Atomic theory formula for the water molecule (HO), or 16 if one assumes the modern water formula (HO). The flaw in Dalton's theory was corrected in principle in 1811 by Amedeo Avogadro. Avogadro had proposed that equal volumes of any two gases, at equal temperature and pressure, contain equal numbers of molecules (in other words, the mass of a gas's particles does not affect the volume that it occupies). Avogadro's law allowed him to deduce the diatomic nature of numerous gases by studying the volumes at which they reacted. For instance: since two liters of hydrogen will react with just one liter
Amagat's law Amagat's law Amagat's law or the Law of Partial Volumes describes the behaviour and properties of mixtures of ideal (as well as some cases of non-ideal) gases. Of use in chemistry and thermodynamics. Amagat's law states that the extensive volume "V = N·v" of a gas mixture is equal to the sum of volumes "V" of the "K" component gases, if the temperature "T" and the pressure "p" remain the same: This is the experimental expression of volume as an extensive quantity. It is named after Emile Amagat. According to Amagat's law of partial volume, the total volume of a