dimensional analysis
The analysis of the relationships between different physical quantities by identifying their fundamental dimensions (such as length, mass, time, and electric charge) and units of measure (such as miles vs. kilometers, or pounds vs. kilograms vs. grams) and tracking these dimensions as calculations or comparisons are performed.
Mole
The amount of substance that contains as many elementary entities as there are atoms in 12 g of carbon-12.
molar mass
The mass of a given substance (chemical element or chemical compound) divided by its amount of substance (mol), in g/mol.