Recent Tutoring Session Reviews
"The student's class is scheduled to take two tests within the next two weeks, so today we did an intensive review of rate laws and reaction mechanisms. Luckily, this is the same topic we were working on before the break, so the student was easily able to complete most of the questions. I felt very confident with this topic, and tried to provide shortcuts as a possible alternative to the more dense terms in which her teacher had introduced the subject. We also looked at the data from a calorimetry lab that her class had finished this week, and we solved a small number of tricky word problems for her math class. It was a really nice session!"
"The student had some work to complete covering the field of electrochemistry, including a worksheet and some prelab questions. New topics included identifying components of a galvanic cell, using reduction potentials to calculate the Gibbs free energy change and/or equilibrium constant; she was also able to review balancing oxidation-reduction equations, which is indispensable for nearly all electrochemistry problems. She was able to solve most problems with little trouble; in the only significant hurdle, we both spent a bit longer than usual trying to find the (Faraday) constant relating moles of electrons transferred to charge transferred."
"He is testing tomorrow. We went over problems involving vapor pressure and the relationship of different factors that may or may not effect vapor pressure. We discussed the strength of two and three dimensional covalent bonds."
"We went over concepts of entropy and Gibbs free energy. We talked about the favorable conditions for a reaction to be spontaneous and that a negative value of delta G denotes that the reaction will be spontaneous. We reviewed enthalpy as well."
"The student and I focused on his lab on atomic spectroscopy. He worked on the questions that he had to answer involving ground states and excited states of electrons, and how the quantization of energy in the form of photons is responsible for changes in electron energy. We also went over some concepts that he will cover later this week, in an effort to prepare him. Lastly, we went over the geometry concepts that he covered today, and we focused on the theorems and outlining proofs, since this is the part of geometry that he finds most challenging."
"Here we focused on reaction rates. By the end of the session, the student had a much better understanding of kinetics. He also became able to derive equations such as those for calculating reaction half-lives for reactions of different orders."
"The student and I discussed topics related to electrochemistry (reviewing a few mistakes he made on a recent test). We also worked through some practice problems related to acid/base chemistry (calculating pH, pOH, dissociation constants, and using these calculations to find the concentrations of hydronium or hydroxide ions)."
"This was our first session. We reviewed Kinetics and went over her most recent test. As we continue to work together, I believe that she will improve greatly on her tests."
"Reviewed for the student's test on Friday, going over material from her current chapter on bonds, and the relationship to orbitals. Spent some time as well going over concepts and question concepts likely to be seen on the exam"
"I explained to him the concept of ionic equation, net ionic equation and how he can find net ionic equation. We also covered how he can find the state and phase of each compound and how he has to use that to find the net ionic equation. We covered the concepts behind different kinds of reactions and how he can determine each such as synthesis, single replacement, double replacement and so on. He is doing good and he understood how he has to solve the questions. We solved several example in each part. I told him to solve the questions again without looking at the solutions to see if he can solve them or not then we can work on the problems that he had next session."
"We went over how to solve density for face centered cubes and body centered cubes. We also worked on problems that involved the ideal gas law and how to find number of moles gas in a container."
"The student had several compounds that he had to answer the same questions for all of them. Polar/Nonpolar? Shape? dipole? does dipole cancel? We talked about the shape and what was happening with the electron cloud of each atom to determine polarity and dipoles."