Even if two compounds have identical solubility profiles in a solvent, it is possible to effect some purification by a single recrystallization. Assume you have a 10g mixture of A and B in a 9:1 ratio of A to B and that both have a solubility at room temperature of 0.08g/mL. If you used 20mL of solvent for recrystallization, how much B would be expected to be in the crystallized material? Hint: calculate how much of A and how much of B would be expected to remain dissolved in the solvent after cooling to room temperature.
Solubility is defined as the substance's ability to undergo the formation of any solution with reference to any other substance or any other solvent. Insolubility is opposite to that of solubility.
Answer and Explanation: 1
20 mL (0.05 g.mL) = 1 g A
20 mL (0.05 g/mL) = 1 g B
So, 1 g of A and 1 g of B would be solubilized in the 20 mL
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