Ammonium sulfate, · Ammonium sulfate (American English and international scientific usage; ammonium sulphate in British English); (NH4)2SO4, is an inorganic salt with a number of commercial uses. The most common use is as a soil fertilizer. It contains 21% nitrogen and 24% sulfur.Precipitation Reaction: Using Solubility Rules, · When two aqueous solutions of ionic compounds are mixed together, the resulting reaction may produce a solid precipitate. This guide will show how to use the solubility rules for inorganic compounds to predict whether or not the product will remain in solution or form a precipitate. ...5 Easy Ways to Calculate the Concentration of a Solution, · In chemistry, a solution's concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. The standard formula is C = m/V, where C is the concentration, m is the mass of the...(PDF) Characteristics of Silica Fume Concrete, · With the proper use of silica fume not only the mechanical properties can be improved, but also the durability of concrete. Numerous studies have been carried out on use of silica fume as an ...Inorganic Chemistry/Qualitative Analysis/Tests for anions, · When a freshly prepared acidified solution of ferrous sulphate is added to a solution of nitrate ions, in the presence of concentrated H 2 SO 4, a deep brown ring is formed. This deep brown ring is due to the formation of the complex sphere [Fe(H 2 O) 5 NO] 2+ ..