AP Chem Study Guide

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AP Chem Study Guide
2012-12-04 01:15:49
AP Chem Study Guide Chapter 10

Chapter 10
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  1. What are intramolecular forces?
    • -Ionic / Covalent Bonds
    • -The bond holding the atoms together
  2. What are intermolecular forces?
    -Forces between molecules
  3. What  are the strong / weak intermolecular forces?
    • Strong: (Intra)
    • -covalent
    • -ionic
    • Weak (Inter)
    • -dipole dipole
    • -london dispersion
  4. What are key aspects of hydrogen bonding?
    • Only with F, O, N
    • -three because of high electronegetivity
    • -small enough to get close
    • -especially strong dipole-dipole forces
    • -affects boiling point
  5. What are some key aspects about london dispersion forces?
    • -non-polar molecules that exert forces Br2
    • -weak
    • -bigger molecule higher melting point
  6. What does more electrons mean?
    More polarizable!!!!!!!!!!!!!!!!
  7. Describe some thoughts about boiling point?
    • -LD forces weak
    • -ionic is super strong to break apart
  8. What are the properties of liqueds due to? (compared to gas, forces,enviroment)
    • Internal attraction¬†(intermolecular forces)
    • -surface tension, meniscus
    • -stronger intermolecular forces cause each of these to increase
    • -high disorder, fewer holes than gas
  9. The phase of a liqued is determined by what?
    • -Temperature (heat on ice)
    • -Pressure
    • -Strength in Intermolecular forces
  10. What are the two major types of solids?
    • Crystalline: salt, locked in some kind of lattice
    • Amorphus: much disorder, frozen in place (glass, plastic)
  11. How do metals bond?
    Electron Sea model: a regular array of metals in a "sea" of electrons
  12. What kind of solid would Silicon and Carbon be part of?
    • Covalent Network
    • -brittle
    • -sp3 diamond stronger than ionic bond (tetrahedral)
  13. What are some aspects of molecular solids?
    • -strength depend on size -> larger molecules are mor polarizeable
    • -intermolecular forces weaker than bonds
    • -stronger forces = higher melting melting and freezing points
  14. What are some aspects of Ionic solids?
    • -huge melting and boiling points
    • -salts, brittle
    • -easily brocken
    • -not good conductors
  15. What type of solid will each substance form?
    • -covalent network
    • -molecular
    • -atomic
    • -metallic
    • -ionic
  16. What is vapor pressure?
    The pressure above a liqued at equilibrium
  17. What is vaporization? (high vapor pressure name)
    • Liqued to a gas at boiling point.
    • -high vaporization = volatile
  18. What is evaporation?
    • The change of liqued to gas below the boiling point.
    • -endothermic
    • -energy over comes intermolecular forces
  19. What is heat of vaportization?
    Energy required to vaporize 1 mole at 1 atm.
  20. Vapor Pressure inc / dec?
    • Inc.- with temperature
    • Dec.- with intermolecular forces (big molecules = more polarizable, better holding power on molecules)
    • -polar = inc in temp
  21. What is condensing?
    Gas to Liqued
  22. Boiling Point
    • Liqued to gas
    • -1 atm pressure
  23. Critical temp
    Critical Pressure
    Critical Point
    • -vapor cannot be liquefied
    • -at critical temp
    • -critical temp / pressure
  24. Supplemation
    Solid to Gas
  25. Deposition
    Gas to Solid