Chemistry 12:  Today I collected U2 # 36-46 as well as Lab 19B.  We took notes on Keq calculations, and did U2 # 57-50.  The answers are in blue below.  We will have an Equilibrium Unit Test next week, on Wednesday.

Chapter 2 Answers:

47.  Keq = 5.0

48.  Keq = 3.0

49. a)  Keq = 0.013

49. b)  Keq = 0.93

50.  a) Q = 0.89, so shift to Products

50.  b)  Q = 7.5  so shift to Reactants

50.  c)  Q = 4 so no shifting required

Chemistry 11:  I collected the last few Lab 4B's.  We discussed with examples how to find the empirical formula from the Percent composition, and we did U5 # 46 a,c,e j,h,k,j.  In the last 30 minutes we took notes on Molar Concentration, read U5.6, and did # 59 and 61.  All of this textbook practice is due Friday.  Expect a unit test on Moles next week, towards the end.