Home
Class 12
CHEMISTRY
The molal depression constant for water ...

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

Text Solution

Verified by Experts

`Deltat_(f) =` molability `xx K_(f)`
`= 0.05 xx 1.86 = 0.093^(@)C`
`(T_(f))_(s) = T_(0) -0.093 = 0-093`
`(T_(f))_(s) = -0.093^(@)C`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    ALLEN|Exercise SOLVED EXAMPLES|10 Videos
  • SOLUTIONS

    ALLEN|Exercise EXERCISE -01|53 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 a 0.05 molal solution of a non-electrolyte in water is: ( K_(f) = 1.86 "molality"^(-1) )

The freezing point of 0.05 m solution of glucose in water is (K1 = 1.86°C m^(-1) )

The molal freezing points constant of water is 1.86 K kg "mol"^(-1) . Therefore, the freezing point of 0.1 M NaCl in water is expected to be 1) -1.86^(@)C 2) -0.372^(@)C 3) -0.186^(@)C 4) +0.372^(@)C

The molal elevation constant of water = 0.52 K m^(-1) . The boiling point of 1.0 molal aqueous KCl solution (assuming complete dissociation of KCl ) should be

The molal elevation constant of water = 0.52 K m^(-1) . The boiling point of 1.0 molal aqueous KCl solution (assuming complete dissociation of KCl ) should be

Depression in freezing point of solution of electrolytes are generally

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

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

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 freezing point depression constant of benzene is 5.12 K kg mol^(-1) . The freezing point depression for the solution of molality 0.078m containing a non-electrolyte solute in benzene is

ALLEN-SOLUTIONS-EXERCISE -05 [B]
  1. The molal depression constant for water is 1.86^(@)C. The freezing poi...

    Text Solution

    |

  2. The van't Hoff factor for 0.1 M Ba(NO(3))(2) solution is 2.74 The degr...

    Text Solution

    |

  3. In the depression of freezing point experimet, it is found that: I. ...

    Text Solution

    |

  4. To 500 cm^(3) of water, 3.0xx10^(-3) kg of acetic acid is added. If 23...

    Text Solution

    |

  5. The vapour pressure of two miscible liquids (A) and (B) are 300mm of H...

    Text Solution

    |

  6. During depression of freezing point in a solution the following are in...

    Text Solution

    |

  7. Match the boiling point with K(b) for x,y and z, if molecular weight o...

    Text Solution

    |

  8. A0.004 M solution of Na(2)SO(4) is isotonic with 0.010 M solution of g...

    Text Solution

    |

  9. 12.2 g of benzoic acid is dissolved in (i) 1 kg acetone (K(b) = 1.9 K ...

    Text Solution

    |

  10. The elevation in boiling point for 13.44 g of CuCl(2) dissolved in 1 k...

    Text Solution

    |

  11. 75.2 g of phenol is dissolved in a solvent of Kf=14. If the depression...

    Text Solution

    |

  12. When 20 g of naphthoic acid (C(11)H(8)O(2)) is dissolved in 50 g of be...

    Text Solution

    |

  13. Properties such as boiling point, freezing point and vapour pressure o...

    Text Solution

    |

  14. Properties such as boiling point, freezing point and vapour pressure o...

    Text Solution

    |

  15. Water is added to the solution M such that the mole fraction of water ...

    Text Solution

    |

  16. The henry's law constant for the solubility of N2 gas in water at 298 ...

    Text Solution

    |

  17. The freezing point (.^(@)C) of a solution containing 0.1 g of K(3)[Fe(...

    Text Solution

    |

  18. For a dilute solution containing 2.5 g of a non-volatile non-electroly...

    Text Solution

    |

  19. Benzene and naphthalene form an ideal solution at room temperature. Fo...

    Text Solution

    |

  20. A compound H(2)X with molar weight of 80 g is dissolved in solvent ...

    Text Solution

    |

  21. If the freezing point of a 0.01 molal aqueous solution of a cobalt(III...

    Text Solution

    |