Question

The amount of urea to be dissolved in 500 ml of water
(K =186 K mole' in 100g solvent) to produce a
depression of 0.186°C in freezing point is
(A) 9 g
(B) 6 g
(C)3g
(D) 0.3 g

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Answer 1

Answer:

(C)3g

Explanation:

Solution :

The amount of urea to be dissolved in 500 ml of water

(K =186 K mole' in 100g solvent) to produce a

depression of 0.186°C in freezing point is 3g

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Answer 2

Mathematical Expression of Depression in Freezing point -

- wherein

m = molarity of solvent

= cryoscopic constant

molal depress const

Units =