Home
Class 12
CHEMISTRY
Properties such as boiling point, freezi...

Properties such as boiling point, freezing point, and vapour pressure of a pure solvent change when solute molecules are added to get homogenous solution. These are called colligative properties.
Anwer the following questions:
i.0.1 M ethanol
ii.`0.1 m Ba_(3)(PO_(4))_(3)`
iii.`0.1 m Na_(2)SO_(4)`
Increasing order of freezing points

A

`(ii) lt (iii) lt (i)`

B

`(iii) lt (ii) lt (i)`

C

`(i) lt (ii) lt (iii)`

D

`(ii) lt (i) lt (iii)`

Text Solution

Verified by Experts

The correct Answer is:
A
Freezing point is higher if `DeltaT_(f)` is lower (depends on `m_(effective)`
`:. 0.1 m Ba_(3)(PO_(4))_(3) lt 0.1 m Na_(2)SO_(4) lt 0.1 m ethanol`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Exercises (Multiple Correct)|25 Videos

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Exercises (Single Correct)|99 Videos

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Solved Examples|40 Videos

  • SOLID STATE

    CENGAGE CHEMISTRY|Exercise Ex 1.2 (Objective)|9 Videos

  • SURFACE CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Archives Subjective|2 Videos

Similar Questions

Explore conceptually related problems

Properties such as boiling point, freezing point, and vapour pressure of a pure solvent change when solute molecules are added to get homogenous solution. These are called colligative properties. Anwer the following questions: i. 0.001 m NaCl ii.0.001 m urea iii. 0.001 m MgCl_(2) iv. 0.001 m CH_(3)COOH Increasing order of boiling points

Properties such as boiling point, freezing point, and vapour pressure of a pure solvent change when solute molecules are added to get homogenous solution. These are called colligative properties. Anwer the following questions: i.0.1 M glucose ii.1% urea solution iii.0.1 M common salt Increasing order of osmotic pressure

Properties such as boiling point, freezing point, and vapour pressure of a pure solvent change when solute molecules are added to get homogenous solution. These are called colligative properties. Anwer the following questions: i. NaNO_(3) ii. BaCl_(2) iii. K_(3)[Fe(CN)_(6)] iv. C_(6)H_(12)O_(6) Increasing order of Van't Hoff factor

Properties such as boiling point, freezing point and vapour pressure of a pure solvent change when solute molecules are added to get homogenous solution. These are called colligative properties. Application of colligative properties are very useful in day-to-day life. One of its example is the use of ethylene glycol and water mixture as anti-freezing liquid in the radiator of automobiles. A solution M is prepared by mixing ethanol and water. The mole fraction of ethanol in the mixture is 0.9 . Given : Freezing point depression constant of water (K_(f)^("water")) = 1.86 K "mol"^(-1) Freezing point depression constant of ethanol (K_(f)^("ethonal")) = 2.0 K kg "mol"^(-1) Boiling point elevation constant of water (K_(b)^("water")) = 0.52 K kg "mol"^(-1) Boiling point elevation constant of ethanol (K_(b)^("ethonal")) = 1.2 K kg mol^(-1) Standard freezing point of water = 273 K Standard freezing point of ethonal = 155.7 K Standard boiling point of water = 373 K Standard boiling point of ethanol = 351.5 K Vapour pressure of pure water = 32.8 mm Hg Vapour pressure of pure ethonal = 40 mm Hg Molecular weight of water = 18 g "mol"^(-1) Molecular weight of ethonal = 45 g"mol"^(-1) In answering the following questions, consider the solution to be ideal ideal solutions and solutes to be non-volatile and non-dissociative. Water is added to the solution M such lthat the molecules fraction of water in t he solution becomes 0.9 . The boiling point of this solution is :

