(a) Define the following terms : (i) Molarity (ii) Molal elevation constant (Kb) (b) A solution containing 15 g ure

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Q 2681812727.     (a) Define the following terms :
(i) Molarity
(ii) Molal elevation constant (Kb)

(b) A solution containing 15 g urea (molar mass = 60 g `mol^-1`) per litre of solution in water has the same osmotic pressure (Isotonic) as a solution of glucose (molar mass = 180 g `mol^-1`) in water. Calculate the mass of glucose present in one litre of its solution.
CBSE-12th 2014

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