Calculate the mass percentage of glucose solution obtained by dissolving 10g of glucose in 90g of water
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Explanation:
As the relative lowering of vapor pressure is directly proportional to the amount of dissolved solute.
The formula for relative lowering of vapor pressure will be,
where,
= vapor pressure of pure solvent (water) = 32.8 mmHg
= vapor pressure of solution = ?
= mass of solute (glucose) = 10 g
= mass of solvent (water) = 90 g
= molar mass of solvent (water) = 18 g/mole
= molar mass of solute (glucose) = 180 g/mole
Now put all the given values in this formula ,we get the vapor pressure of the solution.
Therefore, the vapor pressure of solution is, 32.44 mmHg
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