Recent Tutoring Session Reviews
"Today we covered unsaturations and related problems, Fischer projections, converting from sawhorse to Fischer, comparing enantiomers on a Fischer projection, R/S, chiral centers, and mirror planes of reflection."
"Today we went over homework material discussing stereochemistry. We discussed IUPAC naming of cis/trans, naming of cyclic compounds, and interpreting Newman Projections. The student was able to grasp concepts discussed, and we began the foundation to discussing Test 2 material over our next sessions."
"Today, the student and I studied the products of Sn2, Sn1, E2, and E1 reactions looking at conditions that help to facilitate both. We analyzed the thermodynamic and kinetic products when appropriate, and talked more in depth about base strength. Throughout the session, we worked through a specific worksheet handed out as part of her organic chemistry class. She is an excellent student who will excel."
"Today, we did some review for his test at the beginning of the session. Then, we spent some time discussing Mass spectroscopy and drawing Newman Projections for molecules (both of which will be on the test)."
"We continued going over free radical chlorination, this time successively replacing the hydrogen atoms on a methane molecule to highlight the fact that the propagation steps are the same each time. We then went over reactivity vs. selectivity: chlorine being more reactive than bromine; therefore, less selective. This was followed by an explanation of transition states and energy diagrams and their relationship to rate equations and reaction rates. We covered the principle that the transition state will more closely resemble the entity closer to it in energy and that the rate determining step (the slowest step) will have the largest activation energy."
"We covered bonding, the octet rule, Lewis structures, molecular and atomic geometry, and briefly, nomenclature. She was struggling most with the octet rule, so we spent quite a while drawing molecules, and I believe she got a better understanding. She is definitely committed to studying and mastering the concepts, so I don't think she'll have a problem. I explained that when figuring out the configuration of a molecule, the two most important factors to consider are the octet rule and any relevant ionic charges. We also covered the methods of assigning charges--how an atom with a lone pair can hold a charge better than one without, and also how periodic trends (e.g. electronegativity) will determine which atom holds what charge. We also went over geometry, which she understood a little better. Additionally, we touched briefly on nomenclature, but she did not have any questions and our session was almost over, so I left that for next week. All told, I think we had a good first session."