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.
Ammonia is a compound with the formula NH3, it is a weak base. Ammonium is a polyatomic ion with the formula NH4+.The ammonium ion is formed when ammonia reacts with an acid and is itself mildly acidic. because it is positively charged is is not found on its own but accompanied by a negative ion such as in ammonium nitrate, NH4NO3.mmonia is a compound with the formula NH3, it is a weak base. Ammonium is a polyatomic ion with the formula NH4+.