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Polymerisation of Alkynes

Acetic acid d...

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Acetic acid dimerises in benzene solution .The value of vant Hoff factor for dimerization of acetic acid is 0.6. Find out the % dimerization of acetic acid

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Q. Acetic acid associates as dimers in benzene. What is the Van’t Hoff factor (i) if the degree of association of acetic acid is 50%?

Q. The freezing point of a solution of acetic acid (mole fraction =

0.02

) in benzene is

277.4 K

. Acetic acid exists partly as a dimer

2 A ⇌ A_{2} .

Determine the equilibrium constant for dimerisation. Freezing point of benzene is

278.4 K

K_{f}

5

.

Q. Dimer of acetic acid in liquid benzene is in equilibrium with acetic acid monomer at certain temperature and pressure. If 25% of the dimer molecules are separated out then

Q. The freezing point of a solution containing

0.2

g of acetic acid in

20.0

g benzene is lowered by

{0.45}^{o} C

. The degree of association of acetic acid in benzene is:

[Assume acetic acid dimerizes in benzene and

K_{f}

= 5.12

^{- 1}

]

Q. Acetic acid is a dimer in benzene due to:

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