Recent Tutoring Session Reviews
"Today we covered new material in Unit 11, acids and bases. We discussed the concept of Arrhenius acids and bases, how to identify and name them, and some physical characteristics. We covered the concept of pH and how to calculate it given the concentration of acid or base in solution, and how to use the water constant to calculate the concentration of either hydrogen ions or hydroxide ions in solution given the concentration of the other ion. We talked about logarithms and how they are used to turn lengthy or tedious concentrations in decimal form or scientific notation into a clean 0-14 pH scale, and also how to reverse the log calculation by using powers of 10. Between these three types of calculations, we were able to solve a wide range of acid-base problems. So long as the student can remember the water constant and its equation, she does quite well with these calculations. For practice, I am making a comprehensive problem set covering Units 6,7,8,9 and 11, with emphasis on her weaker areas: compound names, empirical and molecular formulas from % composition, hydrate compounds and the new acid/base material."
"We covered how to write a lab report and the concepts of enthalpy, entropy and Gibbs free energy, and their relationship."
"We reviewed for the student's final exam. We concentrated on periodic trends (ionization energy, electronegativity, and atomic radius), acids/bases, and nomenclature."
"The student and I went over 37 questions I had picked out for him based off of difficulty, trying to challenge his weaker subjects. He got 34 out of the 37 right, and finished in about 40 minutes. Timing wise, he is doing pretty well, and even his weaker areas aren't too much of a problem. The issue to tackle next is making sure he's well prepared for one-off questions, and can cut down his time taken on some of the bigger questions."
"The student and I went over chemical kinetics, especially determining the order of a reaction and finding the rate determining step. In addition, we went over problems using the Arrhenius equation to calculate the activation energy."
"The student and I went over chemistry textbook problems. I have instructed him to work on problems at home, and we will finish the rest and check the problems he has completed at home the next time we meet on Tuesday. Topics covered in these questions include the steps of the scientific method, the difference between a theory and hypothesis, and other basic foundations of chemistry."