Search results
Results from the WOW.Com Content Network
Hydrogen chloride is produced by combining chlorine and hydrogen: Cl 2 + H 2 → 2 HCl. As the reaction is exothermic, the installation is called an HCl oven or HCl burner. The resulting hydrogen chloride gas is absorbed in deionized water, resulting in chemically pure hydrochloric acid. This reaction can give a very pure product, e.g. for use ...
Hydrogen chloride can be generated in many ways, and thus several precursors to hydrochloric acid exist. The large-scale production of hydrochloric acid is almost always integrated with the industrial scale production of other chemicals , such as in the chloralkali process which produces hydroxide , hydrogen, and chlorine, the latter of which ...
The creation of mathematical models of molecular properties and behavior is referred to as molecular modeling, and their graphical depiction is referred to as molecular graphics. The term, "molecular model" refer to systems that contain one or more explicit atoms (although solvent atoms may be represented implicitly) and where nuclear structure ...
Several of the CPK colors refer mnemonically to colors of the pure elements or notable compound. For example, hydrogen is a colorless gas, carbon as charcoal, graphite or coke is black, sulfur powder is yellow, chlorine is a greenish gas, bromine is a dark red liquid, iodine in ether is violet, amorphous phosphorus is red, rust is dark orange-red, etc.
Van der Waals radius space filling model of Hydrogen chloride. Date: 3 September 2006: Source: Own work, used HCl_molecule_model-VdW_surface.png as reference
It is represented by the symbol H + because it has the nucleus of a hydrogen atom, [2] that is, a hydrogen cation. A cation can be a conjugate acid, and an anion can be a conjugate base, depending on which substance is involved and which acid–base theory is used.
The smallest molecule is the diatomic hydrogen (H 2), with a bond length of 0.74 Å. [24] Effective molecular radius is the size a molecule displays in solution. [25] [26] The table of permselectivity for different substances contains examples.
Another method is the heating of hypochlorous acid, producing chloric acid and hydrogen chloride: [citation needed] 3 HClO → HClO 3 + 2 HCl. Any way it is produced, the acid may be concentrated up to 40% in a vacuum dessicator over H 2 SO 4. [2]