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.
If a number is not what you were hoping for, it may suffice to give a definition instead. The molar mass of Aluminum is the mass in grams that 6.02 x10^23 atoms (Avogadroâs Number) or one mole of Aluminum weighs. This mass comes directly from the periodic table as Aluminumâs atomic mass, which is roughly 27. Views Â· View Upvotes.