High School
Second Year
Second Year
Amount of Substance
Chemistry
Definition
mole
SI unit of measurement for the amount of substance (symbol mol) equivalent to that of a system containing as many elementary entities as there are atoms. It is defined by Avogadro's constant.
Formula
Determination of the mass of an entity. The mass of molecules is calculated by summing the masses of the atoms that make them up. For example: the mass of a water molecule H2O is equal to the mass of two hydrogen atoms H plus that of one oxygen atom O.
High School
Second Year
Second Year
Amount of Substance
Chemistry
Definition
mole
SI unit of measurement for the amount of substance (symbol mol) equivalent to that of a system containing as many elementary entities as there are atoms. It is defined by Avogadro's constant.
Formula
Determination of the mass of an entity. The mass of molecules is calculated by summing the masses of the atoms that make them up. For example: the mass of a water molecule H2O is equal to the mass of two hydrogen atoms H plus that of one oxygen atom O.