Mole
Science

The weighted average mass of an element’s isotopes, based on 1/12 the mass of a carbon-12 atom
Average atomic mass
The weighted average mass of an elements isotopes, based on 112 the mass of a carbon-12 atom. Average atomic mass. Average atomic mass is the calculated mean mass of an element's isotopes, taking into account their natural abundance.

The mole is the unit of amount in chemistry. a substance that contains 6.02 × 1023 representative particles
Mole
The mole is the unit of amount in chemistry. A substance that contains 6.02 10 representative particles. A mole is a counting unit used in science to measure large quantities of tiny entities, like atoms or molecules.

A fraction equal to the number of moles of a component, divided by the total number of moles in a solution
Mole fraction
A fraction equal to the number of moles of a component, divided by the total number of moles in a solution. Mole fraction. In simple terms, mole fraction is a way to express the concentration of one component in a mixture by comparing it to the total amount of all components combined.