Wastewater New York State Practice Exam

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What is the chemical formula for sulfuric acid?

H2SO3
H2SO4
H2S
SO2

The correct answer is: H2SO4

The chemical formula for sulfuric acid is indeed H2SO4. This acid is a highly important and widely used substance in various industries, including manufacturing, chemical processing, and wastewater treatment. The formula indicates that each molecule of sulfuric acid consists of two hydrogen atoms, one sulfur atom, and four oxygen atoms. In this structure, the sulfur atom forms double bonds with two of the oxygen atoms and single bonds with the remaining two oxygen atoms, which are each also bonded to a hydrogen atom. This arrangement is key to the chemical properties of sulfuric acid, which include its strong acidic nature, ability to donate protons (H+), and capability to act as a dehydrating agent. This understanding of the chemical structure emphasizes the composition and behavior of sulfuric acid in reactions, particularly its role in creating sulfate ions, which is significant in wastewater treatment processes.