Category Archives: Post-lecture

Ring Flipping Apps & YouTube Videos

Understanding what molecules look like, how they move, what relationships exist between atoms, are all challenging mental tasks. Here are two tools that might help.

Posted in Post-lecture | Comments Off on Ring Flipping Apps & YouTube Videos

Molecular Model Kits – Is NOW the time?

The Day 3 materials offered a small taste of where we are headed next: the 3-D world of molecules. Carbon is tetrahedral. Does this wedge-dashed diagram make sense? Can you rotate it in your head (rotate around any bond or … finish reading Molecular Model Kits – Is NOW the time?

Posted in Exams, Post-lecture | Comments Off on Molecular Model Kits – Is NOW the time?

Making Sense of Electrons, Atoms, and Molecules

The discovery of the electron in 1897 was followed just 14 years later by the discovery of the atomic nucleus in 1911. In 1913 Bohr proposed a model of the hydrogen atom in which the electron made perfectly circular orbits … finish reading Making Sense of Electrons, Atoms, and Molecules

Posted in Post-lecture | Comments Off on Making Sense of Electrons, Atoms, and Molecules

Elemental Haiku

Carbon, C Show-stealing diva, throw yourself at anyone, decked out in diamonds. And that pretty much sums it up. Carbon is awesome. Interested in seeing how the other elements fare when filtered through haiku paper? Check out Elemental Haiku (Science, 4 … finish reading Elemental Haiku

Posted in Post-lecture | Comments Off on Elemental Haiku

Protecting Your Eyes During Next Week’s Eclipse and Beyond

What’s so special about the sunlight during an eclipse? Isn’t it the same old sunlight we see the rest of the time? Yes, it is, but because the event is so interesting to look at, and because the normally blinding solar … finish reading Protecting Your Eyes During Next Week’s Eclipse and Beyond

Posted in Post-lecture | Comments Off on Protecting Your Eyes During Next Week’s Eclipse and Beyond

SN2 Reaction Animation

Predicting the outcome of an “opposite side attack” SN2 reaction can be confusing at first, but animations can help. Check out the SN2 animation at chemtube3D.com. To operate the animation, find the drawing of the chemical reaction and click on … finish reading SN2 Reaction Animation

Posted in Post-lecture | Comments Off on SN2 Reaction Animation

Vaux Swift Watch 2016

This post has nothing to do with o chem, but you have a long weekend ahead of you and I don’t want you miss something really special: the swarming and roosting of 5000+ small Vaux swifts in the Chapman School … finish reading Vaux Swift Watch 2016

Posted in Post-lecture, Study habits & Distractions | Comments Off on Vaux Swift Watch 2016

Combination Coupling in Salicylic Acid 1H NMR

The reading of Exp’t 4 (salicylic acid) lab reports informed me that many 201 students struggled with the complexities of the proton NMR spectrum. The NMR of salicylic acid is complicated, no doubt about it, but it can be understood … finish reading Combination Coupling in Salicylic Acid 1H NMR

Posted in Labs, Post-lecture | Comments Off on Combination Coupling in Salicylic Acid 1H NMR

Optical Activity of Sucrose: Laptop + Sunglasses

The web is loaded with videos explaining optical activity and demonstrating polarimeters of various types (see Sorrell, Fig. 4.3, p. 114). Here are two SHORT clever videos from David Whyte (and his cheeky daughter?): Home made polarimeter by David Whyte. (https://youtu.be/HP14LAEy9BY) … finish reading Optical Activity of Sucrose: Laptop + Sunglasses

Posted in Post-lecture | Comments Off on Optical Activity of Sucrose: Laptop + Sunglasses

Dogs Teaching Chemistry

Some of you may be planning a review of Chem 201 concepts before you take up the new challenges of Chem 202. Here are two short videos that review atomic structure and chemical bonding (note: this material is being taught … finish reading Dogs Teaching Chemistry

Posted in Post-lecture | Comments Off on Dogs Teaching Chemistry