Making Lewis Structures using models pieces to figure out the shape and the polarity of combinations of molecules.


Materials
Modeling pieces
Periodic Table


Procedure
Grab the right piece that corresponds with the molecules and put the correct amount of bonds to it and all the other molecules. Draw a three dimensional picture of the elements.























































































































Conclusion
This lab was very informative.

Paper Chromatography Lab

Paper Chromatography Lab
In this lab the use of chromatography paper and different solvents to test the retention time of the solvents.

The retention time of each solvents
Tested to see which of them had a better retention time to disperse the independent pigments
The solvents were tested to see which had a better retention time and how far to disperse the pigments up the chromatography paper
Test which color had which pigments mixed in the mixture or if it was a compound

Hypothesis
our hypothesis is that the h2o will be the best of the different fluids to be used in this experiment.

Materials
-Chromatography paper strips
-Water
-Methanol
-Isopropanol
-Hexane
-Different colors of overhead pens one of which is black
-Well plate
-Make sure to wear safety equipment including aprons and safety goggles at all times

We made three black dots on 4 chromatography strips in a line along the narrow part on one end of the strip. Then we filled a well plate for each substance half the way full. We put a crease in the chromatography in the end with the dots and put one in each well and recorded the retention time each substance took to separate the color and how far the the pigments were separated.
Then we took the best solvent and put three dots on each chromatography with different colors. And recorded the results.

Results
The water worked the best. Methanol was second best and then Hexane , and Isopropyl did work at all. Since water has hydrogen in it, it has the strongest bond making it capable of pulling the pigments farther.