January 22, 2007

Science 8

• Finish Collapsing Can Demo worksheet for Wednesday January 24
• Read all of Chapter 7 to begin studying for your Unit Test
• Bring a calculator to class!

Chemistry 12

• Do Hebden Unit V: #15-19
• Study for your Mid Year Exam on Wednesday January 24
• Corrections: #5 - B, #20 - D, #31 - B
  

Here is the outline to your test on Wednesday

• 26 M/C questions
• 1st 8 questions Unit 1, 2nd 10 questions Unit 2, last 8 questions Unit 3
• 4 written questions, 1st 2 from Unit 1, 1 question from Unit 2, and last question from Unit 3
  

Chemistry 12 – Mid Year Review Exam concepts

Reaction Kinetics

• Interpret, draw, and label PE vs. time graphs
• Explain how the following factors affect the rate of a reaction: temperature, pressure, concentration, surface area, phase, catalysts, and inhibitors
• Understand how Collision Theory explains what factors affect reaction rate
• Be able to look at a reaction mechanism and identify the reaction intermediate, catalyst, and the rate determining step
• Understand how activation energy of a reaction relates to the rate of a reaction
• Understand what an activated complex is

Dynamic Equilibrium

• Be able to understand how increasing/decreasing the following factors will (a) shift an equilibrium and (b) affect the forward and reverse reaction rates
• Temperature
• Pressure of a container
• Volume of a container
• Concentration
• Determine whether enthalpy and entropy favour reactants or products
• Write a Keq expression and perform equilibrium calculations with or without an ICE table
• Determine whether product or reactants are favoured by interpreting Keq
• Predict which way an equilibrium will shift by calculating trial Keq

Solubility Equilibria

• Write a Ksp expression
• Calculate the solubility of a salt
• Predict shifts in equilibrium based on a common ion added
• Calculate the concentration of ions in a solution
• Calculate the maximum/minimum concentration of ions in a saturated solution
• Predict the effect on solubility when ____________ is added to a solution
• Predict whether a precipitate will form and justify using calculations