Freshman Organic Chemistry (CHEM 125)
The most prominent chemist in the generation following Lavoisier was Berzelius in Sweden. Together with Gay-Lussac in Paris and Davy in London, he discovered new elements, and improved atomic weights and combustion analysis for organic compounds. Invention of electrolysis led not only to new elements but also to the theory of dualism, with elements being held together by electrostatic attraction. Wöhler's report on the synthesis of urea revealed isomerism but also persistent naiveté about treating quantitative data. In their collaborative investigation of oil of bitter almonds Wöhler and Liebig extended dualism to organic chemistry via the radical theory.
00:00 - Chapter 1. Confusion over Silicon Chloride: Discussion on Atomic Weights and Equivalents
06:06 - Chapter 2. Combustion Analysis and the Beginnings of Electrolysis
15:56 - Chapter 3. Dualism: An Organizing Principle
23:07 - Chapter 4. The Honest Experimenter and the Persistent Naivety on Quantitative Data
29:18 - Chapter 5. Ammonium Cyanate, Urea, and the Idea of Isomerism
38:31 - Chapter 6. Wohler, Liebig, and Transmission of Dualism via the Radical Theory
Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses
This course was recorded in Fall 2008.
Tagged under: Electrolysis,-bulb apparatus,Dualism,Potassium chlorate,Urea,Wöhler,Dr. Prout
Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.
Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip
Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans
1. Students enter a simple code
2. You play the video
3. The students comment
4. You review and reflect
* Whiteboard required for teacher-paced activities
With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.
Carry out a quickfire formative assessment to see what the whole class is thinking
Create interactive presentations to spark creativity in class
Student teams can create and share collaborative presentations from linked devices
Turn any public video into a live chat with questions and quizzes