Engage with a Chemistry Expert from West Chester University for Interactive Learning Journeys.

Robert assisted Shae with understanding aromatic chemistry, focusing on activators, deactivators, and directing effects in electrophilic aromatic substitution. They worked through practice problems, identifying reaction mechanisms and predicting products. Shae will practice additional problems and ask her professor about a discrepancy in the textbook regarding acylation versus alkylation reactions.

During a recent chemistry lesson, Robert assisted Katie with her lab assignment, specifically addressing the critical concepts of accuracy, precision, and significant figures in experimental data. They meticulously reviewed calculations, pinpointing errors in Katie's approach, particularly concerning the determination of water's density. Katie plans to refine her measurements for the lab and has arranged for a follow-up lesson next week.

Robert and Cassy dedicated their recent organic chemistry lesson to tackling a variety of complex problems. Their work encompassed drawing stereoisomers, calculating enantiomeric excess, determining optical activity, and converting bond-line structures into Fisher projections. They also thoroughly reviewed R/S configurations, the concept of chirality, and the properties of meso compounds. Cassy plans to submit her homework, and they've arranged to meet again next week to continue their studies in organic chemistry.

Robert provided support to Katie for her biology coursework, delving into topics such as cell theory, the domains of life (Bacteria, Archaea, Eukarya), and the concept of LUCA. Their discussion also touched upon surface tension, the pepper and soap experiment, and the electrical conductivity of the human body. Katie plans to reattempt her quiz questions, and they have arranged a subsequent lesson to tackle scientific notation and unit conversions in preparation for an upcoming lab quiz.

During a recent lesson, Robert helped an individual from Cape Coral review electron configurations, isotopes, and ions in preparation for a chemistry exam. The learner practiced problems related to electron configurations, determining the number of subatomic particles in isotopes and ions, and using the equations E=hv and c=λv to solve for energy, frequency, and wavelength. They also discussed strategies for memorizing formulas and managing test anxiety.

Robert assisted Isha with a comprehensive chemistry lesson, focusing on practice questions related to mass spectrometry, molecular formula determination, and stoichiometry. Isha actively worked through problems from practice tests, specifically addressing calculations for average atomic mass, determining molecular formulas, and converting between grams, moles, and atoms. Together, they reviewed the correct problem-solving approaches and underscored the importance of using Avogadro's number when dealing with molecules.