Home
Class 12
CHEMISTRY
The freezing point of 1 molal NaCl solut...

The freezing point of `1` molal `NaCl` solution assuming `NaCl` to be `100%` dissociated in water is:

A

`-1.86^(@)C`

B

`-3.72^(@)C`

C

`+1.86^(@)C`

D

`+3.72^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaT_(f) = 1 xx k_(f) xxm = 2 xx 1.86 xx 1 = 3.72`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    ALLEN|Exercise EXERCISE -02|44 Videos

  • SOLUTIONS

    ALLEN|Exercise EXERCISE-03|22 Videos

  • SOLUTIONS

    ALLEN|Exercise SOLVED EXAMPLES|10 Videos

  • S-BLOCK ELEMENTS

    ALLEN|Exercise EXERCISE -3|1 Videos

  • Some Basic Concepts of Chemistry (Mole concept)

    ALLEN|Exercise All Questions|39 Videos

Similar Questions

Explore conceptually related problems

The freezing point of one molal NaCl solution assuming NaCl to be 100% dissociated in water is (molal depression constant= 1.86)

The lowering in freezing point of 0.75 molal aqueous solution NaCI (80% dissociated) is [Given, K_f , for water 1.86 K kg mol^(-1)]

What will be the freezing point of 0.2 molal aqueous solution of MgBr_(2) ? If salt dissociates 40% in solution and K_(f) for water is 1.86 KKg mol^(-1)

A weak electrolyte XY is 5% dissociated in water. What is the freezing point of a 0.01 molal aqueous solution of XY ? The cryoscopic constant of water is 1.86 K/m.

The molal depression constant for water is 1.86^(@)C . The freezing point of a 0.05-molal solution of a non-electrolyte in water is

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

A solution of NaCl in water is…..

The freezing point depression of 0.1 molal NaCl solution is 0.372 K. What conclusion can you draw about the molecular state of NaCl in water. K_f of water = 1.86 k/m.

ALLEN-SOLUTIONS-EXERCISE -01
  1. Cryoscopic constant of a liquid is:

    Text Solution

    |

  2. At certain Hill-station pure water boils at 99.725^(@)C. If K(b) for w...

    Text Solution

    |

  3. The freezing point of 1 molal NaCl solution assuming NaCl to be 100% d...

    Text Solution

    |

  4. 10 gram of solute with molecular mass 100 gram mol^(-1) is dissolved i...

    Text Solution

    |

  5. Depression in freezing point of solution of electrolytes are generally

    Text Solution

    |

  6. A liquid is in equilibrium with its vapour at its boiling point. On av...

    Text Solution

    |

  7. Which salt may show the same value of vant Hoff factor (i)as that of K...

    Text Solution

    |

  8. Which compound corresponds vant Hoff factor (i) to be equal to 2 in di...

    Text Solution

    |

  9. In which of the following the vant Hoff factor (i) is equal to one:

    Text Solution

    |

  10. If the observed and theoretical molecular mass of NaCI is found to be ...

    Text Solution

    |

  11. The substance A when dissolved in solvent B shows the molecular mass c...

    Text Solution

    |

  12. Which of the following conditions is not correct for ideal solution:

    Text Solution

    |

  13. Solution distilled without change in composition at a temperature is c...

    Text Solution

    |

  14. If mole fraction of the solvent in a solution decreases than:

    Text Solution

    |

  15. An azeotropic solution of two liquids has a boiling point lower than e...

    Text Solution

    |

  16. The passing of solvent particles through semipermeable membrane is cal...

    Text Solution

    |

  17. From the colligative properties of solution which one is the best meth...

    Text Solution

    |

  18. As a result of osmosis the volume of the concentrated solution:

    Text Solution

    |

  19. The osmotic pressure of a solution of benzoic acid dissolved in benzen...

    Text Solution

    |

  20. Two solutions have different osmotic pressures. The solution of higher...

    Text Solution

    |