CHEM 2332H Lecture Notes - Aryne, Electrophile
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15 Jul 2014
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Related Questions
1.Which of the following statements are true about sulfuricacid's role in the esterification reaction. Note thatthere may be more than one correct answer.
sulfuric acid is added to lower the boiling point of thereaction mixture. | ||
sulfuric acid protonates the carboxylic acid in the first stepof the reaction mechanism | ||
sulfuric acid is used to ensure the alcohol will dissolve inether | ||
sulfuric acid protonates the ester in the first step of thereaction mechanism | ||
sulfuric acid protonates the alcohol in the first step of thereaction mechanism | ||
sulfuric acid reduces the concentration of OH- andslows the reverse reaction. | ||
sulfuric acid is used to ensure the carboxylic acid willdissolve in ether | ||
sulfuric acid is added to react with excess sodium bicarbonatein the first step of the reaction | ||
sulfuric acid acts as a catalyst for the reaction |
2.Which of the following below explain why the alcohol is usedin excess in this reaction. Note that there may be morethan one answer.
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3.Why is a sodium bicarbonate solution used to extract the ether(organic) layer. Note that there may be more than onecorrect answer.
sodium bicarbonate reacts with the ester to make it soluble inwater. | ||
sodium bicarbonate should not be added, sulfuric acid should beadded during the extraction. | ||
sodium bicarbonate reacts with any leftover sulfuric acid toform a salt that is INsoluble in the organic layer. | ||
sodium bicarbonate reacts with the alcohol to make it solublein water. | ||
sodium bicarbonate is added because it is less expensive thanadding hydrochloric acid. | ||
sodium bicarbonate reacts with any leftover carboxylic acid toform a salt that is INsoluble in the organic layer. | ||
sodium bicarbonate reacts with any leftover carboxylic acid toform a salt that is soluble in the organic layer. | ||
sodium bicarbonate is used to react with ether and make theyield of the ester product greater. | ||
sodium bicarbonate reacts with any leftover sulfuric acid toform a salt that is soluble in the organic layer. |