Aquatic Chemistry: Principles of Water Quality and Chemical Equilibrium

Water is the lifeblood of our planet, yet its chemical composition is constantly shifting due to natural and human-influenced processes. Understanding these chemical reactions is essential for managing water quality, treating wastewater, and protecting aquatic ecosystems. In this text-only course, you will develop a solid foundation in the quantitative chemistry of aquatic systems. You will transition from learning basic terminology to performing equilibrium calculations that predict how pollutants, minerals, and gases behave in rivers, lakes, oceans, and groundwater. You will learn to: 1. Understand the foundational principles of chemical thermodynamics and equilibrium in water. 2. Analyze acid-base reactions and buffer systems that regulate the pH of natural aquatic environments. 3. Calculate precipitation-dissolution and coordination reactions to predict mineral solubility. 4. Evaluate reduction-oxidation reactions and their role in nutrient cycling and pollutant degradation. 5. Assess the chemical behavior of modern emerging contaminants, such as PFAS, in aquatic systems. The course begins with core definitions and thermodynamic principles before guiding you through specific reaction types. You will then progress to practical calculations and modern environmental scenarios, all explained through clear, step-by-step written guides and conceptual examples. This course is designed for beginners, environmental science students, and curious learners seeking a structured introduction to water chemistry. Start reading today to unlock the chemical secrets of the world's water systems.