1. Which of the following statement is consistent with the mechanism between the starting material, 4-aminophenol...
1. Which of the following statement is consistent with the mechanism between the starting material, 4-aminophenol and acetic anhydride, used to synthesized 4-acetamidophenol.
A) Acetic anhydride acts as a nucleophile attacking the alcohol group in 4-aminophenol.
B) The alcohol group of 4-aminophenol acts as a nucleophile attacking the carbonyl carbon of acetic anhydride.
C) The amine group of 4-aminophenol acts as a nucleophile attacking the carbonyl carbon of acetic anhydride.
D) Acetic anhydride acts as a nucleophile attacking the amine group in 4-aminophenol.
2. Which of the following is consistent with the theoretical MP for the product synthesized?
A) 165-172 degrees Celsius
B) 169-170 degrees Celsius
C) 168-175 degrees Celsius
D) 163-172 degrees Celsius
3. What is the purpose of re-crystallization the crude product using a hot 1:1 methanol:water solution?
A) It will purify the product as it is soluble in the hot solvent and remain soluble when the solution cools down, while impurities are insoluble once the solution cools down.
B) It will purify the product as it is insoluble in the hot solvent and becomes soluble when the solution cools down, while impurities will remain dissolved/soluble once the solution cools down.
C) It will purify the product as it is soluble in the hot solvent and becomes insoluble when the solution cools down, while impurities will remain dissolved/soluble once the solution cools down.
D) It will purify the product as it is insoluble in the hot solvent and becomes soluble when the solution cools down, while impurities are insoluble once the solution cools down.
Homework Answers
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