Jack tries to place magnets on the door of his refrigerator. He observes that the magnets don’t stick. He guesses that the door
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<u>Answer: </u>The molar mass of solute is 115 g/mol.
<u>Explanation:</u>
Elevation in the boiling point is defined as the difference between the boiling point of the solution and the boiling point of the pure solvent.
The expression for the calculation of elevation in boiling point is:
OR
......(1)
where,
Boiling point of pure solvent (benzene) =
Boiling point of solution =
i = Vant Hoff factor = 1 (for non-electrolytes)
= Boiling point elevation constant =
= Given mass of solute = 10 g
= Molar mass of solute = ? g/mol
= Mass of solvent = 200 g
Putting values in equation 1, we get:
Hence, the molar mass of solute is 115 g/mol.
