Henderson/Hasselbalch equation.

Henderson/Hasselbalch equation.

Chemguy calculates the pH of a buffer solution using the Henderson/Hasselbalch equation.

Solving Boyles and Charles Gas Law Problems

How to set up and solve Boyle's and Charles' Law problems, with the algebra and rounding off of answers fully explained.

The Gas Laws

This video goes through the theories of Boyle, Charles and Gay-Lussac and how the equations are arrived at.