Home
Class 12
CHEMISTRY
KBr is 80% dissociated in aqueous soluti...

KBr is `80%` dissociated in aqueous solution. The freezing point of a 0.5 molal solution is `K_f =1.86 K kg mol^-1`

A

271.5 K

B

273 K

C

277 K

D

218 K

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    PATHFINDER|Exercise QUESTION BANK|250 Videos
  • SOLUTION

    PATHFINDER|Exercise QUESTION BANK|28 Videos
  • SURFACE CHEMISTRY

    PATHFINDER|Exercise QUESTION BANK|41 Videos

Similar Questions

Explore conceptually related problems

A 0.2 molal aqueous solution of weak acid HX is 20% ionized. The freezing point of solution is ( K_f =1.86 )

34.2 gm Sucrose (Molecular wt 342) is dissolved in 1000 gm of water. Find the freezing-point of the solution kf = 1.86 K Kg mol^-1

The freezing point of water is depressed by 0.37^(@)C in a 0.01 molal NaCl solution. The freezing point of a 0.02 molal solution of urea is depressed by

A solution of 1.25 g of 'P' in 50g of water lowers freezing point by 0.3^@C . Molar mass of 'P' is 94. K_f(water) is 1.86 K kg mol^(-1). The degree of association of 'P' in water is [Assume dimerisation of P]

Phenol (C_6H_5OH) is found to exist as polymer. If there is 100% polymerisation, determine number of phenol molecules polymerised in aqueous solution if 9.4 g of phenol solution in 100 g water freezes at - 0.93^@C . K_f H_2O =1.86^0C mol^-1 kg

Mole fraction of the solute in 1.00 molal aqueous solution is-

An aqueous solution of 0.1 molal concentration of sucrose should have freezing point (k_f = 1.86 k mol^(-1) kg)

KBr undergoes 80% dissociation in its 0.5(M) aqueous solution. Calculate osmotic pressure of the solution at 27^(@)C temperature.

Answer the following questions (Alternatives are to be noted): KBr undergoes 80% dissociation in its 0.5 (m) aqueous solution. Calculate osmotic pressure of the solution at 27^@C temperature.

Calculate the depression of freezing point of 0.1 (M) aqueous soln. of an weak acid for 20% dissociation given Kf = 1.86 k//hg mol^-1 .

PATHFINDER-SOLUTIONS-QUESTION BANK
  1. The temperature of a city was found tobe -9.30^@C. A car was used, who...

    Text Solution

    |

  2. The freezing point of equimolal aqueous soluticns will be highest for

    Text Solution

    |

  3. KBr is 80% dissociated in aqueous solution. The freezing point of a 0....

    Text Solution

    |

  4. A 0.2 molal aqueous solution of weak acid HX is 20% ionized. The freez...

    Text Solution

    |

  5. Which of the following aqueous solutions has minimum freezing point ?

    Text Solution

    |

  6. A .001 molal solution of a complex [MA8] in water has the freezing poi...

    Text Solution

    |

  7. Ratio of (triangle Tb)/Kb of 10 g AB2 and 14 g A2B per 100 g of solve...

    Text Solution

    |

  8. The elevation in boiling point, when 13.44 g.of freshly prepared CuCl2...

    Text Solution

    |

  9. A water sample contains 9.5% MgCl2 and 11.7% NaCl (by weight). Assumin...

    Text Solution

    |

  10. Consider equimolal aqueous solutions of NaHSO4 and NaCl with triangleT...

    Text Solution

    |

  11. Blood cells retain their normal shape in solutions which are

    Text Solution

    |

  12. The osmotic pressures of equimolar solutions of urea, BaCl2 and AICI3 ...

    Text Solution

    |

  13. Which of the following pair of solutions can be expected to be isotoni...

    Text Solution

    |

  14. Sulphur-Dioxide is passed through acidified Potassium-Dichromate solu...

    Text Solution

    |

  15. In the phenomenon of osmosis through the semipermeable membrane

    Text Solution

    |

  16. Consider following solution (i) 1M aqueous glucose solution (ii) 1M ...

    Text Solution

    |

  17. Osmotic pressure of blood is 7.40 atm at 27^@C. Number of mol of gluco...

    Text Solution

    |

  18. Which has maximum osmotic pressure at temperature T

    Text Solution

    |

  19. The relationship between osmotic pressures (pi1,pi2 and pi3) at a defi...

    Text Solution

    |

  20. Which of the following would have the highest osmotic pressure (Assume...

    Text Solution

    |