Home
Class 11
CHEMISTRY
A solution containing 7g of a solute (mo...

A solution containing 7g of a solute (molar mass `210 "g mol"^(-1)`) in 350g of acetone raised the boiling point of acetone from `56^(@)C` to `56.3^(@)C`. The value of ebullioscope contant of acetone in `"K kg bol"^(-1)` is :

A

2.66

B

3.15

C

4.12

D

2.86

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaT=K_(b)xx(w_(B)xx1000)/(m_(B)xxw_(A))`
`0.3=K_(b)xx(7xx1000)/(210xx350)`
`K_(b)=(0.3xx210xx350)/(7xx1000)=3.15" K kg mol"^(-1)`]
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS (GENERAL AND COLLIGATIVE PROPERTIES)

    OP TANDON|Exercise Practice Problem|66 Videos

  • SOLUTIONS (GENERAL AND COLLIGATIVE PROPERTIES)

    OP TANDON|Exercise Set-1 (Level-A)|190 Videos

  • SOLUTIONS (GENERAL AND COLLIGATIVE PROPERTIES)

    OP TANDON|Exercise MISC Examples|26 Videos

  • PROBLEMS BASED UPON STRUCTURES AND REACTIONS OF ORGANIC COMPOUNDS

    OP TANDON|Exercise Some Solved Problems|21 Videos

  • STATES OF MATTER (GASES AND LIQUIDS)

    OP TANDON|Exercise Self Assess,ent|28 Videos

Similar Questions

Explore conceptually related problems

A solution containing 0.73 g of camphor ( molar mass 152 g "mol"^(-1) ) in 36.8 g of acetone ( boiling point 56.3^(@)C) boils at 56* 55^(@)C . A solution of 0.564 g of unknown compound in the same weight of acetone boils at 56.46^(@)C . Calculate the molar mass of the unknown compound .

A solution contains 0.524 g of camphor ( molar mass = 152 g/ mol dissolved in 36.8 g of ether (boiling point =34.6^(@) C) . The molal elevation constant per 100 g of ether is 19.4 K kg mol ^(-1) . The boiling point of the solution is _______.

If 1 g of solute (molar mass = 50 g mol^(-1) ) is dissolved in 50 g of solvent and the elevation in boiling point is 1 K. The molar boiling constant of the solvent is

Calculate the boiling point of solution containing 0.456g of camphor (molar mass =152 ) dissolved in 31.4g of acetone (boiling point =56.30^(@)C ), if the molar elevation constant per 100g of acetone is 17.2^(@)C.

OP TANDON-SOLUTIONS (GENERAL AND COLLIGATIVE PROPERTIES)-Illustrations
  1. Calculate the molal depression constant of a solvent which has freezin...

    Text Solution

    |

  2. The elevation in boiling point, when 13.44g of freshly prepared CuCl(2...

    Text Solution

    |

  3. A solution containing 7g of a solute (molar mass 210 "g mol"^(-1)) in ...

    Text Solution

    |

  4. The normal boiling point of toluene is 110.7^(@)C and its boiling poin...

    Text Solution

    |

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

    Text Solution

    |

  6. The amount of urea to be dissolved in 500 cc of water (K(f)=1.86) to p...

    Text Solution

    |

  7. What should be the freezing point of aqueous solution containing 17g o...

    Text Solution

    |

  8. 6g of non-volatile, non-electrolyte x dissolved in 100g of water freez...

    Text Solution

    |

  9. The mass of ascorbic acid (C(6)H(8)O(6)) to be dissolved in 100g of ac...

    Text Solution

    |

  10. Find out the osmotic pressure of 0.25 M aqueous solution of urea at 27...

    Text Solution

    |

  11. Two solutions of glucose have osmotic pressure 1.5 and 2.5 atm,respect...

    Text Solution

    |

  12. 18 g glucose and 6 g urea are dissolved in 1 L aqueous solution at 27^...

    Text Solution

    |

  13. A solution containing 10 g per dm^(3) of urea (mol.wt. = 60 g mol^(-1)...

    Text Solution

    |

  14. The osomotic pressure of a solution at 0^(@)C is 4 atm. What will be i...

    Text Solution

    |

  15. The temperature at which 10% aqeous solution ((W)/(V)) of glucose will...

    Text Solution

    |

  16. 0.002 molar solutiion of NaCl having degree of dissociation of 90% at ...

    Text Solution

    |

  17. A 0.2 molal solution of KCl freezes at -0.68^(@)C. If K(f) for H(2)O i...

    Text Solution

    |

  18. A certain substance A tetramerizes in water to the extent of 80%. A so...

    Text Solution

    |

  19. The Van't Hoff factor of Hg(2)Cl(2) in its aqueous solution will be (H...

    Text Solution

    |

  20. 0.1 M aqueous solution of MgCl(2) at 300 K is 4.92 atm. What will be t...

    Text Solution

    |