Properties such as boiling point, freezing point and vapour pressure of a pure solvent change when solute molecules are added to get homogeneous solution. These are called colligative properties. Applications of colligative properties are very useful in day-to-day life. One of its examples is the use of ethylene glycol and water mixture as anti-freezing liquid in the radiator of automobiles. A solution M is prepared by mixing ethanol and water. Thus moel fraction of ethanol in the mixture is 0.9 . Given: Freezing point depression constant of water (K_(f)^("water")) = 1.86 K kg mol^(-1) Freezing point depression constant of ethanol (K_(f)^("ethanol")) = 2.0 K kg mol^(-1) Boiling point elevation constant of water (K_(b)^("water")) = 0.52 K kg mol^(-1) Boiling point elevation constant of ethanol (K_(b)^("ethanol")) = 1.2 K kg mol^(-1) Standard freezing point of water = 273 K Standard freezing point of ethanol = 155.7K Standard boiling point of water = 373 K Standard boiling point of ethanol = 351.5 K vapour pressure of pure water = 32.8 mm Hg Vapour pressure of pure ethanol = 40 mm Hg Molecualr weight of water = 18 g mol^(-1) Molecular weight of ethanol = 46 g mol^(-1) In asweering the following questions, consider the solutions to be ideal dilute solutions and solutes to be non-volatile and non-dissociative. The freezing point of the solution M is :

Properties such as boiling point, freezing point and vapour pressure of a pure solvent change when solute molecules are added to get homogeneous solution. These are called colligative properties. Applications of colligative properties are very useful in day-to-day life. One of its examples is the use of ethylene glycol and water mixture as anti-freezing liquid in the radiator of automobiles. A solution M is prepared by mixing ethanol and water. Thus moel fraction of ethanol in the mixture is 0.9 . Given: Freezing point depression constant of water (K_(f)^("water")) = 1.86 K kg mol^(-1) Freezing point depression constant of ethanol (K_(f)^("ethanol")) = 2.0 K kg mol^(-1) Boiling point elevation constant of water (K_(b)^("water")) = 0.52 K kg mol^(-1) Boiling point elevation constant of ethanol (K_(b)^("ethanol")) = 1.2 K kg mol^(-1) Standard freezing point of water = 273 K Standard freezing point of ethanol = 155.7K Standard boiling point of water = 373 K Standard boiling point of ethanol = 351.5 K vapour pressure of pure water = 32.8 mm Hg Vapour pressure of pure ethanol = 40 mm Hg Molecualr weight of water = 18 g mol^(-1) Molecular weight of ethanol = 46 g mol^(-1) In asweering the following questions, consider the solutions to be ideal dilute solutions and solutes to be non-volatile and non-dissociative. The vapour pressure of the solution M is:

CENGAGE CHEMISTRY-SOLUTIONS-Exercises (Linked Comprehension)
  1. A solution M is prepared by mixing ethanol and water. The mole fractio...

    Text Solution

    |

  2. A solution M is prepared by mixing ethanol and water. The mole fractio...

    Text Solution

    |

  3. A solution M is prepared by mixing ethanol and water. The mole fractio...

    Text Solution

    |

  4. Properties such as boiling point, freezing point, and vapour pressure ...

    Text Solution

    |

  5. Properties such as boiling point, freezing point, and vapour pressure ...

    Text Solution

    |

  6. Properties such as boiling point, freezing point, and vapour pressure ...

    Text Solution

    |

  7. Properties such as boiling point, freezing point, and vapour pressure ...

    Text Solution

    |

  8. A certain vessel X has water and nitrogen gas at a total pressure of 2...

    Text Solution

    |

  9. A certain vessel X has water and nitrogen gas at a total pressure of 2...

    Text Solution

    |

  10. A certain vessel X has water and nitrogen gas at a total pressure of 2...

    Text Solution

    |

  11. A certain vessel X has water and nitrogen gas at a total pressure of 2...

    Text Solution

    |

  12. A system of greater disorder of molecules is more probable. The disord...

    Text Solution

    |

  13. A system of greater disorder of molecules is more probable. The disord...

    Text Solution

    |

  14. A system of greater disorder of molecules is more probable. The disord...

    Text Solution

    |

  15. A system of greater disorder of molecules is more probable. The disord...

    Text Solution

    |

  16. represents the distillation of mixture of liquid A and liquid B which ...

    Text Solution

    |

  17. represents the distillation of mixture of liquid A and liquid B which ...

    Text Solution

    |

  18. represents the distillation of mixture of liquid A and liquid B which ...

    Text Solution

    |

  19. represents the distillation of mixture of liquid A and liquid B which ...

    Text Solution

    |

  20. represents the distillation of mixture of liquid A and liquid B which ...

    Text Solution

    |