Recent Tutoring Session Reviews
"For this session we focused on working through practice problems consisting of hydrochlorination of alkenes and Diels Alder reactions. We spent the most time on the former because that is what the student had the most issues with. More specifically, it was difficult for her to imagine the movement of the bonds and the placement of the substituents. Towards the end I suggested a method of outlining the molecules in such a way that would make it easier for her to keep track of the atoms and newly formed bonds. By the end of the session she was much more comfortable with these types of problems and was working through them without guidance from me, although I did strongly recommend her working through more problems on her own to make sure she doesn't lose her momentum."
"We did chemistry review, IRS %s, electronegativity, orbital hybridization, a bit on anti orbitals, calculating unsaturations, a bit on pKas, and I answered a few specific questions."
"Today we covered Newman projections, chair conformations, and acid/ base strength. The student felt more comfortable with the material after our session."
"We went over Newman projections and the conversion to line angle again today. The student and I also worked on a bit of nomenclature, and concepts behind the cyclohexane ring and additional substituents. She is doing fantastic, and seems to have a good understanding of the material."
"Today we went over more resonance structures, and I gave her some tips on how to avoid mistakes when drawing them. I believe that the student is definitely learning, and she is telling me that she would practice structures on her own. We also discussed the leveling effect, and the role that can have in an acid base reaction. She told me that she has a better grasp on the concept and is more comfortable with the material. Finally, I wrapped up the lesson by running really quickly through some examples on how to name some organic hydrocarbons. She says that this material is easy for her, but I would like to cover my bases early, as I know that IUPAC nomenclature can get tricky if one does not have the basics down. I will most likely want to review these with her next time. The student is telling me she will most likely get her test back tomorrow, and at that time she will know more about what she needs to go over, and how to make our sessions cover the topics she really needs to work on."
"We reviewed for her upcoming quiz. It was mostly structure and resonance. We covered a little bit of acid/base chemistry. One of the big underlying concepts is charge density. I tried to emphasize it, as it ties all of these concepts together."
"We reviewed names and structure for basic OChem molecules and how the suffix changes when a molecule becomes a substituent. We discussed what causes resonance structures in a molecule and how resonance affects the stability of the molecule. We also discussed IUPAC naming protocols for alkanes. We focused on ring structures and determining orientation of substituents for both configurations. We also reviewed how to draw Newman diagrams and how to determine the most stable configuration."
"We covered Newman projections, conformational isomers, hybridization theory, and conformational energy levels."
"We did NMR and organometallic reagent reactions with the carbonyl compounds to produce alcohols and alkanes."
"I have included some tips to remember from today's session: resonance structures which put a negative charge and a positive charge on adjacent carbon atoms aren't resonance structures that are likely to happen, and are almost definitely not worth writing down. In regard to the hybridization of an alcohol that is part of a delocalized system, while I would argue that it has some sp2 character, I would identify it as sp3 if I had to choose one. I wanted to reaffirm what I was saying regarding non aromatic delocalized pi systems: just draw all of the pi orbitals that could participate, make sure you have the right number of electrons in that pi system, and then mix away, making sure you include your nodes."
"We went over stereoisomers (enantiomers, diastereomers, geometric, etc.) and how to determine R and S configurations and meso compounds from Newman, Fischer, and dashed-wedged projections. The student struggled at first with visualizing the rotation of molecules around the carbon bonds but at the end felt confident she understood the material."
"Beginnings of organic chemistry: VSEPR, dipole moments, solubility, and intermolecular forces preparing for an exam tomorrow."