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Osmosis

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A solution of urea (NH2CONH2) in water is labelledas 20% by weight. The molality of the solution is

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Similar questions

Q. The molality of a urea solution in which 0.0200 g of urea

(N H_{2} C O N H_{2})

0.400 d m^{3}

of water at STP is

Q. The molal elevation constant for water is

0.56 {K kg mol}^{- 1}

. Calculate the boiling point

(in^{\circ} C)

of a solution made by dissolving

6 g

(N H_{2} C O N H_{2})

200 g

Calculate the mass of urea (NH₂CONH₂) required in making 2.5 kg of 0.25 molal aqueous solution.

Q. A solution of glucose

(C_{6} H_{12} O_{6})

in water is labelled as 10% by weight. What would be the molality of the solution?
(Molar mass of glucose = 180 g mol

^{- 1}

)

Q. (a) Define the following terms:
(i) Ideal solution (ii) Azeotrope (iii) Osmotic pressure
(b) A solution of glucose

(C_{6} H_{12} O_{6})

in water is labelled as

10

% by weight. What would be the molality of the solution?
(Molar mass of glucose

= 180 g / m o l

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