Respuesta :
ThThe molality of the solution will be 304.8m .
What do you meant by Molality? What is the difference between Molality and Molarity?
Molality is the amount of substance dissolved in a certain mass of solvent.
molality → No. Of moles / mass of
. Solvent(kg)
SI unit of molality is m or mol/ kg
The molality of a solution is equal to the moles of solute divided by the mass of solvent in kilograms ,while the molarity of a solution is equal to the moles of solute divided by the volume of solution in litres.
We have given here,
mass of naphthalene→16.5g
mass of benzene→53.3g
molar mass of naphthalene→128g/ mol.
molar mass of benzene→ 78g/ mol
Molality →62.8/ 206×1000
molality → 304.8 m
hence , molality of the solution will be 304.8m
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