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 ...

Protective clothing and gloves suggested Caution: hot liquids Do not eat or drink any of the materials used in this activity Thoroughly wash hands after this activity Gloves Disposal: Neutralize all ...

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 ...

An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

Since 1984, the EPA has developed its own methods and acceptance criteria to regularly monitor organic pollutants within wastewater matrices. The revised version of EPA Method 625 includes the basic, ...

SOLUBLE collagen can be extracted from collagenous material with neutral salt solutions and weak acids. These extracts display many similar physical and chemical characteristics, but differ ...