Chemistry tutor near me in Fresno, CA

The Student and Tutor reviewed stoichiometry concepts essential for an upcoming chemistry exam. They covered mole ratios, limiting reactants, percent yield, molarity, and dilution calculations, practicing problem-solving techniques for these topics. The plan was to continue focusing on these areas in future sessions to ensure comprehensive preparation.

The tutor and student reviewed the definitions of acids and bases and explored the concepts of conjugate acid-base pairs. They then focused on understanding and calculating the pH of buffer solutions using the Henderson-Hasselbalch equation, practicing with several numerical examples involving the addition of acids and bases to buffers.

The class session focused on organic chemistry, specifically organometallic reagents, nucleophilic addition reactions, and multi-step synthesis problems. The student practiced identifying valid reagents, predicting reaction products, and understanding reaction mechanisms, with a review of protecting group strategies for aromatic amines.

The Tutor and Student reviewed various reactions and mechanisms related to carboxylic acid derivatives, including hydrolysis, esterification, amidation, and the synthesis and hydrolysis of nitriles. They discussed reduction reactions and the use of isotopic labeling to understand reaction pathways. The session concluded with a review of the student's notes and preparation for an upcoming exam.

The tutor and student reviewed chemical equilibrium concepts, including the equilibrium constant Kp, mole fractions, and partial pressures. They practiced calculations involving these concepts and applied Le Chatelier's principle to predict shifts in equilibrium based on changes in temperature, pressure, and volume. The session aimed to solidify understanding of equilibrium dynamics and problem-solving techniques for gaseous reactions.

The Tutor and Student worked on understanding and balancing chemical equations, including the distinction between atoms and molecules. They practiced balancing various reaction types, with a focus on combustion reactions and a systematic approach for others. The next session will cover different types of chemical reactions.