Solutions

Colour Changes with Caffeine - Part 2

This study outlines the effect on the colour of anthocyanin-containing solutions when mixed with caffeine. Given the diversity of anthocyanin structures available from other vegetables, fruits or flowers, there is great potential for series of open-ended experiments for students in classes or science clubs to investigate.

Colour Changes with Caffeine

This initial study outlines the effect on the colour of anthocyanin-containing solutions when mixed with caffeine. Given the diversity of anthocyanin structures available from other vegetables, fruits or flowers, there is great potential for series of open-ended experiments for students in classes or science clubs to investigate.

The Salting-Out Effect: A Colorful Demonstration That Leads to Student - Teacher Activities

Have you seen the "salting-out effect"? This interesting demonstration shows a separation of two layers in a solution of water and an organic solvent by adding an ionic salt. Although this concept has important applications in organic chemistry and biochemistry, it can also be visually stunning and engaging for audiences. Read on to learn how to incorporate this demonstration into your chemistry lessons.

Solutions with Kristen Vanderveen

Solutions are all around us in life and chemistry class! On February 10th, 2022, Kristen Vanderveen discussed solubility curves, molarity calculations, using particulate level modeling and simulations, making real world connections and so much more in this ChemBasics Talk. View a recording of her presentation and access materials she has suggested here.

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.