A rough & ready method involves memorising three numbers â 3, 5 and 8 â and the fact that 1 km in miles is approximately equal to the first of these numbers divided by the second, or alternatively the second divided by the third. That is: 1 km â 3/5 or 5/8 miles.
Ammonium chloride solutions with ammonia are used as buffer solutions. In paleontology, ammonium chloride vapor is deposited on fossils, where the substance forms a brilliant white, easily removed and fairly harmless and inert layer of tiny crystals.
Hydrochloric acid (HCl) donates a proton to ammonia (NH3) to form the ammonium cation (NH4+) and the chloride anion (Cl-). Hydrochloric acid is a Bronsted-Lowry acid; the chloride ion is its conjugate base. Ammonia is a Bronsted-Lowry base; it's conjugate acid is the ammonium ion. Understand the Bronsted Lowry Theory of Acids and Bases. Here's What an Acid Is in Chemistry. Key Acids and Bases Definitions.