carboxylic acids and derivatives 3.3.9 in papers 2 + 3
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what type of compound is shown by the formula RCOOK?
carboxylate salt
why is aqeous ethanol a suitable solvent when heating coconut oil with KOH?
dissolves both the oil and KOH
how are esters formed?
• reacting alcohols and carboxylic acids in the prescence of H2SO4 catalyst
what are comon uses of esters?
• solvents • plasticisers • perfumes • food flavourings
why is ethanoic anhydrides used over ethanoyl chloride?
• cheaper • less corrosive • less vulnerable to hydrolysis • less dangerous to use (doesnt product HCl)
what can lead to a lower yield in recrystallisation?
• Crystals lost when filtering or washing • Some product stays in solution after recrystallisation • other side reactions occurring