Superficial destruction of a surface by friction, pressure, ulceration, or trauma. The wearing away of a tooth by chemical or abrasive action. Also called odontolysis. erosion. The gradual wearing away of land surface materials, especially rocks, sediments, and soils, by the action of water, wind, or a glacier.
In chemistry, the molar mass M is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg / mol.
Best Answer: Molar mass is calculated by adding up all the weights of the elements together in a compound. Such as, Aluminum has an atomic weight of 26.98. The funny thing about chemistry, one mole (6.022 x 10*23) of any compound, element, etc is the same as it's atomic weight.