Chemistry 7405/3 June 2023

The exam evaluates advanced chemistry concepts, focusing on experimental techniques, spectroscopy, and organic mechanisms. Topics include esterification, reflux and distillation, and yield optimization. Spectroscopy sections explore IR, NMR, and chromatography for compound identification. Organic chemistry examines isomerism, dehydration mechanisms, and peptide hydrolysis. Analytical methods address enthalpy of vaporization, pH calculations, solubility equilibria, and buffer solutions. Inorganic chemistry assesses ligand substitution, catalysis, and reaction mechanisms. Practical applications include calorimetry, fractional distillation, and amino acid identification using TLC. The paper emphasizes theoretical understanding, quantitative reasoning, and real-world chemical analysis across organic, inorganic, and physical chemistry domains.