QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Butanoic acid has an acrid taste and a terribly unpleasant odor. It is found in rancid butter and Parmesan cheese. In aqueous solution, butanoic acid undergoes the reversible reaction shown.
Label the conjugate acid-base pairs.
Butanoic acid | water | Butanoate ion | Hydronium ion
| Answer Bank | |
| --- | --- |
| conjugate acid | |
| conjugate base | |
| base | |
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Answer
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Step 1: Identify the conjugate acid-base pairs
In this question, we are given butanoic acid and water, which undergo a reversible reaction to form butanoate ion and hydronium ion. A conjugate acid-base pair consists of an acid and its conjugate base. The conjugate base is formed when an acid donates a proton (H+), and the conjugate acid is formed when a base accepts a proton.
Step 2: Identify the acid and base in the given reaction
Butanoic acid is an acid as it donates a proton (H+) in the reaction. Water is a base as it accepts a proton (H+) in the reaction.
Final Answer
The conjugate acid-base pairs in the given reaction are: * Butanoic acid and butanoate ion * Water and hydronium ion Therefore, the answer is: | conjugate acid | hydronium ion | | --- | --- | | conjugate base | butanoate ion | | base | water |
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