What volume of water (solute) (d = 1.00 g/ml) should be added to 600. ml of ethanol (solvent, c2h5oh) in order to have a solution that boils at 95.0°c? [for ethanol, kb = 1.22 °c/m, density = 0.789 g/ ml, boiling point = 78.4°c]

Volume of water to be added is 116 ml.

Explanation:

Elevation in boiling point is given by:

= elevation in boiling point

i= vant hoff factor = 1 (for non electrolyte)

=boiling point constant =

m= molality

Density of solvent =

   (1kg=1000g)

Mass of solute (water) = x g

Density of solute =

Thus the volume of water to be added is 116 ml.

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⇒ 2.23 seconds

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