This lab includes a theoretical explanation of how buffers work and how they are made, including a derivation of the Henderson-Hasselbalch equation. Students will use what they have learned to ...

New method turns toxic acid mine drainage into ferric chloride for drinking water treatment, offering a sustainable solution.

Sodium hydroxide is added to a cylinder of aluminum nitrate, precipitating out aluminum hydroxide. When additional base is added, the precipitate dissolves. The reactions can then be reversed with the ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

A well-established technique, acid-base titration is an analytical method used to determine the concentration of an unknown acid or base. In practice, it involves adding a solution of known strength ...

Carbon dioxide reacts with water to produce carbonic acid. The double arrow means that carbonic acid breaks down pretty readily to form carbon dioxide and water again. A hydrogen atom from the ...

Acid mine drainage project manager Craig Hasenjager tells Mining Weekly Online's Martin Creamer that gypsum can be recovered in new long term government plans. Video and editing: Darlene Creamer.

The equilibrium constant for this reaction, referred to as the acid dissociation constant, K a, is expressed in Equation 2.