chemistry experiments


Low-pressure extraction of alkaloids from oxidized Coffea arabica seeds with an emulsified colloid of liquid butterfat globules dispersed within a water-based solution. Very successful experiment. I hope I can replicate this.



First trial of an experiment for Honors Biology. Students develop a standard curve of changes in mass of uncooked potato slices in response to various concentrations of solute (either salt or sugar). A little surprising that the change leveled off so much on the upper end of the salt concentration series. Any thoughts out there?

All in all a fun and easy experiment.

2 thoughts on “chemistry experiments

    • Mad Chemistry Major/amateur cook skills!!!

      Err…actually they were not identical. I made roughly 0.5 cm slices and weighed them before and after. I thought they were probably close enough for a preliminary run (pretty much in the 15 to 20 g range).

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s