Dedicated Chemistry Tutor Helping Students Understand Concepts and Improve Exam Performance

The Tutor and Student reviewed various Chemistry topics, including the definition and classification of carbohydrates, their structures and bonding, and different types of polysaccharides. They also practiced a range of questions covering electrolysis, acid-base concepts like amphiprotic species, reaction energetics, Le Chatelier's principle, organic nomenclature, and isomerism. The Student was encouraged to review the carbohydrate topic and identify any remaining gaps, with future sessions planned for extensive past paper practice.

The Student and Tutor reviewed polymers, covering their definitions, types of polymerization (addition and condensation), and specific examples like polyethene, nylon, and polyesters. They also delved into the four levels of protein structure and the types of bonding that stabilize each. The Student was assigned homework to draw polymer structures and linkages, and to confirm specific syllabus topics like polypropene tacticity and amino acid identification techniques.

Student and Tutor reviewed key concepts in chemical equilibrium, including the equilibrium constant, reaction quotient, and Le Chatelier's Principle. They practiced calculating equilibrium constants, interpreting reaction shifts based on Qc and Kc values, and analyzing concentration and rate-versus-time graphs. The Student will prepare exam questions on the topic for the next session.

The Student and Tutor engaged in a detailed Chemistry session, primarily focusing on organic reactions, including mass spectrometry and IR spectroscopy to identify unknown alcohol structures and their oxidation products. They extensively practiced identifying reagents and products for alcohol oxidation, dehydration, and addition reactions, clarifying the roles of different catalysts and conditions. The session concluded with planning to cover carbohydrates in the next class, for which the Student will provide relevant syllabus points.

The session focused on organic chemistry reaction pathways, where the Student and Tutor worked through several complex flowcharts, identifying reactants, products, and reaction types such as substitution, elimination, addition, oxidation, and esterification. They also discussed interpreting reaction conditions and qualitative tests. The Student was assigned to practice similar reaction pathway questions from past papers and will cover organic polymers and carbohydrates in the next class.

The Student and Tutor continued their study of electrochemistry, focusing on calculating E-not cell, understanding spontaneous and non-spontaneous reactions, and detailing the characteristics and principles of electrolytic cells. They practiced determining products of electrolysis for both molten and aqueous solutions, considering factors like ion concentration and electrode type. The session concluded with a plan to complete remaining practice questions in the next class.