Biodiesel Lab

Last week we got to make biodiesel! It was a pretty easy lab, we took excess fryer oil from Chick-Fil
-A and measured 135mL of it into an erlenmeyer flask, then we added 32mL of KOH to the flask. Then we took a the flask and added it to the hot water bath, and let it heat for 20 minutes while keeping the temperature between 45-55 degrees celsius. Once it had heated we took it out of the hot water bath and poured it into a plastic cup to sit overnight. The next day we filtered out the KOH to be left with just the Biodiesel.

Pouring in the KOH

Hot water bath!

Viscosity Test!

What is Biodiesel?

How to Make Biodiesel

How Biodiesel is used

Pros and Cons of Biodiesel

Diesel Fuel

Biodiesel Video

When we came back from spring break, we began our new unit, Biodiesel, and our first project was to make a video about the benefits of biodiesel and submit it to the American Lung Association for a contest. The first place winners get $1200! We haven't gotten the results yet but hopefully they like our video!


BIODIESEL VIDEO!!!

Bonding Test

I felt pretty good going into the chemical bonding test, not quite as confidant as I was about the periodic trends, but still better than I've felt about some other tests. I studied for a couple of hours the night before and found some pretty helpful links that helped me study.

Definition

Valence Electron Configuration Practice

Bond length 

Electron Dot Formula Practice

Bond energy

Bonding Practice

Notes!

Chemical Bonding Lab

Last week we went to the library and got to practice making Lewis Dot Structures and identifying the electronic geometry of molecules. It was fun because we got to use the whiteboard tables and we got to make 3D models of the molecules which was really helpful in identifying the electronic geometry and determining the differences between the different types.

Periodic Table Activity

On Tuesday we were assigned a project to determine the placements of elements on a periodic table based upon the three sets of data that we were given, density, ionization energy, and a list of a reaction of each of the elements with a metal and a non metal, respectively. We did a similar project on Monday but it only contained one set of data with clues to a specific element. The one we got on Tuesday was a bit harder, but working with my lab partner, we were able to figure most of it out and I finished the last of it on my own.

The Unit Test

Helpful studying links:


Periodic Trends Practice

Practice Calculations

Quantum Number Practice

Electron Configuration Practice

Periodic Trends video

Electron Orbitals