The pH scale is a measure of the acidity or alkalinity of a solution. It ranges from 0 to 14, with 7 considered neutral. A pH value below 7 indicates acidity, with lower values representing stronger acidity.
Values above 7 indicate alkalinity, with higher numbers indicating stronger alkalinity. The scale is logarithmic, meaning each unit change represents a tenfold difference in acidity or alkalinity. It is widely used in chemistry, biology, and environmental science to quantify the acidity or basicity of substances like water, soil, and various chemical solutions.
