![]() ![]() In the multiple compounds above, the ratio of "O" atoms per the one "C" atom is 2:1. Law of Multiple Proportions = when 2 elements form a series of compounds, the ratios of the 2nd elements that combine with the first element can be reduced to small whole numbers. * When John Dalton was on his way to discovering the "atom," he stumbled into, and thus discovered the next law. In other words, the ratio of H:O atoms in water is always 2H : 1O within the one, definite compound, H 2O. Thus, water is always 11.2% H and 88.8% O by mass. ➞ the total is the molar mass, or molecular weight of water = 18.02 g/mol. Law of Definite Proportions = a given compound always contains exactly the same proportion (ratio) of elements by mass. ➞ Since matter can neither be created nor destroyed, we must have four hydrogens and two oxygens on both sides of the equation ~~ on both sides of the chemical reaction. This law is credited to Lavoisier (1743 - 1794).Įx: Consider the decomposition of water into its elements. Law of Conservation of Mass = matter is neither created nor destroyed. ![]() In General Chemistry there are 3 Fundamental Chemical Laws to be aware of. ![]() Today we are going to discuss the Law of Conservation of Mass, the Law of Definite Proportions, the Law of Multiple Proportions, and Dalton's Atomic Theory. 3 - Chemical Quantities and StoichiometryĤ - Types of Chemical Reactions and Solution Stoichiometryħ - Quantum Mechanical View of the Atom, and Periodicityĩ - Covalent Bonding and Molecular Orbitalsġ0 - Liquids, Solids, and Intermolecular Forcesġ5 - Applications of Acid-Base Equilibriaġ6 - Spontaneity, Entropy, and Free Energyġ8 - Transition Metals and Coordination ChemistryĢ0 - An Introduction to Organic Chemistryġ - Structural, Bonding, Molecular PropertiesĢ - The Nature of Organic Compounds: Alkanes and Cycloalkanesģ - Stereochemistry of Alkanes and Cycloalkanes: 3-D Structures of MoleculesĤ - The Study of Organic Reactions: An Overviewġ0 - Substitution (SN2, SN1) and Elimination (E2, E1) Reactionsġ1 - Mass Spectrometry and IR Spectroscopyġ3 - Conjugated Systems and UV Spectroscopyġ5 - Electrophilic Aromatic Substitution (E.A.S.)ġ8 - Aldehydes and Ketones: Nucleophilic Addition ReactionsĢ0 - Carboxylic Acid Derivatives and Nucleophilic Acyl Substitution ReactionsĢ1 - Carbonyl Alpha-Substitution Reactions ![]()
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