Home
Class 12
CHEMISTRY
The boiling point of a solution of 0.11g...

The boiling point of a solution of `0.11g` of a substance is 15g of ether was found to be `0.1^(@)C` higher than that of pure ether. The molecular weight of the substance will be `(K_(b) = 2.16)`

A

148

B

158

C

168

D

178

Text Solution

Verified by Experts

The correct Answer is:
B
`M = (K_b xx w xx 1000)/(DeltaT_b xx W) = (2.16 xx 0.11 xx 1000)/(0.1xx15) = 158.4`
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    DISHA PUBLICATION|Exercise EXERCISE-2 : CONCEPT APPLICATOR|30 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    DISHA PUBLICATION|Exercise Exercise|114 Videos

Similar Questions

Explore conceptually related problems

The boiling point of a solution of 0.11 of a substance in 15g of ether was found to be 0.1^(@)C higher than that of pure ether. The molecular weight of the substance will be (K_(b)=2.16) :

The boiling point of a solution of 0.0150g of a substance in 15.84g of ether was found to be 100^(@)C higher than that of pure ether.What is the molecular weight of the substance [Molecular elevation constant of ether per 100

(a) A solution containing 0.5g of naphithalene in 50g C Cl_(4) yield a boiling point elevation of 0.4K , while a solution of 0.6g of an unknown solute in the same mass of the solvent gives a boiling point elevation of 0.65K . Find the molar mass of the unknown solute. (b) The boiling point of a solution of 0.1g of a substance in 16g of ether was found to be 0.100^(@)C higher that of pure ether. What is the molecular mass of the substance. K_(b) (ether) =2.16K kg "mol"^(-1)

0.15g of a substance dissolved in 15g of a solvent boiled at a temp. higher by 0.216^(@)C than that of the pure solvent. Find out the molecular weight of the substance (K_(b) for solvent is 2.16^(@)C )

If solution containing 0.15 g of solute dissolved in 15 g of solvent boils at a temperature higher by 0.216^(@)C than that of pure solvent, the molecular mass of the substance is (K_(b)=2.16^(@)C)

The solution of 2.5 g of a non-volatile substance in 100 g of benzene boiled at a temperature 0.42^(@)C higher than the b.p. of pure benzene. Calculate mol. Wt. of the substance. ( K_(b) of benzene is 2.67 K kg "mole"^(-1) )

DISHA PUBLICATION-SOLUTIONS -Exercise
  1. A solution containing 4.0 g of PVcC in 2 liter of dioxane (industrial ...

    Text Solution

    |

  2. If the elevation in boiling point of a solution of 10 g of solute (mol...

    Text Solution

    |

  3. The boiling point of a solution of 0.11g of a substance is 15g of ethe...

    Text Solution

    |

  4. Which observation (s) reflect(s) colligative properties ? (i) A 0.5...

    Text Solution

    |

  5. An aqueous solution freezes at -0.186^(@)C (K(f)=1.86^(@) ,K(b)=0.51...

    Text Solution

    |

  6. At temperature 327^(@)C and concentration C, the osmotic pressure of ...

    Text Solution

    |

  7. The relationship between osmotic pressure at 273 K when 10 g glucose (...

    Text Solution

    |

  8. Consider the following statements I : Osmosis takes place with incr...

    Text Solution

    |

  9. Which of the following represents correcty the changes in thermodynami...

    Text Solution

    |

  10. 1.00 g of a non-electrolyte solute (molar mass 250g mol^(–1)) was diss...

    Text Solution

    |

  11. In a 0.2 molal aqueous solution of a weak acid HX the degree of ioniza...

    Text Solution

    |

  12. The elevation in boiling point of a solution of 13.44g of CuCl(2)(mole...

    Text Solution

    |

  13. The temperature at which 10% aqueous solution (w/v) of glucose will ex...

    Text Solution

    |

  14. KBr is 80% ionized in solution. The freezing point of 0.4 molal soluti...

    Text Solution

    |

  15. What is the freezing point of a solution containing 8.1g Br in 100g wa...

    Text Solution

    |

  16. The correct order of osmotic pressure of 0.01M aqueous solution of the...

    Text Solution

    |

  17. A solution of urea boils at 100.18^(@)C at the atmospheric pressure. ...

    Text Solution

    |

  18. Consider the followign statements 1. Isotonic solutions have the sam...

    Text Solution

    |

  19. For an ideal binary liquid solutions with P(A)^(@)gtP(B)^(@), which re...

    Text Solution

    |

  20. Formation of a solution from two componenets can be considered as : (...

    Text Solution

    |