Expereinced and patient online tutor, in scientific subject (chemistry, biology, ...)

The Student and Tutor focused on chemistry homework, covering topics such as writing ionic symbols, differentiating between atomic mass, molar mass, and mass number, and calculating empirical formulas from percent composition. They also practiced quantifying individual atoms within compounds and initiated a multi-step molar calculation problem involving a food product. The Student indicated they would likely need more sessions after receiving their exam grades.

The Student and Tutor conducted a comprehensive review of chemistry concepts and formulas in preparation for a final exam. They covered topics including liquid properties, intermolecular forces, various aspects of solutions and colligative properties, and detailed methods for balancing both redox and general chemical equations. They also planned to begin learning organic chemistry basics in future sessions.

The Student and Tutor reviewed various Chemistry topics, starting with pH calculations for weak acids and bases. They progressed to calculating pH for buffer solutions using the Henderson-Hasselbalch equation, including adjustments for adding strong acids or bases. The session also covered titration calculations, emphasizing the importance of using specific data from the platform and accounting for polyprotic acids, and briefly introduced Ksp calculations. The Student has upcoming quizzes and was advised to consistently use the platform's data table for constants.

Student and Tutor covered various aspects of chemical kinetics, including writing rate expressions, determining reaction orders from experimental data, calculating rate constants, and applying integrated rate laws and half-life formulas for first- and second-order reactions. They also discussed reaction molecularity and the concept of the rate-determining step in reaction mechanisms. The Student is preparing for upcoming tests and received a comprehensive formula review at the end.

The Student and Tutor worked through fundamental concepts in General Chemistry II, including naming covalent compounds, drawing Lewis dot structures, determining molecular polarity, and calculating formal charges. They also explored different types of intermolecular forces. The session concluded with a brief overview of electron pair versus molecular geometry, with the Tutor providing a reference chart for the Student's future study.