A mixture of three compounds, A, B, and C is to be separated and purified by crystallization Their solubilities in g/100mL ethanol are given below: Solvent A Cold 1.05 5.60 4.20 Hot 20.5 2.3 3.50 a. If a mixture containing 4.0 g of each A, B and C is recrystallized from 100 mL ethanol, which compound would be obtained pure? b. If the filtrate from (a) is evaporated to 50 mL, which of the compound(s) will separate upon cooling? What is its purity?
A mixture of three compounds, A, B, and C is to be separated and purified by crystallization Their solubilities in g/100mL ethanol are given below: Solvent A Cold 1.05 5.60 4.20 Hot 20.5 2.3 3.50 a. If a mixture containing 4.0 g of each A, B and C is recrystallized from 100 mL ethanol, which compound would be obtained pure? b. If the filtrate from (a) is evaporated to 50 mL, which of the compound(s) will separate upon cooling? What is its purity?
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter13: The Chemistry Of Solutes And Solutions
Section: Chapter Questions
Problem 29QRT
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