Home
Class 12
CHEMISTRY
12.2 g of benzoic acid (Mw=122) in 100 g...

`12.2 g` of benzoic acid `(Mw=122)` in `100 g` benzene has depression in freezing point `2.6^(@)`, `K_(f)=5.2^(@) kg mol^(-1)`. If there is ``100%` polymerzation, the number of molecules of benzoic acid in associated state is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
`m`=(benzoic acid)
`=(1000K_(b)W_(1))/(DeltaT_(b)W_(2))`
=`244` (twice of actual molecular weight)
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Exercise (Assertion-Reasoning)|18 Videos

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Exercise (Interger)|8 Videos

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Exercises (Multiple Correct)|25 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

12.2 g of benzoic acid (Mw=122) in 100 g water has elevation in boiling point of 0.27.K_(b)=0.54 K kg mol^(-1) .If there is 100% polymerization, the number of molecules of benzoic acid in associated state is

12.2g of benzoic acid in 100 g water decreases freezing point upto -0.93^@C K_f = 1.86KKG/mole. if there is 100% polymerisation, the number of molecules of benzoic acid in associated state is

12.2gm benzoic acid (M =122) in 100g H_(2)O has elevation of boiling point of 0.27^(@)C, K_(b) = 0.54 K kg/mole. If there is 100% dimerization the no.of molecules of benzoic acid in associated sate is:

2.56g of sulfur in 100 g of CS_(2) of has depression in freez point of 0.01^(@)C.K_(f)=0.1^(@) mol al^(-1) . Hence, he atomicity of sulfur is CS_(2) is

CENGAGE CHEMISTRY-SOLUTIONS-Exercises (Single Correct)
  1. Total Vapour pressure of mixture of 1molA(p(A)^(0)=150 "torr")and 2mol...

    Text Solution

    |

  2. The vapour pressure of pure benzene C(6)H(6) at 50^(@)C is 268 "torr"....

    Text Solution

    |

  3. The osmotic pressure of blood is 7.40 atm at 27^(@) C.The number of mo...

    Text Solution

    |

  4. PtCl(4).6H(2)O can exist as a hydrated complex. 1 m aqueous solution h...

    Text Solution

    |

  5. Which of the following solutions (1 molal) will have the maximum freez...

    Text Solution

    |

  6. The depression in freezing point of 0.01 m aqueous CH(3)CooH solution ...

    Text Solution

    |

  7. pH of 0.1 M monobasic acid is found to be 2 . Hence its osmotic pressu...

    Text Solution

    |

  8. The lowering of vapour pressure due to a solute in a 1 m aqueous solut...

    Text Solution

    |

  9. The most likely of the following mixtures to be an ideal solution is

    Text Solution

    |

  10. Mole fraction of component A in vapour phase is chi(1) and that of com...

    Text Solution

    |

  11. Which has the maximum osmotic pressure at temperature T?

    Text Solution

    |

  12. The relative decreases in the vapour pressure of an aqueous solution c...

    Text Solution

    |

  13. Mixture of volatile components A and B has a total vapour pressure (in...

    Text Solution

    |

  14. FeCl(3) on reaction with K(4)[Fe(CN)(6)] in aqueous solution gives blu...

    Text Solution

    |

  15. 12.2 g of benzoic acid (Mw=122) in 100 g benzene has depression in fre...

    Text Solution

    |

  16. 25 mL of an aqueous solution of KCl was found to requires 20 mL of 1M ...

    Text Solution

    |

  17. Based on the given diagram, which of the following statements regardin...

    Text Solution

    |

  18. Following questions are based on the following activites (A) with obse...

    Text Solution

    |

  19. Following questions are based on the following activites (A) with obse...

    Text Solution

    |

  20. Following questions are based on the following activites (A) with obse...

    Text Solution

    |