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Enthalpy of Solution

89.The degree...

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89.The degree of inonization of HF in 0.100 m aqueous solution is [ freezing point of the solution = -0.197'C and Kf for water = 1.86'C]

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0.2

molal aqueous solution of a weak acid,

H X

. the degree of ionization is

0.3

K_{f}

1.85

, find the freezing point of the solution.

Q. In 0.2 molal aqueous solution of a weak acid

H X

, the degree of ionization is 0.3. Taking

K_{f}

for water as 1.85, the freezing point of the solution will be nearest to :

Q. An aqueous solution of a non-volatile solute boils at

{100.17}^{\circ} C .

What is the depression in the freezing point for the solution in

^{\circ} C

[K_{b}

K_{f}

0.512

{1.86}^{\circ} C / m

]

0.2

molal aqueous solution of a weak acid

H X

, the degree of ionization is

0.3

K_{f}

{1.85}^{o} C m^{- 1}

, the freezing point of the solution will be nearest to:

0.1

molal aqueous solution of a week acid is

30

K_{f}

{1.86}^{\circ} C / m

, the freezing point of the solution will be:

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