Physical Science: Classification of Acids and Bases

Common Strong Acids

Strong acids are defined by specific chemical compositions and practical applications. Sulfuric acid $H_2SO_4$ is primarily used in batteries, while Nitric acid $HNO_3$ is utilized in the production of explosives. Hydrochloric acid $HCl$ serves as stomach acid in biological systems, and Hydrobromic acid $HBr$ is employed in medicine.

Common Weak Acids

Weak acids are frequently found in food products and specialized industrial processes. Examples include Phosphoric acid $H_3PO_4$ used in processed foods, Carbonic acid $H_2CO_3$ found in sodas, and Acetic acid $HC_2H_3O_2$ which constitutes vinegar. Citric acid $H_3C_6H_5O_7$ is naturally occurring in fruits. Additionally, Hydrogen Sulfide acid $H_2S$ is noted for its rotten egg odor, and Hydrofluoric acid $HF$ is used for glass etching.

Industrial Strong Bases

Strong bases are essential in manufacturing and environmental management. Sodium Hydroxide $NaOH$ is used for making bar soap, whereas Potassium Hydroxide $KOH$ is used for liquid soap. Calcium Hydroxide $CaOH_2$ is applied to farming soil, Magnesium Hydroxide $MgOH_2$ is used as laxatives, and Barium Hydroxide $BaOH_2$ is utilized in wastewater treatment.

Weak Base Formulations

Ammonium Hydroxide $NaOH_4$ is classified as a weak base. Its primary application is in the manufacturing and use of cleaning supplies.