Alcohols

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Alcohols

  1. 1. <ul><li>The Alcohols </li></ul>
  2. 2. C 2 H 5 OH <ul><li>Ethanol is the best known alcohol </li></ul>C C H H H H H H O
  3. 3. <ul><li>What happens if we add sodium to ethanol? </li></ul>
  4. 4. 2C 2 H 5 OH + 2Na C C H H H H H H O + 2 2Na
  5. 5. Gives Sodium ethoxide C C H H H H H H 2 O + 2 Na _ +
  6. 6. <ul><li>Note Only the hydrogen atom connected to the oxygen atom is involved in the reaction . </li></ul><ul><li>Alcohols react with sodium in the same way as water. </li></ul><ul><li>This is because both contain the OH group </li></ul>
  7. 7. <ul><li>Sodium and water give sodium hydroxide </li></ul><ul><li>Sodium hydroxide like sodium ethoxide is a solid at room temperature. </li></ul>
  8. 8. Task for you <ul><li>Write down the structures for the alcohols butanol and propanol. </li></ul>
  9. 9. <ul><li>Write balanced equations for: </li></ul><ul><li>1. Sodium reacting with water. </li></ul><ul><li>2. Sodium reacting with methanol. </li></ul>
  10. 10. 2Na 2H 2 O 2NaOH H 2 + + = 2CH 3 OH + 2Na 2CH 3 ONa + H 2 =

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