Khan Academy
Khan Academy: Definition of P H
An introduction to pH and the pH scale. See examples of calculating pH of pure water, bleach, and orange juice. [11:38]
Khan Academy
Khan Academy: P H, P Oh of Strong Acids and Bases
This tutorial demonstrates deriving the relationship between pKw, pH, and pOH. Calculating the pH or pOH of strong acids and bases. [14:49]
Khan Academy
Khan Academy: Strong Acids and Strong Bases
See some common strong acids and strong bases. Also examine some examples of calculating the pH of a nitric acid solution, sodium hydroxide solution, and a calcium hydroxide solution. [12:32]
Khan Academy
Khan Academy: Bronsted Lowry Definition of Acids and Bases
See the Bronsted-Lowry definition of acids and bases explained, and learn how to conjugate acids and bases. [8:57]
Crash Course
Crash Course A&p #32: Respiratory System, Part 2
Can a paper bag really help you when you are hyperventilating? It turns out that it can. In part 2 of our look at your respiratory system Hank explains how your blood cells exchange oxygen and CO2 to maintain homeostasis. We'll dive into...