Solubility is defined as the maximum amount of solute that dissolves in a given amount of solvent. In this lecture the solubility is defined. Then several factors that affect the solubility (structure of solute/solvent, temperature, pressure, gravity) are discussed in good detail. The effect of structure and solubility is described for several types of solutions (solid/liquid, liquid/liquid, gas/liquid, solid/gas, gas/gas, solid/solid) and the role of energy and entropy in each is mentioned. The effect of temperature is described for solids dissolving in water and for gases dissolving in water. The role that entropy of solution and the enthalpy of solution plays in temperature effects is also discussed. Finally the effect of pressure on the solubility of a gas is described, and Henry's Law is stated. The effect of gravity and solubility is briefly mentioned.

The introduction is filmed on location at Shark's Cove on the north shore of O'ahu. Large (warning level) surf is pounding the north shore on this day. Very dangerous swimming and surfing conditions.

General Chemistry II - Lecture 9 - Solubility of a Solute

These videos are being made because I love teaching general chemistry. Also, I want to provide clear videos that are captioned for the deaf and hard-of-hearing, as well as for international students who use English as a second language (ESL). These video lectures are being used to assess such students as well as hearing students. However, any student of general chemistry should find the lectures very useful. Clear and concise explanations, colorful notes, and simple diagrams are used. All videos are uploaded under the Creative Commons license, so please feel free to use them in any way you.

These videos are hard work on my part, and I enjoy making them. If you continue to watch, then you will not only learn chemistry, but also some interesting things about the state of Hawai'i. Each video normally begins with a short clip taken on location, from somewhere in the Hawaiian Islands. And if you are on the island of O'ahu or happen to visit, then please feel free to stop by Leeward Community College say hello.
Enjoy and Aloha !!!

JAT

Jeffrey A Tibbitt, Ph.D
Lecturer of Chemistry
Office PS-206, (808) 455-0264
jtibbitt@hawaii.edu
Leeward Community College
Pearl City, Hawai'i

1. Introduction
2. Review Of General Chemistry 1
3. Intermolecular Forces And Phases Of Matter
4. Phase Change Calculations
5. Phase Changes I - Vapor Pressure
6. Phase Changes II - Phase Diagrams
7. Crystal Lattices of Solid Structures
8. Solution Concentrations
9. Solution Formation
10. Solubility of a Solute
11. The Colligative Properties Of Solutions
12. The Rate Of A Chemical Reaction
13. The Differential Rate Law
14. The Integrated Rate Law
15. Rate, Temperature And The Arrhenius Equation

This collection of 15 lectures with Prof. Tibbitt a community college in Hawaii takes you through all the fundamentals of general chemistry covered in college. His lectures are presented in a blackboard, with colorful and beautiful calligraphy.