Equilibrium Day 2

Greetings,

From today you should be able to
(1) given an llbm equation, write an llbm expression
              (K=[products]/[reactants])
(2) Given an llbm equn and its K value, determine the value of K for a manipulated equn (see manipulating K handout on moodle - if it is not there yet, it will be there soon)
(3) Write an llbm expression given an llbm equn that includes solids - don't include pure solids in the llbm expression
(4) Solve for K given an llbm equation and llbm concentrations

From today: Hmwrk:
p442 (1)   p444(2,3,4)   p445(5, 6)   p447(7bc) -read the example above the questions! and finally -  p449(3,4,6) -info given about llbm equn, write K epxression, solve for unknown

Additional question: How does the size of the K value convey information about the [product] and [reactant]?    [product] ...i.e. concentration of product

For next day - prepare for llbm lab (handout available on moodle under the equilibrium section - (Qualitative llbm lab)
preparing for the lab? -read it over, set up your lab book, consult the textbook, think about how the results are going to be used? [What concept is this lab trying to cover?]

One more moodle tidbit - the llbm unit outline is on there as well

That is it for me today. Closing thought? Sometimes you are the bug, sometimes you are the windshield. Okay...that's all I have for now.

Equilibrium Introduction

Have you moodled yet? If not please sign up. In the mean time - check out the llbm intro link below.

http://www.wwnorton.com/college/chemistry/gilbert/tutorials/interface.asp?chapter=chapter_15&folder=equilibrium

From today (pp426-438) you should be able to:
-identify the attributes of dynamic llbm
     rateforward = ratereversed; concprod not necessarily equal to concreact; closed system (no matter in or out)
-write an llbm law expression given a balanced llbm equation
-determine % reaction (p432)
-build & interpret ICE charts [they're cool]
Hmwrk: page 437 (6,7) and page 438-439 (1,3,5,7,8)

Okay I am off to try and load a few things to moodle. Who knows I may be back here yet. I did intend return. It is about 1hour later. I came back to let you know that I successfully moodled. Have you moodled yet?

Appropriately: Chemist's last words • And now the tasting test... • And now shake it a bit... • In which glass was my mineral water? • Why does that stuff burn with a green flame?!? • And now the detonating gas problem. • This is a completely safe experimental setup.

Review Answers

I have tried to scan and then upload the review solutions.

I did not have the bond energies data table. The answer for the propanone question might be a bit off. The pages are out of order. I have spent enough time on this already.

Have you moodled yet?

I have completed my intended task. I hope that someone reads these puppies. It took me quite some time to get these things loaded up. Now if I could figure out symbols like 'delta' and superscripts and subscripts. [H2O just doesn't look right.]