Monday, March 29, 2010  Learning Goal – to interpret an energy diagram  Turn in LeChatelier Lab  Energy Diagram Questions  Questions over ICE Problems  Homework

How was your break?  Turn in your LeChatelier Labs from before break (some turned them in on Friday)  Copy down the following vocab terms into your notes:  Activation Energy – the amount of energy needed to initiate a chemical reaction  Catalyst – lowers the activation energy to speed up a reaction

Energy Diagram  Copy this down into your notes – there will be a graph similar to this on the test! (a) = Activation Energy of forward reaction (b) = Activation Energy of the reverse reaction (c) = Energy (Heat) of the forward reaction 1.How would a catalyst change the reaction? 2.Is this endothermic or exothermic? Why?

Now you try it! Get into your assigned groups and label the following on this graph 1 Reactants 2 Products 3 Activation Energy of Forward Reaction 4 Activation Energy of the Reverse Reaction 5 Energy (Heat) of the forward reaction 6. Energy (Heat) of the reverse reaction 7. What does the red line represent?

 Take out the Equilibrium Problems Packet  Do you have questions over the ICE problems?  If you were absent Friday, write down (or print off) the ICE notes on the webpage

Reminders  Take lab notebook to lab this week, but you will complete the entire write-up with your group during lab  There is a Moodle lab quiz for the “Something to Zn About” lab  Ch 19 TEST – Friday!

Homework  Equilibrium and ICE worksheet – due Wed  Page 3 of packet (This is a combination of Equilibrium problems and ICE problems)  Take the LeChatelier Lab Quiz on Moodle  Closes Mon (3.29) at 11:30pm!  EXTRA CREDIT on Moodle – due Wed by 11pm  Ch 19 Review – due Friday  Ch 19 TEST - Friday