Moles And Equations Defintions Flashcards
(9 cards)
Amount of a substance
The amount of substance is the quantity who’s unit is a mole.
Definition of Avogadro’s constant
The number of atoms per mole of carbon 12 isotope.
Definition of the mole
The amount of any substance containing as many particles as there are carbon atoms in exactly 12g of carbon 12 isotope.
Definition of empirical formula
Is the simplest whole number ratio of the atoms of each element in a compound.
Definition of molar mass
Molar mass(Mr) is the mass per mole of a substance in g/mol.
Definition of molecular formula
The actual number of atoms of each element in a molecule.
Definition of anhydrous
A substance containing no water molecules.
Definition of hydrated
Crystalline and containing water molecules.
Definition of water of crystallisation
Water molecules that form a essential part of the crystalline structure of a compound.
