18 g of glucose (Mol.wt = 180) is added to (X) moles of water. The vapour pressure of water in torr for this aqueous solution is 752.4 torr. The value of (X) is -------------------------(nearest whole number)

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answer is 10.

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Detailed Solution

Psolution =pH2O = pH2O° χH2O752.4760=nH2O0.1+nH2OnH2O=0.0990.01=9.9 =10

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