6Carboxylic Acid - Carboxylic acids 1o alcohol [O] methanol...

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Carboxylic acids 1 o alcohol aldehyde carboxylic acid [O] [O] methanol methanal methanoic acid δ - δ + H - bond acceptor H - bond donor very high b.p. 2 H-bonds / molecule δ -
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Carboxylic acids Nomenclature 1. Carboxyl group ( COOH ) always C 1 2. Family name is longest C chain with COOH 3. Suffix is “- oic acid 4. Carbonyl groups ( C = O ) called “oxo” Hydroxy groups ( OH ) called “hydroxy”
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Carboxylic acids oic acid 1 2 3 4 butan 2-ethyl oic acid 1 2 3 4 5 6 hexan 2-ethyl- 4-hydroxy 2-ethyl 4-hydroxy add [O] oic acid hexan 2-ethyl- 4-oxo CH 3 – CH 2 – CH – CH 2 – CH – CO 2 H OH CH 2 – CH 3 O CH 3 – CH 2 – CH – C CH 2 – CH 3 O OH
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Carboxylic Acids Chemical properties = C=O + OH = Bronsted acid H + donor weak acids, small dissociation HA H + + A - + H + K a = [ A - ] [ H + ] K a 1 x 10 -5 pH 2.5 for 1M [ HA ]
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Carboxylic Acids + H + + H + - resonance structure anion stabilized
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Carboxylic Acids acidity also affects solubility short chain acids soluble long chain acids insoluble add a strong base (OH - ) H-bonding LDF soluble C O OH C O OH - ion - dipole benzoic acid
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6Carboxylic Acid - Carboxylic acids 1o alcohol [O] methanol...

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