Carboxylic acids

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  • Created by: ava.scott
  • Created on: 28-12-14 12:19
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  • Carboxylic Acids
    • Aldehydes/Ketones
      • tetrahyrdridoboarte
      • uses 2[H] per c-acid group
    • and metals
      • forms a carboxylate ion, to make a salt and hydrogen
    • and water
    • and carbonates
      • reacts like a weak acid, to make carbon dioxide and water and a salt.
    • and hydroxides
      • makes a salt, and water.
    • and alcohols
      • can form esters
        • must underdo acid or alkali hydrolysis
          • acid (e.g. conc sulfuric acid)
            • clean break into the c-acid and alcohol
          • alkali (e.g. sodium hydroxide)
            • forms the alcohol and a carboxylate salt.
        • alcohol goes at the beginning, c-acid at the end.
      • catalyst: concentrated sulphuric acids. conditions- reflux
    • NAMING
      • add oic to the end
    • NAMING SALTS
      • PUT -OATE AT THE END. e.g. methanoic acid would make a methanoate salt.
  • dissolves to make a weak acid
    • and water
    • Chains of 1-4 carbons are very soluble, but any longer than that, the non-soluble carbon chain does not react with water, and reduces siolubility.
  • TO TEST FOR
    • tollens reagent (ammoniacal silver nitrate)
      • will cause a silver mirror effect, distinguishing it from aldehydes.
        • c-acids reduce the silver ion to make solid silver.
    • Carboxylic Acids
      • Aldehydes/Ketones
        • tetrahyrdridoboarte
        • uses 2[H] per c-acid group
      • and metals
        • forms a carboxylate ion, to make a salt and hydrogen
      • and carbonates
        • reacts like a weak acid, to make carbon dioxide and water and a salt.
      • and hydroxides
        • makes a salt, and water.
      • and alcohols
        • can form esters
          • must underdo acid or alkali hydrolysis
            • acid (e.g. conc sulfuric acid)
              • clean break into the c-acid and alcohol
            • alkali (e.g. sodium hydroxide)
              • forms the alcohol and a carboxylate salt.
          • alcohol goes at the beginning, c-acid at the end.
        • catalyst: concentrated sulphuric acids. conditions- reflux
      • NAMING
        • add oic to the end
      • NAMING SALTS
        • PUT -OATE AT THE END. e.g. methanoic acid would make a methanoate salt.

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