Rank the following three carboxylic acids in order of decreasing acidity (most a
ID: 518360 • Letter: R
Question
Rank the following three carboxylic acids in order of decreasing acidity (most acidic rightarrow least acidic). (a) 4-chlorobutanoic acid (b) 3-chlorobutanoic acid (c) 2-Chlorobutanoic acid (d) butanoic acid Draw the structures of the two resonance forms of the propanoate anion: Draw the structure of the dimer of acetic acid: Draw a schematic diagram of a micelle. Labeling the parts/regions is optional. For an acid-base equilibrium in aqueous solution, the Henderson-Hasselbalch equation states: pH = pK_a + log [conjugate base]/[acid] sometimes, it is used in the following form: log ([A^-]/[AH]) = pH - pK_a Here is the pH scale: For any acid (AH) with a pK_a value 4.5, what is the minimum pH required to ensure that the ratio of the conjugate acid (AH) to its conjugate base form (A^) is at least 1,000?Explanation / Answer
15) The answer is
c>b>a>d
As Chlorine is a -I group, it pulls the shared electron pair to itself, making the release of proton easier. As the position of Chlorine moves away fro -COOH group, the -I effect decreases.
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