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Phthalic acid has a solubility of apporximately 18 g per 100 mL of water @ 100 degrees C and 0.62 g per 100 mL of water at 25 degrees C.

What is the minimum volume of water needed to recrystallize 50 mg of phthalic acid?

How much phthalic acis will remain in solution after recrystallization?

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