Recent Tutoring Session Reviews
"Today we discussed aldehydes and ketones. We started with aldehydes---structure, shape, synthesis. Synthesis can be as follows--- 1. Oxidation of primary alcohol (and here we must use PCC, that is, Pyridinium Chloro Chromate for the controlled oxidation of alcohol) 2. By ozonolysis of alkenes. 3. By reduction of the acyl group. For reduction it's better to use DIBAL-H, that is, diisobutyl aluminum hydride."
"The student and I covered redox reactions today, which is what she is going over in her class. She was assigned only 5 homework problems, because they had just started the topic and had not gone too far in the chapter. Specifically we worked on balancing half reactions in acids/bases, determining the oxidation states of atoms and the basics of voltaic cells. We covered what an inert cathode was and why. We covered what an activity series means in terms of oxidation/reduction."
"The student received her score on her take home exam: 98%, which is excellent! Today we reviewed that key critical information she needs to master all the materials: understanding the macromolecules and evolution. Above all other biological concepts, it is absolutely necessary that she masters today's notes that were emailed to her. We also went over the circulatory system and immunity. She is progressing well, but she still has to slow down with her reading and thought processes. Great attitude. The next exam is Friday the 13th."
"We reviewed single displacement reactions, double displacement reactions, combustion reactions, and how to balance the final equation of each type of reaction. The student is starting to get the hang of the different type of reactions and how to determine the solutions to the problems."
"The student and I reviewed a difficult and vexing homework assignment on single-slit diffraction. We talked about why diffraction can be used to measure wavelengths and the meaning of different diffraction patterns."
"We worked through one of the chemistry review packets that the teacher gave. It involved enthalpy, exo vs endothermic reactions, nuclear chemistry (alpha decay, beta decay, positron decay), isotopes and calculations involving atomic and mass numbers. It also included ions and ionic vs covalent bonds as well as characteristics of metals and nonmetals."