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A solute dissociate in solution accordin...

A solute dissociate in solution according to reaction `2Ato5B`, If solute shows 30% dissociation then van't Haff factor will be:-

A

2.2

B

1.45

C

2.9

D

1.9

Text Solution

Verified by Experts

The correct Answer is:
B
`{:(,2A,to,5B),("initially",2,,0),("in solution",2-2alpha,,5alpha),(i=(2-2alpha+5alpha)/(2),=,(-0.6+1.5)/(2),),(,,=1.45,):}`
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Acetic acid tends to form dimer due to formation of intermolcular hydrogen bonding. 2CH_(2)COOHhArr(CH_(3)COOH)_(2) The equilibrium constant for this reaction is 1.5xx10^(2)M^(-1) in benzene solution and 3.6xx10^(-2) in water. In benzene, monomer does not dissociate but it water, monomer dissociation simultaneously with acid dissociation constant 2.0xx10^(-5) M. Dimer does not dissociate in benzene as well as water. The pH of 0.1M acetic acid solution in water, considering the simultaneous dimerisation and dissociation of acid is :

Acetic acid tends to form dimer due to formation of intermolcular hydrogen bonding. 2CH_(2)COOHhArr(CH_(3)COOH)_(2) The equilibrium constant for this reaction is 1.5xx10^(2)M^(-1) in benzene solution and 3.6xx10^(-2) in water. In benzene, monomer does not dissociate but it water, monomer dissociation simultaneously with acid dissociation constant 2.0xx10^(-5) M. Dimer does not dissociate in benzene as well as water. The molar ration of dimer to monomer for 0.1 M acetic acid in benzene is equal to :