Exam grades:

21-30; 1

31-40; 2

41-50; 3

50-60;6

61-706

71-802

81-90; 6

91-100;1

Chapter 8: Alkynes

1. Bonding
   • -C=-C-
   • sp hybridized;
     • one sp
     • two pi

Acidity

• HA <-> H+ + A-
• Ka = ([H+][A-])/[HA]
  • pKa = -log Ka

• acetylene is a *very* weak acid; Ka = 10^-25

Synthesis

• Use multi-step reactions to make desired products
• Work backwards
• Look for what C-C bonds need to be made/broken