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Benzene melts at 5.50^(@)C and has a fre...

Benzene melts at `5.50^(@)C` and has a freezing point depression constant of `5.10^(@)C dot" m^(-1)` . Calculate the freezing point of a solution that contains `0.0500` mole of acetic acid , `CH_(3)COOH` , in 125 g of benzene if acetic acid forms a dimer in this solvent :

A

`3.46^(@)C`

B

`4.48^(@)C`

C

`5.24^(@)C`

D

`6.01^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • The freezing point depression constant (K_(f)) of benzene is 5.12 K kg mol^(-1) . The freezing point depression for the solution of molality 0.078 m containing a non-electrolyte solute in benzene is (rounded off upto two decimal places)

    A
    0.20 K
    B
    0.80 K
    C
    0.40 K
    D
    0.60 K

  • The pH of a buffer solution containing 0.2 mole per litre CH_(3)COONa and 1.5 mole per litre CH_(3)COOH is ( K_(a) for acetic acid is 1.8 xx 10^(-5) )

    A
    4.87
    B
    5.8
    C
    2.4
    D
    9.2