ainemäärissä
Ainemäärissä is a Finnish expression used to describe quantities in terms of amount of substance. In chemistry, the term ainemäärä refers to the amount of substance, a base quantity in the SI system, and is measured in moles. The form ainemäärissä (in the amounts of substance) is used when speaking about measurements or calculations expressed in moles or related quantities.
The amount of substance, symbolized by n, is defined by the relationship n = N / N_A, where
Ainemäärä relates to mass through the molar mass M: m = n × M, where M is the
In practical chemistry, expressions in ainemäärissä are central to stoichiometry. Balanced chemical equations express proportional relationships
See also: mole, Avogadro’s number, molar mass, stoichiometry.