solutions

Solubility, Stoichiometry and Non-stoichiometry

The unspoken word of chemistry: Non-stoichiometric. Stoichiometry and non-stoichiometry are concepts that combine to make a solution that does not have to be difficult to understand.

Soda Fountains from Aluminum Cans

The familiar soda fountains that can be produced by adding Mentos candies to plastic bottles of carbonated beverages can also be produced by adding objects to carbonated beverages in aluminum cans. A variety of simple methods for producing soda fountains from cans are described.

Icy Brinicle of Death: A COOL Example of Freezing Point Depression

What real world examples are made known to students when discussing freezing point depression? What about brinicles, also known as "Icy Fingers of Death"? A brinicle (from brine + ice) is a finger-like formation of supercooled brine solution that grows downward underneath sea ice. Intrigued? Cool (pun intended). Keep reading to find out more!