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Define the following term: Molal elevation constant (Kb) - Chemistry

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प्रश्न

Define the following term: 

Molal elevation constant (Kb)

परिभाषा
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उत्तर

Molal elevation constant (Kb) is defined as the elevation in boiling point of a solution when one mole of a non-volatile solute is dissolved in one kilogram of a volatile solvent.

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2013-2014 (March) All India Set 2

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संबंधित प्रश्न

8 g of glucose, C6H12O6 (Molar Mass = 180 g mol−1) is dissolved in 1 kg of water in a sauce pan. At what temperature will this solution boil? 

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AB2 is 10% dissociated in water to A2+ and B. The boiling point of a 10.0 molal aqueous solution of AB2 is ______°C. (Round off to the Nearest Integer).

[Given: Molal elevation constant of water Kb = 0.5 K kg mol−1 boiling point of pure water = 100°C]


Boiling point of a 2% aqueous solution of a non-volatile solute A is equal to the boiling point of 8% aqueous solution of a non-volatile solute B. The relation between molecular weights of A and B is ______.


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