Home
Class 11
CHEMISTRY
The boiling point of a solution of 0.11g...

The boiling point of a solution of 0.11g of a substance in 15 g of ether was found to be `0.1^0C` higher than that of pure ether. The molecular weight of the substance will be: `[K_b=2.16 K kg mol^(−1) ]`

A

148

B

158

C

168

D

178

Text Solution

Verified by Experts

`K_(SP)=3xx10^-28`
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL CHEMISTRY

    PATHFINDER|Exercise QUESTION BANK|157 Videos

  • GOC-II & III

    PATHFINDER|Exercise QUESTION BANK|144 Videos

Similar Questions

Explore conceptually related problems

A solution containing 2.5 g of a non-volatile solute in 100 gm of benzene boiled at a temperature 0.42K higher than at the pure solvent boiled. What is the molecular weight of the solute? The molal elevation constant of benzene is "2.67 K kg mol"^(-1) .

The elevation in boiling point of a solution of 13.44 g of CuCl_2 in 1 Kg of water using the following information will be: (Molecular weight of CuCl_2=134.4 and K_b=0.52 K molal^-1)

10g of an organic substance when dissolved in two litres of water gave an osmotic pressure of 0.59 atm, at 7^(@)C . Calculate the molecular weight of the substance.

The boiling point of a solution containing 1.5 g of dichlorobenzene in 100 g of benzene was higher by 0.268^@C . Calculate the molar mass of dichlorobenzene. K_b forbenzene = 2.42 K kg mol^-1

A solution of 2.44xx10^-3 kg of a nonelectrolyte solute dissolved in 0.075 kg of water boiled at 100.413^@C . Calculate the molecular mass of the solute. K_b for water = 0.52 K kg mol^-1

For a dilute solution containing 2.5 g of a non- volatile non-electrolyte solute in 100 g of water, the elevation in boiling point at 1 atm pressure is 2^@C Assuming concentration of solute is much lower than the concentration of solvent, the vapour pressure (mm of Hg) of the solution is (take k_b = 0.76 K kg mol^(-1)) .

A solution containing 0.5 g of naphthalene in 50 g C Cl_4 yield a boiling point elevation of 0.4 k, while a solution of 0.6 g of an unknown solute in the same mass of the solvent gives a boiling point elevation of 0.65 k. Find the molar mass of the unknown solute.

At 100^@C the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If K_b = 0. 52, the boiling point of this solution will be.

At 100^(@)C the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If k_(b) = 0.5 , the boiling point of this solution will be -

The elevation of boiling poin is 0.70K when 12.5gm of a non electrolyte gets dissolved in 175 gm of water. Cacluate mole mass of the substance K_b =52K Kg mol^(-1)

PATHFINDER-EQUILIBRIUM-QUESTION BANK
  1. In a 0.250 M solution of Na3PO4 , the concentration of the sodium ions...

    Text Solution

    |

  2. Determine the simultaneous solutbiltiy of AgCN (K(sp)=2.2xx10^-16) and...

    Text Solution

    |

  3. The boiling point of a solution of 0.11g of a substance in 15 g of eth...

    Text Solution

    |

  4. The ratio of volumes of CH3COOH 0.1 (N) to CH3COONa 0.1 (N) required t...

    Text Solution

    |

  5. Which one of the following pairs of solution is not an acidic buffer?

    Text Solution

    |

  6. What is the pH of the resulting solution when equal volumes of 0.1 M N...

    Text Solution

    |

  7. Among the following oxoacids, the correct decreasing order of acid str...

    Text Solution

    |

  8. The pH of 10^-4 M KOH solution will be

    Text Solution

    |

  9. Which of the following salts will give highest pH in water?

    Text Solution

    |

  10. The ionization constant of nitrous acid is 4.5×10^(−4) . Calculate the...

    Text Solution

    |

  11. Acidity of diprotic acids in aqueous solutions increases in the order

    Text Solution

    |

  12. A fertile soil is likely to have a pH of:

    Text Solution

    |

  13. The product of molar concentrations of hydrogen ions and hydroxide ion...

    Text Solution

    |

  14. What is the pH of millimolar solution of ammonium hydroxide which is 2...

    Text Solution

    |

  15. By adding 20 ml 0.1 M HCl to 20 mL 0.001 N KOH, the pH of the obtained...

    Text Solution

    |

  16. The strongest Bronsted base in the following anion is

    Text Solution

    |

  17. Then pKa of a certain weak acid is 4.0. What should be the [salt] rati...

    Text Solution

    |

  18. The solubility product of a binary weak electrolyte is 4xx10^-10 at 29...

    Text Solution

    |

  19. The solubility of CaF2 is s mol/L. Then solubility product is

    Text Solution

    |

  20. What kind of a molecule AlCl3 is ?

    Text Solution

    |