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A solution containing 30 g of a non-volatile solute in exactly 90 g of water has a vapour pressure of 21.85 mm of Hg at 25oC. Further, 18 g of water is then added to the solution, the new vapour pressure becomes 22.15 mm of Hg at 25oC. Calculate:(i) Molar mass of the solute (in g/mol) and(ii) Vapour pressure of water at 25oC. |
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Answer» A solution containing 30 g of a non-volatile solute in exactly 90 g of water has a vapour pressure of 21.85 mm of Hg at 25oC. Further, 18 g of water is then added to the solution, the new vapour pressure becomes 22.15 mm of Hg at 25oC. Calculate: |
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