Carboxylic Acids and their Derivatives: General Exam Questions

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14 Terms

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- Acid Anhydride + Alcohol → Ester + Carboxylic Acid

<p>- <strong>Acid Anhydride + Alcohol → Ester + Carboxylic Acid</strong></p>
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  • Triglyceride + 3NaOH → Glycerol + 3 Sodium Carboxylate

  • For saponification questions, remember it always reacts with 3NaOH,Glycerol stays the exact same, and the Carboxylate ions are of the longest of each chain (e.g.C17H33) but with an addition COONa

  • Biodiesels are the same but the Na switched for CH3

(methyl ester)

<ul><li><p>Triglyceride + 3NaOH&nbsp;→ Glycerol + 3 Sodium Carboxylate</p></li><li><p>For saponification questions, remember it always reacts with<strong> 3NaOH</strong>,<strong>Glycerol stays the exact same</strong>, and the Carboxylate ions are of the longest of each chain (e.g.C<sub>17</sub>H<sub>33</sub>) but with an <strong>addition COONa</strong></p></li><li><p>Biodiesels are the same but the <strong>Na switched for CH<sub>3</sub></strong></p></li></ul><p>(methyl ester)</p>
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Nucleophilic Addition-Elimination

  • Cyclic compounds with OH react with themselves to form the compound, as shown here

<p>Nucleophilic Addition-Elimination</p><ul><li><p>Cyclic compounds with OH react with themselves to form the compound, as shown here</p></li></ul><p></p>
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Ester + H₂O → Fatty Acid(Carboxylic Acid,RCOOH) + Glycerol(CH₂OHCHOHCH₂OH)

b)Keeping the foodstuff dry

<p>Ester + H₂O&nbsp;→ Fatty Acid(Carboxylic Acid,RCOOH) + Glycerol(CH₂OHCHOHCH₂OH)</p><p>b)Keeping the foodstuff dry</p>
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  • Anti-oxidants react with the free radicals, and are used up in the reaction, hence not being regenerated.

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Titration Question

-Write out Equation in regards to NaOH, if not, usually a 1:1 MR

-Work backwards, always use ALL data provided

<p>Titration Question</p><p>-Write out Equation in regards to NaOH, if not, usually a 1:1 MR</p><p>-Work backwards, <strong>always use ALL data provided</strong></p>
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