Hangar One is one of the world's largest freestanding structures, covering 8 acres (3.2 ha) at the Moffett Field airship hangars site at Moffett Field in Mountain View, in Santa Clara County of the southern San Francisco Bay Area, California.
Molar concentration (also called molarity, amount concentration or substance concentration) is a measure of the concentration of a solute in a solution, or of any chemical species, in terms of amount of substance per unit volume.
Molality, also called molal concentration, is a measure of the concentration of a solute in a solution in terms of amount of substance in a specified amount of mass of the solvent. This contrasts with the definition of molarity which is based on a specified volume of solution. A commonly used unit for molality in chemistry is mol/kg. A solution of concentration 1 mol/kg is also sometimes denoted as 1 molal.