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(a) A 4% solution of sucrose is isotonic with 3% solution of an organic substance.
Calculate the molecular mass of unknown substance. (256.5 g mol-1)
(b) What is the mole fraction of a solute, in 2.55 m aqueous solution?
[AI CBSE 2006C, 05C]
(X solute = 0.043)
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How many hydrogen bonded molecules are present in cuso4.5h2o?
In CuSO4.5H2O, four water molecules are coordinated to Cu+2, while one is hydrogen bonded with SO42-.
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wrong answer
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