Chemistry 121

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Chemistry 121

• Week 10 VB Theory,
• Equilibrium

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Linear sp hybridization
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Linear sp hybridization
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Trigonal planar sp2 hybridization
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Tetrahedral sp3 hybridization
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Tetrahedral sp3 hybridization
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Trigonal bipyrimidal sp3d hybridization
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Octahedral sp3d2 hybridization
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sp2
sp3
sp
sp3d
sp3d2
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Hybridization

• http//www.mhhe.com/physsci/chemistry/essentialche
  mistry/flash/hybrv18.swf

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Check-in

• Indicate the hybridization of each of the labeled
  atoms

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Check-in

• The double bond in O2 and the triple bond between
  two carbons have almost the same bond length, 121
  and 120 pm, respectively.
• If bond lengths get shorter as bond order
  increases, why is the double bond between oxygen
  atoms the same length as the triple bond between
  carbon atoms?
• The question above states that a triple bond can
  exist between two carbon atoms.  What comprises a
  "triple bond" between two carbon atoms?  
• Can two carbon atoms share four bonds?  Why or
  why not?

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Paper wad equilibrium
Pwad (left) ? Pwad (right)
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Paper wad equilibrium
Pwad (left) ? Pwad (right)
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Paper wad equilibrium
Pwad (left) ? Pwad (right)
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Paper wad equilibrium
Pwad (left) ? Pwad (right)
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Paper wad equilibrium
Pwad (right) ? Pwad (left)
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Check-in

• H2 (g) Cl2 (g) ? 2 HCl (g)
• (a) When this reaction has reached equilibrium,
  no further reaction occurs.
• (b) When equilibrium is established, the number
  of moles of reactants equals the number of moles
  of products for this reaction.
• (c) The concentration of each substance in the
  system will be constant at equilibrium.