Final answer:
The term 'grams per mole' (g/mol) is used when discussing both molar mass and atomic mass. It represents the mass of one mole of a substance whether it be an element or a compound. This unit allows for conversions between mass and number of moles in chemical calculations.
Step-by-step explanation:
The term 'grams per mole' or 'g/mol' is applicable in the context of both molar mass and atomic mass. The molar mass of a substance is defined as the mass of one mole of that substance and is measured in grams per mole or g/mol. This is the same for the atomic mass of an element, which is the number of grams in one mole of atoms for that element. The molar mass for an element or compound can be found by looking at the atomic or molecular weight listed on the periodic table, usually found beneath the chemical symbol, and this value is expressed in grams per mole.
For molecular or ionic compounds, the molar mass is the mass of one mole of the compound's molecules or formula units, respectively, also expressed in grams per mole. The process of converting between mass and number of moles involves using the molar mass as a conversion factor in dimensional analysis. One mole is defined as Avogadro's number (6.022 × 1023) of atoms, molecules, or formula units, depending on the substance.