18. An electrode is prepared by dipping a silver strip into a solution sat...

    Text Solution

    |

  19. Calculate the minimum weight of NaOH required to be added in R.H.S. t...

    Text Solution

    |

  20. Consider the cell Ag|AgBr((s)), Br^(-)||AgCl((s)), Cl^(-)|Ag at 25^(@)...

    Text Solution

    |