Ammonium salt A product of a reaction between ammonia, NH3, and various acids. The general reaction for formation is NH3 + HX –+ NH2X. Examples of ammonium salts are ammonium chloride, NH4Cl, ammonium nitrate, NH4NO3, These compounds are addition products of ammonia and the acid. For this reason, their formulas are sometimes written as [H(NH3)]X.
Ammonia The most familiar compound composed ‘of the elements nitrogen and hydrogen, NH3. It is formed as a result of the decomposition of most nitrogenous organic material, and its presence is indicated by its pungent and irritating odor. Ammonia has a wide range of industrial and agricultural applications. Examples of its use are the production
Aspirin The acetyl ester of salicylic acid, also known as 2-(acetyloxy)-benzoic acid and acetylsalicylic acid (see structure below). Aspirin is prepared by the acetylation of salicylic acid with acetic anhydride. Aspirin is effective as an analgesic, antipyretic, and anti-inflammatory drug. It prevents the aggregation of platelets, and there is some evidence that it can prevent