Home
Class 11
CHEMISTRY
When 25 " mL of " an aqueous solution of...

When 25 " mL of " an aqueous solution of `H_2O_2` is titrated with an excess of KI solution in dilute `H_2SO_4`, the liberated `I_2` required 20 " mL of " 0.3 N`Na_2S_2O_3` solution for complete reaction.volume strength of `H_2O_2` solution.

Text Solution

Verified by Experts

m" Eq of "`Na_(2)S_(2)O_(3)=20xx0.3=6`
m" Eq of "`I_(2)=6`
m" Eq of "`KI=6`
m" Eq of "`H_(2)O_(2)=6`
Normality of `H_(2)O_(2)=(6)/(25)`
For `H_(2)O_(2)`,
`5.6xx` Normality`=` volume strength
`therefore` Volume strength`=(6)/(25)xx5.6=1.344`
Promotional Banner

Topper's Solved these Questions

  • STOICHIOMETRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Subjective Type|1 Videos

  • STATES OF MATTER

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises (Ture False)|25 Videos

  • THERMODYNAMICS

    CENGAGE CHEMISTRY ENGLISH|Exercise Archives (Subjective)|23 Videos

Similar Questions

Explore conceptually related problems

The volume strength of 0.92 N H_2O_2 solution is

Free iodine is titrated against standard reducing agent usually with sodium thiosulphate , i.e. K_(2)Cr_(2)O_(7) + 6Kl + 7H_(2)SO_(4) to Cr_(2)(SO_(4))_(3) + 4K_(2) SO_(4) + 7H_(2)O+l_(2) 2CuSO_(4) + 4Kl to Cu_(2)l_(2) + 2K_(2)SO_(4) + l_(2) l_(2) + Na_(2)S_(2)O_(3) to 2Nal + Na_(2)S_(4)O_(6) In iodometric titration, starch solution is used as an indicator. Starch solution gives blue or violet colour with free iodine .At the end point , blue or violet colour disappears when iodine is completely changed to iodide. 50 ml of an aqueous solution of H_(2)O_(2) was treated with excess of Kl in dil. H_(2)SO_(4) . The liberated iodine required 20 ml of 0.1 N Na_(2)S_(2)O_(3) for complete reaction. The concentration of H_(2)O_(2) is

The volume strength of 1*5 N H_(2)O_(2) solution is

The volume strength of 1.5 N H_(2)O_(2) solution is

Calculate the volume strength of an N/10H_(2)O_(2) solution.

638.0 g of CuSO_(4) solution is titrated with excess of 0.2 M KI solution. The liberated I_(2) required 400 " mL of " 1.0 M Na_(2)S_(2)O_(3) for complete reaction. The percentage purity of CuSO_(4) in the sample is

Excess of Kl and dil. H_2SO_4 were mixed in 50 mL H_2O_2 . The liberated l_2 required 20 mL 0.1 N Na_2S_2O_3 . Find out the strength of H_2O_2 in g "litre"^(-1) .

0.71 g of a sample of bleaching powder (CaOCl_2) is dissolved in 100 " mL of " water. 50 " mL of " this solution is titrated with KI solution. The I_2 so liberated required 10 mL 0.1 M Na_2S_2O_3 (hypo) solution in acidic medium for complete neutralisation. Calculate the percentage of available Cl_2 from the sample of bleaching power.

To a 25 mL H_(2)O_(2) solution excess of an acidified solution of potassium iodide was added. The iodine liberated required 20 mL of 0.3 N sodium thiosulphate solution Calculate the volume strength of H_(2)O_(2) solution.

10 " mL of " a sample of phenol was diluted with H_2O and made up to 1.0L . 20 " mL of " this solution was treted with 40 mL brominating solution (a mixture of KBrO_3 and KBr) in dil H_2SO_4 . Excess of KI was added, and the liberated I_2 required 15 " mL of " 0.1 M Na_2S_2O_3 for complete reaction. 25 " mL of " the same brominating solution, on similar treatment required, 20 " mL of " 0.1 M Na_2S_2O_3 . Calculate the weight of phenol per litre of the original sample.

CENGAGE CHEMISTRY ENGLISH-STOICHIOMETRY-Archives Subjective
  1. n-Butance (C(4)H(10)) is produced by monobromation of C(2)H(6) followe...

    Text Solution

    |

  2. A mixture of H(2)C(2)O(4) and NaHC(2)O(4) weighing 2.02 g was dissolve...

    Text Solution

    |

  3. A solid mixture(5.000 g) consisting of lead nitrate and sodium nitrate...

    Text Solution

    |

  4. A solution of 0.2 g of a compound containing Cu^(2+) and C(2)O(4)^(2-)...

    Text Solution

    |

  5. 1.0 g of Fe2O3 solid of 55.2% purity is dissolved in acid. The solutio...

    Text Solution

    |

  6. A 2.0 g sample of a mixture containing sodium carbonate, sodium bicarb...

    Text Solution

    |

  7. 1.0 g of AgNO3 is dissolved in 50 " mL of " water It is titrated with ...

    Text Solution

    |

  8. The composition of a sample of Wustite is Fe(0.93)O(1.00). What percen...

    Text Solution

    |

  9. A is a binary compound of a univalent metal. When 1.422 g of A reacts ...

    Text Solution

    |

  10. An ideal gaseous mixture of ethane (C(2)H(6)) and ethene (C(2)H(4)) oc...

    Text Solution

    |

  11. 5.0 cm^(3) of H(2)O(2) liberates 0.508 g of iodine from an acidified K...

    Text Solution

    |

  12. A 20 mL mixture of CO, CH4, and Helium (He) gases is exploded by an el...

    Text Solution

    |

  13. A 4.0 g sample contained Fe2O3,Fe3O4, and inert material. It was treat...

    Text Solution

    |

  14. When 25 " mL of " an aqueous solution of H2O2 is titrated with an exce...

    Text Solution

    |

  15. An aqueous solution containing 0.5 g KIO3 (formula weight =214.0) was ...

    Text Solution

    |

  16. Calculate the volume of 0.5 M H2SO4 required to dissolve 0.5 g of copp...

    Text Solution

    |

  17. A plant virus is found to consist of uniform cylindrical particle of 1...

    Text Solution

    |

  18. H(2) O(2) solution (20 mL) reacts quantitatively with a solution of KM...

    Text Solution

    |

  19. One gram of charcoal adsorbs 400 " mL of " 0.5 M acetic acid to form a...

    Text Solution

    |

  20. Around 20% surface sites have adsorbed N(2). On heating N(2) gas evolv...

    Text Solution

    |