humanize this ai sentence "In Module 9, I learned two key concepts that deepened my understanding of acids and bases. First, I gained a clearer understanding of the pH scale and how it measures the concentration of hydrogen ions in a solution, helping determine whether a substance is acidic, neutral, or basic. This concept is crucial because it applies to many real-world systems, including the human body and environmental chemistry. Second, I learned about bufferssolutions that resist changes in pH when small amounts of acids or bases are added. Buffers are essential in maintaining stable pH levels in biological systems, such as blood, which must stay within a narrow pH range for proper function. Together, these concepts help explain how chemical equilibrium is maintained in various natural and industrial processes