Pre-Trainint+Activity

The Pre-Training Activity is based on the "Separating Mixtures" Lab Video shown on the home page. home

You should view the demo and compare it to your own results.

Many of you have started the new course and do not have the same chromatography kits referred to in this lab video.

You will be using water and alcohol and making a mark with a green marker or some similar dye marking instrument.

The basic method of separating the pigments using paper chromatography is the same.

Did the pigments separate as the water or alcohol spread up the paper?

What colors did they separate into?

Why do the pigments separate?

These three questions should be on your mind while viewing the demo as well as comparing the techniques that are used in the demo to those you use yourself.

The same procedures should be used for all the other video demos.

Questions can then be answered directly onto the comments section of the blog; bgoldstein29.blogspot.com or onto your online or printed course replies with your assignment submissions.