Recent Tutoring Session Reviews
"Today we went over colligative properties like vapor pressure, osmotic pressure, and change in temperature when solutes are added. The student's attitude was very positive and she had fun going through the problems."
"In this session, chapter 9 of the text was completed and half of chapter 10 was covered. The material covered consisted of a quick review of molecular geometry and bond angles, polar/nonpolar molecules, the mole concept and Avogadro's constant, conversion of grams to moles and moles to grams, conversion of moles to liters, and density. Our next session will finish up chapter 10 and start chapter 11. Upon completion the student will be ready to take on chemical equations and stoichiometry, bringing her up to speed with the rest of her class."
"We spent the session going over the concept of geometric mean. Originally the student was having trouble deciding which numbers to use, so we developed a step-by-step thought process in order to walk her through to the correct numbers. By the end of the session she was doing practice problems perfectly on her own. She said she has aced her chemistry quizzes this semester so far and understands that material, so we didn't go over any chemistry. She got B's in both classes last semester, but she would like to get A's and so far I think she is off to a good start."
"The student needed a complete overview of acids and bases. I think we covered everything he needed in our session. We covered the basics of conjugate acid base pairs, how to write A/B equations, neutralization concepts and calculations and pH. Going through the concepts and reteaching them really seemed to help him understand the topics, and he did much better answering his review questions after our conversation. Hopefully he does well on his test tomorrow."
"We discussed stoichiometry, balancing of chemical equations and chemical bonding. We did several problems. These are the some of the most important chapters in the current curriculum and the most basic chapters in chemistry, in general. Stoichiometry, especially, involves a lot of math. The student was struggling a lot with the concepts of (a) moles vs molecules, (b) molarity vs other type of concentrations, (c) basic concepts of balancing equations. Through the practice problems and discussions, the student was learning to do them himself. The student was left with more practice problems that should help him for his exam."
"We worked through a review of quantum chemistry problems related to quantum numbers, electron configurations, isoelectronic ions, lattice energy, ionization energy, electron affinity, bond energy, and enthalpy of sublimation. The student now has a much stronger understanding of electron configurations. He will complete the remaining chemistry problem set for our session Wednesday."