Dr. Sofia Marchetti, PhD
Chemist
Physical chemist and laboratory educator bringing rigorous solution science to accessible, accurate online tools.
Dr. Sofia Marchetti is a physical chemist and research scientist at the CNR's Istituto di Scienze e Tecnologie Chimiche in Milan, where her laboratory work centers on the thermodynamic behavior of electrolyte solutions, solubility equilibria, and the characterization of concentrated mixed-solvent systems. She completed her doctorate at the Università degli Studi di Milano under Professor Elena Torri, developing computational models for ionic activity coefficients in non-ideal solutions, work that has since informed industrial formulation standards across pharmaceutical and specialty chemical manufacturing in northern Italy. A postdoctoral fellowship at ETH Zürich expanded her expertise into gas-phase kinetics and calorimetric measurement techniques.
Since 2016, Dr. Marchetti has taught physical chemistry at the Università degli Studi di Milano-Bicocca, where she developed a reputation for translating mathematically dense topics, van 't Hoff factors, Raoult's law deviations, and limiting-reagent analysis, into structured, step-by-step frameworks that students can reliably apply. That same pedagogical discipline underpins her work as an author and reviewer for OnlyCalculators, where she oversees tools covering general chemistry, solutions, stoichiometry, and gas laws. Each calculator she stewards is cross-validated against peer-reviewed reference data and tested against worked examples drawn from standard analytical practice.
Dr. Marchetti's contributions to OnlyCalculators are grounded in a clear conviction: errors in chemistry calculations carry real consequences, whether in a teaching laboratory, a pharmaceutical QC workflow, or an industrial scale-up process. Her review process involves checking formula derivations at the boundary conditions most likely to reveal rounding inconsistencies or unit-conversion errors, and she regularly updates tool documentation to reflect current IUPAC nomenclature and SI conventions. She is a Fellow of the Royal Society of Chemistry and a Certified European Chemist, and presents annually at the Società Chimica Italiana national congress.
“Every calculator she publishes is verified against authoritative reference data and boundary-tested at the edge cases where real-world mistakes most often occur.”