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MW (g/mol) / MP ( oC) / Solubility in cold H2O (g / 100 mL)...

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Chemistry

MW (g/mol) / MP ( oC) / Solubility in cold H2O (g / 100 mL) /Solubility in boiling H2O (g / 100 mL)

Acetanilide 135.2 / 114 / 0.54 / 5.0

Phenacetin 179.2 / 135 / 0.076 / 1.22

Using solubility data in the table of reagents, calculate theminimum amount water needed to recrystallize:

i. 1.5 g of phenacetin.

ii. 1.5 g of acetanilide.

b. If the minimum amount of water needed is used, how many gramsof each compound would crystallize out of solution following therecrystallization?

i. phenacetin

ii. acetanilide

Answer & Explanation Solved by verified expert
4.1 Ratings (619 Votes)
aThe solubility of phenacetin in hot water is 122 g 100 ml ofhot waterTo calculate minimum amount of water needed torecrystallize we just invert the solubility    See Answer
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