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The Nature of Organic Chemistry

The Nature of Organic Chemistry. DNA, Proteins, fats, gasoline, dyes, fabrics, plastics, pesticides, antibiotics… ice cream…. What is Organic Chem?. Organic or Inorganic?. study of ______________________( usually with H)

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The Nature of Organic Chemistry

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  1. The Nature of Organic Chemistry DNA, Proteins, fats, gasoline, dyes, fabrics, plastics, pesticides, antibiotics… ice cream…

  2. What is Organic Chem? Organic or Inorganic? • study of ______________________(usually with H) • Organic does not mean _________and no longer necessarily means __________

  3. Why Carbon??? • Living things are Carbon based! • Properties of Carbon make it very versatile

  4. naturally occurring forms of pure carbon: diamond, graphite, amorphous (coal) 4 bonding electrons (= 4 bonds) Sgle, dble or tple bonds Can form long chains Bonds well with other elements (O, N, H, Cl…) = a variety of geometric shapes!! Properties of Carbon

  5. Putting together organic compounds

  6. Functional Groups or “Families” • common structural features are grouped together = functional group • Generally: similar structural feature = ___________________________________________

  7. Predicting Properties Based on functional groups you can predict properties like: • ____________________ • ____________________ • ____________________ • ____________________

  8. Breaking Attractions stronger inter. forces = stronger attractions = harder to break apart so increased melting and boiling point YOU MUST BE ABLE TO FIND DIPOLES & USE TO PREDICT POLARITY!!

  9. May the FORCE be… _______________(London Dispersion) • caused by ____movement • more ____means more forces • the closer a molecule can “pack” the stronger these forces (shape) ________________ • caused by permanent + and - poles of a molecule _______________________ • severe dipole (check out electronegativity!) ________________

  10. Add Oxygen: What does this do to the polarity of the molecule???? Add Halogens: Add Nitrogen:

  11. Rank the following from lowest to highest melting point Which one(s) will dissolve in water???

  12. Sites for Reactivity • Dble/tple bonds • C attached to _____ elements • _________ Any of these could be a site for reaction! Watch for more details on reactions to come!

  13. Homework p5 #5-8 p10 #4 (practice)& #1,2 (questions)

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