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."