Question

If the sum of elevation in boiling point and depression
in freezing point of an aqueous solution of urea is
10, find molaliry of the solution

Answer 1

The molality of the explanation is 19.23.

Given,

The measure of elevation in boiling point and depression

in freezing point of an aqueous solution of urea is given 10.

To Find,

We can solve the provided pro

The molality of the solution.

Solution,

As we realize, depression is at its boiling point,

ΔTb = Kb.m

here,

ΔTb = Elevation in boiling point = 0.52

Kb = molal height of boiling point = 0.52

m = molality of solution =?

10 = 0.52 m

$m \: = \frac{10 }{0.52}$

= 19.23

Therefore, the molality of the solution is 19.23.

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Answer 2

Molality of the solution = 19.230

GIVEN:- The sum of elevation in boiling point and depression in freezing point of an aqueous solution of urea is 10.

To Find:- molality of the given solution

SOLUTION:-

As we know depression is at its boiling point.

∆Tb = Kb × m

Where,

∆Tb = Elevation in boiling point = 10

Kb = Molal height of boiling point = 0.52

m = molality of solution =?

By putting the values in the formula

∆Tb = Kb × m

$10 = 0.52 \times m \\ \frac{10}{0.52} = m \\ m = \frac{10}{0.52} \\ m = 19.230$

Hence, the Molality of the solution = 19.230

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