October 15, 2010

* Today in class we first took quite a bit of notes, then we got a review sheet to complete and last but not least we started working on our lab that we will do next class (Tuesday).

* I will first sum up the notes that we took:

- We were introduced to Separation Techniques. There are many basic techniques that include: Filtration, Floatation, Crystallization & Extraction, Pistillation, Chromatography, Hand Separation & Evaporation, Gravity Separation, Solvent Extraction, and Distillation. Here are some pictures & diagrams to explain all of them in a simple way;

  Distillation (left and underneath)                          Floatation (right and underneath)

 

Filtration (left and underneath)  Crystallization & Extraction (right and underneath)

Pistillation (left and underneath)                     Chromatography (right and underneath)

 Solvent Extraction (left and underneath)                  Evaporation (right and underneath)

 

* Those pictures/diagrams should help you alot along with the notes that u already have. Now here are three videos that also go along with seperation techniques so now unfortunately you will have no excuse to not knowing the material:
1. http://www.youtube.com/watch?v=7VrOQg6kFow
2. http://www.youtube.com/watch?v=QEex788j-yk
3. http://www.youtube.com/watch?v=vcwfhDhLiQU&feature=related

* Now secondly, a reminder that you will have to finish the review sheet by next class (Tuesday) both sides but skip #7 !!!!

* Thirdly, next class we are doing a lab; expirement 3B - seperation of a mixture by paper chromatography. Remember to bring your lab textbook and to create and bring a flowchart of the procedure of the lab. And there are three tables to copy from the lab. Here is an example of what the flowchart should look like:     

                            

                                                   

* Thank You and I Hope You Had A Great Weekend!!!!