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Phenol associates in Benzene to a certai...

Phenol associates in Benzene to a certain extent to form dimer. A solution containing `2.0 xx 10^(-2) kg` of Phenol in 1.0 kg of benzene has its freenzing point decreased by 0.69 K. The percentage degree of association of Phenol is `(K_(f)` for benzene = `5.12 kg mol^(-1)K)`

A

73.3

B

50.1

C

42.3

D

25.1

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The correct Answer is:
A
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Phenol associates in benzene to certain extent to form a dimer. A solution containing 20 xx 10^(-3) kg of phenol in 1.0 kg of benzene hs its freezing point depressed by 0.69 K . Calculate the fraction of phenol that has dimerized. ( K_(f) for benzene is 5.12 K kg mol^(-1) ).

Phenol associates in benzene to a certain extent to form a dimer. A solution containing 20xx10^(-1) kg phenol in 1 kg of benzene has its freezing pint depressed by 0.69 K. Calculate the fraction of phenol that has dimerised. "K"_("f")" for benzene"=5.12" kg mol"^(-1)"k" .

phenol associates in benzene to a certain extent in dimerisation reaction. A solution containing 0.02 kg of phenol in 1.0 kg of benzene has its freezing point depressed 0.69 k. [ K_(f)(_(6)H_(6)) =5.12 k "mol"^(-1) ]

Phenol associates in benzene to from dimer (C_(6)H_(5)OH)_(2) . The freezing point of a solution containing 5g of phenol in 250 g of benzene is lowered by 0.70^(@)C . Calculate the degree of association of phenol in benzene .( k_(f) for benzene = 5.12 Km^(-1) )

The freezing point of solution containing 0.2 g of acetic acid in 20.0 g of benzene is lowered by 0.45^(@)C . Calculate the degree of association of acetic acid in benzene. (K_(f)=5.12 K^(@) mol^(-1) kg^(-1))

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