Answer:
pH is a measure of the acidity or basicity of a solution. It is a logarithmic scale that ranges from 0 to 14, where 0 represents the most acidic, 7 is neutral, and 14 is the most basic. The pH of a solution is determined by the concentration of hydrogen ions (H+) present in the solution. A low pH indicates a high concentration of hydrogen ions, which means the solution is acidic. On the other hand, a high pH indicates a low concentration of hydrogen ions, which means the solution is basic (also known as alkaline). pH is an important concept in chemistry, biology, and many other fields, as it can affect the properties and behavior of substances in various ways.