Polar and Non-Polar Solvents Lab

Objective of this lab: to determine if Glycerin is Polar or Non-Polar

We set up 6 clean, dry test tubes and divided them into 3 sets. 3 test tubes were half filled with water and the other 3 were filled with paint thinner. The first 3 tubes with water, we added table salt, sugar and iodine to each one. All dissolved in each of the solvents. We then added the same 3 substances in each of the test tubes filled with paint thinner. Non of the substances dissolved in the paint thinner. The iodine turned the paint thinner a magenta colour. At the end of the lab we combined water, glycerin and the paint thinner into one tube. It didnt dissolve and the glycerin and paint thinner stayed at the top, creating a jelly look. (like the picture below)

                                       (water, paint thinner and glycerin combined in one test tube)



Janine R