Expert Physics Tutor helping students move from confusion to understanding and then confidence

The student and tutor worked through practice problems focusing on stoichiometry, molar mass calculations, Avogadro's constant, and thermochemical principles including endothermic and exothermic reactions. They discussed problem-solving strategies for heat and work calculations and applied these to relate reaction enthalpies to mass and moles of substances. Future sessions were planned to cover Lewis structures.

The tutor and student reviewed various chemistry concepts including molecular orbital theory, covalent bonding, Lewis structures, formal charges, intermolecular forces (LDFs, dipole-dipole, hydrogen bonding), hybridization, molecular geometry, and resonance structures. They worked through several practice problems and discussed concepts related to bond polarity, bond order, and molecular properties.

The tutor and student reviewed intermolecular forces (London dispersion forces, dipole-dipole, and hydrogen bonding) and their relationship to boiling points. They practiced predicting boiling points based on molecular structure and intermolecular forces, and discussed the concept of distillation as a separation technique. The tutor also explained 3D molecular representation using wedge and dash notation.

The tutor and student reviewed concepts related to enthalpy, exothermic and endothermic reactions, and heat capacity calculations. They practiced solving problems involving calorimetry, including determining heat of combustion, enthalpy of reaction, and temperature changes. The student will continue practicing these concepts for an upcoming test.

The Tutor and Student reviewed intermolecular forces (IMFs) and their relationship with boiling points, covering London Dispersion Forces, dipole-dipole interactions, and hydrogen bonding. They practiced identifying IMFs in different molecules and predicting boiling points based on IMF strength. The next session is planned for Friday to prepare for a test on Monday.

The Tutor and Student reviewed the principles of rigid and non-rigid rotor models in molecular spectroscopy. They discussed energy levels, rotational quantum numbers, degeneracy, selection rules, and various types of molecular rotors. The session also covered the concept of centrifugal distortion and applications in fields like astronomy, with practice questions reinforcing these concepts.