Tuesday March 8, 2011

Today we started off class easy, we went through a reading sheet, finished our lab from a couple days ago, did some stuff in the small packet and then learned something new about HYBRIDIZATION!

Reading sheet answers.

(after the wiggly line Mr. H said the questions were unimportant and we were probably not going to talk about them again.)

1. d

2. 0,1,2

3. c, b

4. c, b

5. a,c

6. c

7. d

8. sp2, sp3, sp3, sp3d

9. sp, sp2, sp3

10. false! 2 electrons are in hybridized orbitals, four electrons are in p orbitals

11. a

12. b

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13. c

14. d

15. h

16. d

Mr. H then talked about the test on friday. We are also going to turn in our lab notebooks on friday, which inside are going to have one completed lab and not inside is a lab on a seperate piece of paper we are going to do. He then told us the usual how theres a review sheet on moodle as of tomorrow and we should use the webassign study guide to study.

After that Mr. H briefly reminded us about resinence, which is when a molecule has one double bond and one regular bond in a lewis sturcture then in reality its like a bond and a half. Its not a distinct doouble bond and single bond.

Then we opened up the little packet we got to fill in if the moleucles are polar or non polar. Mr. H used a diagram on the board which i copied and will post after this paragraph. He taught us how to figure out if the bonds are polar or non polar. We do this by a set of questions. First we figure out if the bonds polar by numbers, we use the periodic table in our packet to determine the number. If the number is in between and including .4-1.7 then its polar and we have one more question to ask. If not then were done, the molecules are not polar. The next thing we do is figure out the AXiEj notation and use that along with the list of special non polar bonds from our reading guide to make sure the bond is polar.

A little while after Mr. H introduced

hybridization. Which is pretty much a new notation for the s and p orbitals in bonds. I apologize for the bad picture quality but in the margines where we should take notes was two sections that were really important. They showed what the conversions are from AXiEj notation to hybridization notation.

After all that learning we were told about the homework. Tonights homework was a webassign, delicious due thursday, lab notebook friday and if you do the 7.3-.4 webassign today its .25% extra credit SO DO IT.