Course: General Chemistry I: Atoms, Molecules, and Bonding
Length: 15 weeks, 10-12 hrs/wk
Instructor: Sylvia Ceyer, Mei Hong, Patti Christie, Alisa Krishtal
Quote:This course is designed to build core skills in chemistry, including drawing chemical structures and predicting molecular properties and reactivities, as well as to gain the necessary fundamental knowledge for advanced courses….
This chemistry course is the first in a series of two courses that together cover first-year, University-level chemistry. In this course, you will uncover the principles of chemical bonding, in the way it historically occurred: starting from the first experiments that revealed the fundamental dual wave-particle nature of energy and matter.
Short version: a great, if challenging, way to get back into chemistry.
Here’s the problem with chemistry as a subject: It sounds really cool. We all remember the baking soda volcanos from elementary school, and a lot of us would like to know just what all those ingredients in our shampoo are doing there. Not to mention fireworks and medicines and all kinds of other interesting stuff. But when you come to chemistry class, you get… math. Icky math. Equations with symbols you’ve never seen before, not to mention really complicated radicals and exponents. And sigfigs. Chemistry is obsessed with sigfigs.
But that’s what’s required. Here, the mathy stuff – about half the course – was handled very smoothly, with gradual introductions of more and more complicated elements and recitations (thank Zeus for those recitations) that went step by step through problems to make sure you’ve got it straight. It’s all about energy, speed, distances, and the *#@% Ideal Gas Law, all of which are quantitative. They deliberately avoided requiring calculus, so it’s only algebra; it’s just nasty. But that’s why God made Wolfram Alpha. It’s hard, and there are some aspects I think I need to go over again, but it’s not out of reach. Prof. Ceyer’s simple-to-complex approach was perfect for me; as time went on, I became more and more appreciative of her, and by the end of the class, I adored her.
I had more trouble with the qualitative material — types of bonds, orbitals, periodic table trends — much to my surprise. I think part of that was Prof. Hong’s more off-the-cuff lecture style, though I suspect more advanced students would be perfectly fine with it. However, the material is pretty standard and is easily available on Youtube, plus I’d covered most of it in earlier moocs, so it was manageable. If the instructors had been reversed – if Prof. Hong had handled the math and Prof. Ceyer the bonds – I would’ve been sunk.
A Module 0 containing basics of high school science and chemistry was provided; I spent way too much time on that, and so was behind for most of the course. In retrospect, I probably could have skipped the review entirely, but there was no way to know that in advance.
The course page lists this as an Intermediate course. In spite of the Module 0 material, unless you were really good in high school chemistry, it’s probably not the place to start. But for that, there are other options, like the University of Kentucky chem mooc I took (twice) several years ago. Now that I think about it, I never did take the second part of that mooc; maybe I should, because MIT will be releasing a second part to this course sometime this year. I’m looking forward to it, but I’d like to be prepared. And I’m still hoping they’ll come up with an orgo course one of these years.