Chemistry Demonstration Class
This week and last week we've been
taught by our teacher Mr. Popoff, all about crystallization, saturated
solutions, unsaturated solutions,Henry law and many more i’ll soon be
defining and describing. Last week we were asked to bring a Coca Cola® can to
class, we were not told why, we were just asked to bring them. This Monday we had our Chemistry class, the class was basically like a demonstration on what crystallization really is, crystallization is the formation of solid crystals precipitating from a
solution,melt or more rarely deposited directly from a gas. In our latest
chemistry class we had Laboratory project that taught us how to make
crystallization happen with destilated water and ammonium chloride, basically
this was done in a test tube with certain amount of ammonium chloride,
destilated water in it, heat bathed on a beaker full of water.
We also were explained on what a
solution equilibrium is, which is when the concentration of the solute is the
same throughout a system. We also were demonstrated physically what a saturated
and an unsaturated solution looks like;
Saturated solution are solutions which the maximum amount of solvent have been
dissolved. Any more solute added will sit as crystals on the bottom of the test
tube or container, and unsaturated solution are solutions in which the solute
concentration is lower than its equilibrium solubility. We were also cleverly
explained what a Super saturated solution is, its basically a solution where
there are more particles or solutes than solvent in a solution.
The coke experiment was actually really
cool. We had about seven or less coke cans, ones were room temperature and ones
were icy cold, we were trying to see which one of those based on their
temperature, would burst more, it turned out to be the icy cold cans.
