Molecular Shape Lab

Title:

* Molecular shape Lab

Statement of the Problem:

* What each lewis structure was, what was the angle of each structure. What was the actual Geometrical shape, Weather it was polar and weather it was resonance structure.

* I knew what was on the paper Mr.Howell handed out on the geometric shape and angle, and how lewis structures were done.

Hypothesis:

* We thought that the lab would explain how each molecule is shaped and angled.

* Either it will teach us a lot about the subject, or it might just be a complete review over the past chapter (chapter 6)

* Through out the lab we will test to see if it is a review or a lesson.

Materials:

* Bag of attachable pieces, apron, safety goggles, lab paper, and work area.

* Don't eat the pieces!

Procedure:

* First we obtained the lab outline and began on it. For each molecular formula, we were to make a lewis structure, Diagram the lewis structure using the bag of pieces and the color key to create the molecular shape, determine the angle of the lewis structure, the polarity or non polarity of each molecule, and weather the lewis structure is a resonance structure or not.

*Then we began doing all the molecular formula's on the paper while diagramming the lewis structure.

*After we finished those we used the sheet that the teacher gave us to determine the angle of the bonds and the actual geometric shape.

*Finally we looked through the book to find the polarity and weather it was a resonance structure or not.

Results (Data):

1.H20

2.C3H8

3.CH4

4.BF3

5.C2H4

6.CH3NH2

7.CO2

8.C2H2

Conclusions:

* We found that this was a review of what we had been learning in the past chapter.

* We accepted this hypothesis because we knew how to do all the stuff on the lab and did not learn very much new stuff.

*The only possible problem that could have happened in this lab would have been that the lewis structures were done wrong and that is very unlikely.