Topics
1.  Key Ideas

2.  Equilibrium
     
3.  NO₂ <==> N₂O₄  Equilibrium. LA smog
     Dynamic Equilibrium - Isotopic substitution and N₂O₄
     Endo or Exothermic ?  Review drawing Lewis Structures, p. 69-70
     Derive (k_forward/k_reverse) from 1 step mechanism

4.  Writing Equilibrium Constant Expressions
     Activity
     The "Law of Mass Action"
     Solutions (K_c), Gas phase (K_c or K_p)
     Heterogenous systems (mix of concentrations and pressures)
     Table 9.2

5.  The magnitude of K - interpretation

Demonstrations
1.  NO₂ <==> N₂O₄   
2.  Lecture Worksheet 9-1

Readings
9.1, 9.2, 9.4

OWL Homework
9.1b Simulation: Equilibrium State
9.1c Homework: Equilibrium State
9.1d Homework: Isotopic Labeling
9.2a Simulation: Equilibrium Constant
9.2b Homework: Equilibrium Constant
9.2c Simulation: The Meaning of the Equilibrium Constant
9.2d Homework: The Significance of K
9.2e Simulation: Writing Equilibrium Expressions
9.2f Homework: Equilibrium Expression from Reaction

Lecture Topics
1.  K - continued
      Interpretation
      K Rules !

2.  The Reaction Quotient - Q

3.  The relationship between   ΔG and   ΔG⁰

4.  Relationships:  ΔG ... ΔG⁰ ... Q ... and K

Demonstrations
1.  Lecture Worksheet 9-2

Readings
9.3, 9.5

OWL Homework
9.3b Simulation: Thermodynamics and the Equilibrium Constant
9.3c Homework: Gibbs Free Energy and the Equilibrium Constant
9.6b Homework: Reaction Quotient

Have a wonderful Spring Break !!
    ....but don't forget to do some chemistry.....

Lecture Topics
1.  A few more things about the Equilibrium Constant
     Add reactions – what happens to K's ?
     Relationship between Kp and Kc for gases

2.  Relationships:  ΔG ... ΔG⁰ ... Q ... and K  continued
     Product-Favored,  Reactant-Favored ?
     Which way to equilibrium ?  Compare Q to K
     Interpret:  ΔG  and ΔG⁰.  What does each tell us ?

Demonstrations
1.  Lecture Worksheet 9-2
2.  Rope and equilibrium position
3.  Lecture Worksheet 9-3
  

Readings
9.5, 9.6, 9.7, 9.8

OWL Homework
9.4a Homework: Manipulating Equilibrium Expressions
9.4b Homework: K for Rearranged Reaction
Math: 9. Quadratic Equations
9.5e Homework: Kp and Kc
9.7a Homework: Free Energy Change and the Reaction Quotient

Lecture Topics
1.  Equilibrium Calculations - the ICE Method
     Calculate K from thermodynamic data
     Calculating K from equilibrium concentrations  
     Calculating equilibrium concentrations  

Demonstrations
1.  Lecture Worksheet 9-3
2.  Lecture Worksheet 9-4

Readings
9.8, 9.9, 9.10

OWL Homework
9.5b Homework: Equilibrium Calculations
9.5d Homework: Determining Equilibrium Concentrations

Lecture Topics
1.  Equilibrium Calculations - the ICE Method
     Solving a Quadratic Equation
     Approximation of quartic equation

2.  Disturbing an Equilibrium - Le Chatelier's Principle
     Concentration
     NH₃ Example
     Volume

Demonstrations
1.  Lecture Worksheet 9-4
2.  Doug and Pat - Disturbing Doug's Equilibrium
3.  Cobalt chloro/aquo complex
4.  Lecture Worksheet 9-5
   

Readings
9.9, 9.10, 9.11

OWL Homework
9.6c Simulation: Disturbing a Chemical Equilibrium
9.6d Homework: LeChatelier's Principle - Concentration
9.6f Simulation: Equilibria and Volume

Have a wonderful weekend
    ....but don't forget to do some chemistry.....

Lecture Topics
1.  Disturbing an Equilibrium - Le Chatelier's Principle
     Volume - continued
     Temperature  
     Cobalt chloro/aquo complex ... Endo or Exo ? 
     K v.s. T

2.  Disturbing an Equilibrium - Le Chatelier's Principle
     Summary

Demonstrations
1.  NO₂ <==> N₂O₄  Equilibrium. LA smog
2.  Cobalt chloro/aquo complex
3.  Lecture Worksheet 9-5
 

Readings
9.11

OWL Homework
9.6g Homework: LeChatelier's Principle - Volume
9.6i Homework: Effect of Temperature on Equilibrium
9.6k Homework: LeChatelier's Principle - Summary

Review Session for Exam 2 - 7 - 8:30 PM