Recent Tutoring Session Reviews
"Today we covered acid base chemistry, solving molar problems, weak acid problems, salt problems, and neutralization reactions. We started the session with a quiz which the student did quite well on. The next session will finish all the acid base chemistry that will be on the exam in May."
"The student was given a very long practice exam of approximately 200 assessment test questions. We worked on that practice exam doing molality and molarity problems, as well as some solubility problems. The student is getting much better at predicting products of reactions and determining solubility. She still struggles with molality and molarity."
"The student wanted to continue the topics in the test review book. As such, today we covered electrochemistry. We briefly defined reduction and oxidation reactions, and then quickly moved onto the determination of oxidation number in finding the oxidized and reduced species in a reaction. The oxidation number rules were explained from the point of view of electronegativity. She had challenges with this at first, but quickly picked it up. We then discussed what a reduction potential is (drawing a parallel between heat energy released in enthalpy and electrical energy in potential) and how they would be used in problems. After that, we applied reduction potentials in a discussion of galvanic and electrolytic cells, going over these problems as well. Lastly, we briefly touched on the Nernst equation as it quantifies deviations from standard potentials, and how we can relate the potential of a cell to K and Gibbs to prove spontaneity."
"We continued to work on chemistry. We also covered some calculus. The chemistry was once again focused on thermodynamic properties. The questions this time were a bit more challenging and required us to go back to the first law of thermodynamic, G = H -TS. There was a focus on how temperature governs whether the reaction is spontaneous or not as well as deciding if a given reaction increases or decreases entropy. For calculus we focused on implicit differentiation and determining instantaneous rates. She seems to be getting the concepts."
"The student and I finished going over the first practice AP. We started checking her answers on the second practice AP. She improved her multiple choice score by 20% (from a 29/75 to a 35/75, which translates to a 4 on the AP). Her weakness is still open ended questions, so we will focus on those. She continues to be motivated and interested."
"Today's session was dedicated to electrochemistry. We started by learning about oxidation states, and how to place atoms in order of electrical priority. We then learned how to distinguish oxidation and reduction half reactions, as well as how to balance the redox reactions (in both acidic and basic conditions). We finished by looking at the Nernst equation and how to adjust the electrical potential of a cell using non-standard measurements. The student had just reviewed this material in class, so he was very quick to understand the concepts. I was also happy to see that his nomenclature abilities have improved noticeably. The next session will be used to sum up electrochemistry, and how to compare Gibb's free energy, cell potential, and the equilibrium constant."
"During this session, a past exam on electrochemistry was reviewed. Periodic table trending such as IE, EN, EA, etc., were reviewed, as well as the different types of intra/intermolecular bonds and examples of each. Next session, it is expected that most of the topics for the next exam will be reviewed during the session."
"The student and I covered and assortment of topics in our session. Among the topics we covered were electrochemistry, kinetics, radioactive decay, and equilibrium. We completed problems together pertaining to these topics. No concerns from this session."
"We went through the student's exam review which was about intermolecular forces and different bonds. We also covered which one is stronger and causes a higher boiling point. Then we covered some questions regarding the solubility and saturation as well as partial pressure. He is doing well."
"Reviewed multiple choice questions and concepts that the student was weak on in one of his study guides. From there, went into talking about Molecular Orbital Theory as he was struggling to understand the different parts of it. After the session we talked with him and his father about his options in regards to taking the test or the class final."
"We went over a practice exam for the test. We went over various multiple-choice problems and several practice free-answer problems. We reviewed a wide variety of subjects, such as conductivity, acid-base reactions, intermolecular forces, polarity, boiling points, and covalent bonding. Overall, the review went very well and the student seemed to understand the concepts we went over."
"Tonight, we covered more Electrolytic Cell problems and I reviewed what kind of problems to focus on for the exam on May 5th. Further, I suggested making flash cards of the main formulas of chemistry as a good future reference for taking Chemistry in college. The student mentioned that he would like me to help with his studies for pre-calculus as well. To which I agreed to help him study. He is doing excellently with his chemistry, and I'm really proud of the work he has done."