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  4. An aqueous solution of glucose was prepared by dissolving 18 g of glucose in 90 g of water. The relative lowering in vapour pressure is

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Q. An aqueous solution of glucose was prepared by dissolving 18 g of glucose in 90 g of water. The relative lowering in vapour pressure is

Solutions

Solution:

$\frac{ \Delta P}{p^\circ} = \frac{ 18 \times 18}{180 \times 90} = 0.02$