Asked by Mark
When 2.50g of an unknown solute is dissolved in 40.0g of ethanol the solution boils at 79.4C. The normal boiling point of this substance is 78.4C and it has a kb of 1.22C/m.
(a) What is the molality of this solution?
(b) What is the molecular weight of the solute?
(a) What is the molality of this solution?
(b) What is the molecular weight of the solute?
Answers
Answered by
DrBob222
delta T = Kb*m
Solve for m
molality = grams/molar mass
solve for molar mass.
Solve for m
molality = grams/molar mass
solve for molar mass.
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