the solete will 4 and this w t Il re de ce teld issolve so (c The hot solution i

Question

the solete will 4 and this w t Il re de ce teld issolve so (c The hot solution is cooled ice water crystallization, rather than being allowed To to cool slowly to room temperature before placing in ice. rom fine antocid get a reasonable yield ot s analgesic mixture the so ution will probably need to sit erature ton for 2 hours or in the ice bath 15 at room temper minutes atten slow cooling 40 naar Noom temperature (d) The was of funnel is done with room temperature solventrather than crystals on the Buchner with ice-cold solvent. 2. What is the crystallization solvent used in this experiment? distilled wafer

Explanation / Answer

c) You are right. Instead of rapid cooling using the ice bath, the solution should be left to cool slowly to attain room temperature.

d) To minimize the soluble impurities to be left on the surface of the crystals. The crystals should be washed with ice-cold solvent on Buchner funnel. Furthermore to minimize losses due to re-dissolving of crystals the solvent should be as cold as possible.

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