Naming & Drawing Alcohols

• Alcohols are all members of the same homologous series and as such have similar properties
• Alcohols


  • Methanol
  • Ethanol
  • Propanol
• Homologous series


  A series of compounds with similar properties and a repeating unit
• Alcohols contain the functional group


  Hydroxy group (-OH)
• Alcohols are often used as fuel
• Miscible with water


  Can be mixed with water in all proportions
• Properties of Alcohols


  • Increasing intermolecular forces
  • Increasing melting point/boiling point
• Increasing intermolecular forces


  Due to the increasing strength of the hydroxy group (-OH)
• Speaker: 'What did the flame look like when alcohol combusted? With a very clear blue flame'
• State symbols


  Symbols used to indicate the physical state of a substance (s = solid, l = liquid, g = gas, aq = aqueous)
• Alcohols are highly flammable