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Unformatted text preview: ____ If the impurities are soluble, a hot filtration may be needed. ____ If too much recrystallization solvent is used, the compound will recrystallize in impure form. ____ It is important that recrystallization occurs slowly so that impurities are excluded from the growing crystal. 4. (3 pts) Would the following techniques be effective for purification, characterization, or both? (Circle all correct answers.) A. Melting point: purification characterization both B. Recrystallization: purification characterization both C. Extraction: purification characterization both 5. (4 pts) Fran Chemist knows that the melting point of succinimide is 123-125 o C and benzoic acid is 122-123 o C because she has authentic samples of both. She also has an unknown with a melting point of 123 o C. How could she determine if the unknown is succinimide, benzoic acid, or neither?...
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- Summer '11