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Physical and Chemical Properties Of Alcohols!

Physical and Chemical Properties Of Alcohols!. By Joe Glenwright. Physical Properties!. They are influenced by the ability of alcohols to form Hydrogen bonds between –O-H groups on neighbouring molecules!. Volatility and Boiling Points!.

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Physical and Chemical Properties Of Alcohols!

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  1. Physical and Chemical Properties Of Alcohols! By Joe Glenwright

  2. Physical Properties! • They are influenced by the ability of alcohols to form Hydrogen bonds between –O-H groups on neighbouring molecules!

  3. Volatility and Boiling Points! • Hydrogen bonds are the strongest intermolecular force. They cause alcohols to have a relatively high melting and boiling points! • But they also cause alcohols to have a lower volatility than alkanes of a similar molecular mass!

  4. Solubility! • Alcohols dissolve in water because hydrogen bonds form between the polar –O-H groups of the alcohols and water molecules! • The first three members of the homologous series are soluble in water! • Solubility decreases as the chain length increases; the larger part of the alcohol molecule is made up of a non-polar hydrocarbon chain. Also the hydrocarbon part of the chain doesn’t form hydrogen bonds with water!

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