Expert School Science Tutor with a Passion for Health and Earth Sciences Mastery

Iliana is tutored by Aashima on electrolysis, redox reactions, and corrosion in preparation for an exam. They cover factors influencing electrolysis (electrochemical potential, concentration, electrode type), competition between species at electrodes (water vs. ions), and corrosion, particularly rusting of iron. They also discuss corrosion prevention methods, oxidation numbers, oxidizing/reducing agents, and balancing redox reactions. Iliana clarifies her understanding of key concepts like inert vs. active electrodes.

Aashima tutored Iliana on electrolysis and electrochemistry, covering electrolysis principles versus galvanic cells and applications like metal extraction, electroplating, and electrorefining. They discussed electrolysis of molten NaCl and water, and the importance of standard reduction potentials. They plan another session before Iliana's test, potentially focusing on primary and secondary cells.

Aashima and Iliana discussed galvanic cells, including their components, function, and cell representation using the zinc-copper cell as an example. They covered how to calculate cell potential and the impact of external voltage on cell behavior. Iliana will review the material and practice questions, with electrolysis planned for the next session.

Aashima Sharma tutored Iliana Diamandis on back titration techniques and calculating total alkalinity in water samples, in preparation for Iliana's upcoming exam. Iliana practiced applying these concepts through example problems, including one involving calcium carbonate and another concerning river water alkalinity. Aashima assigned additional titration problems for Iliana to complete after her exam.

Aashima tutored Jane, reviewing Jane's chemistry assignment. They discussed limiting reagents, percentage yield, equilibrium constants, reaction quotients, Le Chatelier's principle, electrolytes, solubility, and pH calculations. Aashima corrected Jane's mistakes and offered detailed explanations. They considered scheduling another session to complete the remaining questions.

Aashima and Iliana worked through a challenging chemistry problem involving the determination of mass percentages of iron and calcium in a sample using redox titrations. Aashima guided Iliana in constructing and balancing the relevant chemical equations and applying stoichiometric principles. They also reviewed concepts related to equilibrium and acid-base chemistry, and they scheduled the next session for Monday, planning to cover back titrations.