Water and Wastewater Terms Beginning N

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

N (normal)

A normal solution contains 1 gram equivalent weight of reactant (compound) per liter of solution. The equivalent weight of an acid is that weight that contains 1 gram atomic weight of ionizable hydrogen or its chemical equivalent. For example, the equivalent weight of sulfuric acid (H₂SO₄) is 49 (98 divided by 2 because there are 2 replaceable hydrogen ions). A 1.0 N solution of sulfuric acid would consist of 49 grams of H₂SO₄ dissolved in enough water to make 1 liter of solution.