Home
Class 12
CHEMISTRY
1.5 g of a non-volatile, non-electrolyte...

1.5 g of a non-volatile, non-electrolyte is dissolved in 50 g benzene (`K_b = 2.5 kg mol^(-1)`). The elevation of the boiling point of the solution is 0.75 K. The molecular weight of the solute in g `mol^(-1)` is :

A

200

B

50

C

75

D

100

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST PAPER - 4

    MODERN PUBLICATION|Exercise MCQs|59 Videos

  • MOCK TEST PAPER 5

    MODERN PUBLICATION|Exercise QUESTION|57 Videos

Similar Questions

Explore conceptually related problems

The boiling point of benzene is 353.23 K . When 1.80 g of a non-volatile solute was dissolved in 90 g benzene, the boiling point is raised to 354.11 K . Calculate the molar mass of the solute. ( K_(b) for benzene is 2.53 K kg mol^(-1) )

a) 24 g of a non-volatile, non-electrolyte solute is added to 600 g of water. The boiling point of the resulting solution is 373.35K. Calculate the molar mass of the solute ("Given boiling point of pure water = 373 K and Kb for water=0.52 K kg mol"^(-1)) .

0.90g of a non-electrolyte was dissolved in 90 g of benzene. This raised the boiling point of benzene by 0.25^(@)C . If the molecular mass of the non-electrolyte is 100.0 g mol^(-1) , calculate the molar elevation constant for benzene.

The boiling point of benzene is 353.23 K when 1.80 g of a non-volatile, non-ionising solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of solute. " " [Given K_(b) for benzene = 2.53 K kg mol^(-1) ]

If the elevation in boiling point of a solution of non-volatile, non-electrolytic and non-associating solute in a solvent ( K_(b)=x "K kg mol"^(-1) ) is y K, then the depression in freezing point of the same concentration would be ( K_(f) of the solvent = z "K kg mol"^(-1) )

(a) The boiling point of benzene is 353.23K. When 1.80g of a non-volatile,non-ionisable solute was dissolved in 90g benzene, the boiling point raised to 354.11K. Calculate molarass of the solute.[Kb for benzene =2.53K kg mol-1]. (b)Define :(i) molality of a solution. (ii) Isotonic solutions.

What is the boiling point of an aqueous solution containing 0.6g of urea in 100g of water? Kb for water is 0.52 K kg mol^(-1) .

The vapour pressure of pure benzene at a certain temperature is 640 mm of Hg. A non-volatile non-electrolyte solid weighing 2.175 g is added to 39 g of benzene. The vapour pressure of the solution is 600 mm of Hg. What is molecular weight of solid substance?

The vapour pressure of pure benzene at a certain tempreature is 0.850 bar. A non-volatile. non-electrolyte solid weighing 0.5g, when added to 39.0g of benzene (molar mass of benzene 78g mol^-1 ) vapour pressure of the solution then is 0.845 bar. What is the molar mass of the solid substance?

MODERN PUBLICATION-MOCK TEST PAPER -2-MCQs
  1. A hydrocarbon C6H12 on oxonolysis gives only one product which does no...

    Text Solution

    |

  2. The empty space in the body centred cubic lattice is :

    Text Solution

    |

  3. 1.5 g of a non-volatile, non-electrolyte is dissolved in 50 g benzene ...

    Text Solution

    |

  4. Compound 'A' (molecular formula C3H8O)is treated with acidified potass...

    Text Solution

    |

  5. Which of the following has highest freezing point ?

    Text Solution

    |

  6. In the system, A(g) + 2B(g) hArr C(g) starting from 0.276M of A ...

    Text Solution

    |

  7. A conductivity cell has been callibrated with a 0.01 M 1 : 1 electropy...

    Text Solution

    |

  8. For first order reaction, rate constant :

    Text Solution

    |

  9. The pair of compounds in which both the metals are in the highest poss...

    Text Solution

    |

  10. Which of the following statement is incorrect ?

    Text Solution

    |

  11. Which of the following is a positively charged sol?

    Text Solution

    |

  12. Which one of the following is an oxide ore ?

    Text Solution

    |

  13. The vapour pressure of two liquids A and B in their pure states are i...

    Text Solution

    |

  14. A first order reaction takes 69.3 min for 50% completion. The time req...

    Text Solution

    |

  15. The hydrolysis of NCl3 by water produces :

    Text Solution

    |

  16. Which one of the following shows highest magnetic moment?

    Text Solution

    |

  17. The magnetic moment of the complex : K [Cr(H2O)2(C2O4)2].3H2O is :

    Text Solution

    |

  18. The major products X and Y in the reaction :

    Text Solution

    |

  19. IUPAC name of the complex K3[Fe(CN)6] is :

    Text Solution

    |

  20. How many chiral compounds are possible on monochlorination of 2-methyl...

    Text Solution

    |