12.7) i) Predict the products of the reaction that occurs when myristic acid (below) reacts with water. O || CH3(CH₂)2C-OH + H₂O=CH₂CH₂)2C-0² + H₂O + myristate ion (base form) myristic acid (acid form) ii) Name the base form of myristic acid. myristic acid myristate ion iii) In previous chapters, you learned that the relative amounts of a conjugate pair's acid form and base form that are present in an aqueous solution depends on the pH of the solution and the pK, of the particular acid (as described by the Henderson-Hasselbalch Equation). The pK, of carboxylic acids (including fatty acids) is about 5. For the myristic acid/myristate ion pair, predict the species that is predominant at physiological pH (~7.4). At physiological pH, pH (7.4) > pka(5), base form (myristate ion) is predominant

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Chapter1: Chemical Foundations
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Solution
Condition
pH <pka
pH >pKa
pH = pka
Relative Amounts of
Acid and Base Forms
[HA] > [A-]
[A-] > [HA]
[HA] = [A-]
Transcribed Image Text:HINT: Solution Condition pH <pka pH >pKa pH = pka Relative Amounts of Acid and Base Forms [HA] > [A-] [A-] > [HA] [HA] = [A-]
12.7)
i) Predict the products of the reaction that occurs when myristic acid (below) reacts with water.
O
O
||
11
CH₂(CH₂)2C-OH + H₂O=CH₂CH₂) 12 C-0² + H3O+
myristate ion (base form)
myristic acid
(acid form)
ii) Name the base form of myristic acid.
myristic acid -> Myristate ion
iii) In previous chapters, you learned that the relative amounts of a conjugate pair's acid form and base form that are present
in an aqueous solution depends on the pH of the solution and the pK, of the particular acid (as described by the
Henderson-Hasselbalch Equation). The pK, of carboxylic acids (including fatty acids) is about 5.
For the myristic acid/myristate ion pair, predict the species that is predominant at physiological pH (~7.4).
At physiological pH, pH (7.4) > pka(5), base form (myristate ion) is predominant
Transcribed Image Text:12.7) i) Predict the products of the reaction that occurs when myristic acid (below) reacts with water. O O || 11 CH₂(CH₂)2C-OH + H₂O=CH₂CH₂) 12 C-0² + H3O+ myristate ion (base form) myristic acid (acid form) ii) Name the base form of myristic acid. myristic acid -> Myristate ion iii) In previous chapters, you learned that the relative amounts of a conjugate pair's acid form and base form that are present in an aqueous solution depends on the pH of the solution and the pK, of the particular acid (as described by the Henderson-Hasselbalch Equation). The pK, of carboxylic acids (including fatty acids) is about 5. For the myristic acid/myristate ion pair, predict the species that is predominant at physiological pH (~7.4). At physiological pH, pH (7.4) > pka(5), base form (myristate ion) is predominant
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