Home
Class 11
CHEMISTRY
The mole fraction of water in 20% (wt.//...

The mole fraction of water in `20% (wt.//wt.)` aqueous solution of `H_(2)O_(2)` is:

A

`(77)/(68)`

B

`(68)/(77)`

C

`(20)/(80)`

D

`(80)/(20)`

Text Solution

Verified by Experts

The correct Answer is:
B
Mole fraction of water
`=(80//18)/((80)/(18)+(20)/(34))=(68)/(77)`
Promotional Banner

Topper's Solved these Questions

  • MOLE AND EQUIVALENT CONCEPT

    P BAHADUR|Exercise Exercise(3B)Objective problems|15 Videos

  • MOLE AND EQUIVALENT CONCEPT

    P BAHADUR|Exercise Exercise (4) Objective problems|20 Videos

  • MOLE AND EQUIVALENT CONCEPT

    P BAHADUR|Exercise Exercise (2) prevous year numberical problems|25 Videos

  • IONIC EQUILIBRIUM

    P BAHADUR|Exercise Exercise|85 Videos

  • RADIO ACTIVITY

    P BAHADUR|Exercise Exercies 9|99 Videos

Similar Questions

Explore conceptually related problems

An aqueous solution of H_(2)O_(2)

Mole fraction of a solute in 2.5 molal aqueous solution is

P BAHADUR-MOLE AND EQUIVALENT CONCEPT-Exercise (3A) Objective problems:
  1. Potash alum and chrome alum are examples of:

    Text Solution

    |

  2. Which of the following is not primary standard?

    Text Solution

    |

  3. The mole fraction of water in 20% (wt.//wt.) aqueous solution of H(2)O...

    Text Solution

    |

  4. Which is heaviest?

    Text Solution

    |

  5. Total mass of neutrons in 7 mg of .^(14)C is:

    Text Solution

    |

  6. The number of atoms in 4.25 g NH(3) is approximately:

    Text Solution

    |

  7. The number of atomic weight scale is based on:

    Text Solution

    |

  8. Amount of oxygen in 32.2 g of Na(2)SO(4).10H(2)O is:

    Text Solution

    |

  9. At STP 5.6 "litre" of a gas weigh 60 g. The vapour density of gas is:

    Text Solution

    |

  10. 10 "mole of" kSO(2) and 15 "mole of" O(2) were passed over catalyst to...

    Text Solution

    |

  11. A gaseous alkane was exploded with oxygen. The volume of O(2) for comp...

    Text Solution

    |

  12. Mole fraction of I(2) in C(6) H(6) is 0.2. Calculate molality of I(2) ...

    Text Solution

    |

  13. A solution is 0.5M in MgSO(4), 0.1MACl(3) and 0.2 M in (NH(4))(2)SO(4...

    Text Solution

    |

  14. Equal masses of O(2), H(2) and CH(4) are taken in a container. The res...

    Text Solution

    |

  15. The mole fraction of the solute in one molal aqueous solution is:

    Text Solution

    |

  16. In the solubility of liquid solutions:

    Text Solution

    |

  17. After equal volume of 0.10 M solutions of (NH(4))(2)SO(4) and Ba(OH)(2...

    Text Solution

    |

  18. Chlorophyll, a green colouring matter contains 2.68% Mg. The number of...

    Text Solution

    |

  19. 16g of SO(x) occupies 5.6 litre at STP. Assuming ideal gas nature, the...

    Text Solution

    |

  20. The radius of a water molecule having density 1.0g mL^(-1) is :

    Text Solution

    |