Stoichiometry

rest mass of an atom in its ground state

mass per amount of substance

model of chemical reaction in form of a written equation

extensive physical property

sum of atomic masses of all atoms in a molecule

thumb|A stoichiometric diagram of the combustion reaction of [[methane]]

volume per amount of substance

statement that a given chemical compound always contains its elements in fixed ratio (by mass) and does not depend on its source and method of preparation

measure of the concentration of a solute in a solution, or of any chemical species, in terms of amount of substance in a given volume; most commonly expressed in units of moles of solute per litre of solution

dimensionless physical quantity: ratio of the average mass of atoms of an element to one unified atomic mass unit

chemical law that, if two elements form more than one compound, then the ratios of the masses of the second element which combine with a fixed mass of the first element will always be ratios of small whole numbers

any of several relative and absolute measures of the amount of desired product obtained in a chemical reaction

unit of measurement

in chemistry

reactant introduced in insufficient quantity, totally consumed and stopping the chemical reaction

relative atomic mass, in samples by standard, as published by IUPAC (CIAAW)

Measure of reaction efficiency

any of several relative and absolute measures of the amount of reactants consumed in a chemical reaction

Formulation is a term used in various senses in various applications, both the material and the abstract or formal. Its fundamental meaning is the putting together of components in appropriate relationships or structures, according to a formula. Etymologically formula is the diminutive of the Latin forma, meaning shape. In that sense a formulation is created according to the standard for the product.

the total number of atoms present in one molecule of an element, compound or a substance is usually reffered to as atomicity.

Field of study