What is the pH level of pure water at 25°C?

Pure water at 25°C has a pH level of 7, which is considered neutral on the pH scale. The pH scale ranges from 0 to 14, where values below 7 indicate acidity, and values above 7 indicate alkalinity. In pure water, the concentration of hydrogen ions (H⁺) is equal to the concentration of hydroxide ions (OH⁻), resulting in a balanced state that reflects a neutral pH. At this temperature, the self-ionization of water produces an equal concentration of H⁺ and OH⁻ ions, leading to this neutral pH value of 7. This property of water is essential for many chemical and biological processes, emphasizing its role as a universal solvent.