1797 ⟶ Joseph Proust Proposes the Law of Definite Proportions
Joseph Proust proposes the law of definite proportions, whic...Year
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1864
⚖️ Antoine Lavoisier Proposes Conservation of Mass

ChemistryLaw of Conservation of MassLavoisierStoichiometryQuantitative Analysis18th CenturyScientific RevolutionChemical Reactions

📚 Antoine Lavoisier Publishes Traité Élémentaire de Chimie
Antoine Lavoisier publishes Traité Élémentaire de Chimie, the first modern chemistry textbook. It is a complete survey of (at that time) modern chemistry, including the first concise definition of the law of conservation of mass, and thus also represents the founding of the discipline of stoichiometry or quantitative chemical analysis.⟶

ChemistryTextbookLavoisierModern ChemistryStoichiometry18th CenturyScientific RevolutionChemical Analysis

⚛️ Joseph Proust Proposes the Law of Definite Proportions
Joseph Proust proposes the law of definite proportions, which states that elements always combine in small, whole number ratios to form compounds.⟶

ChemistryLaw of Definite ProportionsProustChemical Composition18th CenturyStoichiometryChemical Compounds

🎈 Avogadro Proposes Law of Gases
Amedeo Avogadro proposes Avogadro's law, that equal volumes of gases under constant temperature and pressure contain equal number of molecules.⟶

ChemistryGas LawsAvogadro's LawMoleculesAmedeo Avogadro19th Century SciencePhysical ChemistryIdeal Gas

🎵 Newlands Proposes Law of Octaves
John Newlands proposes the law of octaves, a precursor to the periodic law.⟶

Law of OctavesPeriodic LawChemistryJohn NewlandsElement Classification19th Century SciencePeriodic Table
