Author Archives: alan

Preparing for Chem 201 – Summer Study Suggestions

Several students have asked me in the last few years, “What can I do this summer to get ready for Chem 201 next fall?” A perfectly reasonable question, and one that deserves an instructive response. But I hesitate to answer. … finish reading Preparing for Chem 201 – Summer Study Suggestions

Posted in Study habits & Distractions | Comments Off on Preparing for Chem 201 – Summer Study Suggestions

Summer Suggestion #1. Review key topics from Chem 101/102

The first 5 or 6 weeks of Chem 201 races through a lot of material you covered in Chem 101/102. In particular, we discuss, how molecules are held together (101/102 – atomic structure, electrons, bonds, orbitals) how to draw and … finish reading Summer Suggestion #1. Review key topics from Chem 101/102

Posted in Uncategorized | Comments Off on Summer Suggestion #1. Review key topics from Chem 101/102

Summer Suggestion #3 – Study Organic Chemistry

Organic chemistry is, despite what you may have heard, pretty much the same everywhere, whether MIT or Portland Community College. The courses that science majors and pre-meds take are 2 semesters (3 quarters) long and rely on a commercially produced … finish reading Summer Suggestion #3 – Study Organic Chemistry

Posted in Uncategorized | Comments Off on Summer Suggestion #3 – Study Organic Chemistry

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

Where do I put my CH3 groups in a condensed formula?

I’ve been getting a lot of office visits and emails over the same homework problem. Folks say, “I typed CH3CH2CH(CH3)CH(CH3)CH3” or “I typed CH3(CH3)CHCH…” or “I typed CH3CH(CH3)CH…” and it was marked incorrect. =(

Posted in Homework | Comments Off on Where do I put my CH3 groups in a condensed formula?

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?

Day 0 – the things you need to do BEFORE your first class

Welcome back to Reed. We have an exciting organic chemistry curriculum planned for Chem 201 and 202, and we will get off to a flying start so here goes… Day 1 is our first day of classes. It will include … finish reading Day 0 – the things you need to do BEFORE your first class

Posted in Class schedule, Exams, Homework, Labs | Comments Off on Day 0 – the things you need to do BEFORE your first class

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