Home
Class 12
CHEMISTRY
The freezing point of a solution prepare...

The freezing point of a solution prepared from `1.25 g` of non-electrolyte and `20 g` of water is `271.9 K`. If the molar depression constant is `1.86 K mol^(-1)`, then molar mass of the solute will be

A

`105.7`

B

`106.7`

C

`115.3`

D

`93.9`

Text Solution

Verified by Experts

The correct Answer is:
A
Molar mass
`=(K_(f)xx1000xxw)/(DeltaT_(f)xxW)=(1.86xx1000xx1.25)/(20xx1.1)`
`=105.68=105.7`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • SOLUTIONS

    A2Z|Exercise Aipt/NEET Questions|23 Videos

  • SOLID STATE

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • SURFACE CHEMISTRY

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

The freezing point of a 0.05 molal solution of a non-electrolyte in water is [K_(f)=1.86K//m]

The freezing point of an aqueous solutions is 272 .93 K . Calculate the molality of the solution if molal depression constant for water is 1.86 Kg mol^(-1)

The freezing point of a 0.05 molal solution of a non-electrolyte in water is: ( K_(f) = 1.86 "molality"^(-1) )

A2Z-SOLUTIONS-AIIMS Questions
  1. What is the molarity of H(2)SO(4) solution that has a density 1.84 g/c...

    Text Solution

    |

  2. Which of the following is a colligative property?

    Text Solution

    |

  3. The vapour pressure of benzene at a certain temperature is 640 mm of H...

    Text Solution

    |

  4. The average osmotic pressure of human blood is 7.8 bar at 37^(@)C. Wha...

    Text Solution

    |

  5. The osmotic pressure in atmosphere of 10%solution of cane sugar at 69^...

    Text Solution

    |

  6. The molal boiling point constant for water is0.513^(@)C kgmol^(-1). Wh...

    Text Solution

    |

  7. The freezing point of a solution prepared from 1.25 g of non-electroly...

    Text Solution

    |

  8. Osmotic pressure of 0.1M solution of NaCland NaSO(4)will be

    Text Solution

    |

  9. At25^(@)Cthe highest osmotic pressure is exhibited by 0.1M solution of

    Text Solution

    |

  10. An azeotropic mixture of HCl and water has

    Text Solution

    |

  11. The boiling point fo water (100^(@)C become 100.52^(@)C, if 3 grams of...

    Text Solution

    |

  12. The depression in freezing point of 0.1Maqueous solution of HCL,CuSO(4...

    Text Solution

    |

  13. When 45gm solution is dissolved in 600gmwater freezing point lower by ...

    Text Solution

    |

  14. Assertion : Molecular mass of bezxoic acid when determined by colligat...

    Text Solution

    |

  15. Assertion : A mixture of cyclohexane and ethanol shows -ve deviation f...

    Text Solution

    |

  16. A pressure cooker reduces cooking time because

    Text Solution

    |

  17. Assertion: C Cl(4)and H(2)Oare immiscible . Reason : C Cl(4) is a po...

    Text Solution

    |

  18. Assertion : isotonic solution do not show the phenomenon of osmosis. ...

    Text Solution

    |

  19. Assertion : Azeotropic mixtures are formed only by non-ideal solution ...

    Text Solution

    |

  20. Assertion : When one solvent mixed with other solvent vapour pressure ...

    Text Solution

    |