What is the range of the pH scale?

The pH scale is a logarithmic scale used to measure the acidity or alkalinity of a solution, with a typical range extending from 0 to 14. A pH of 7 is considered neutral, values below 7 are acidic, and values above 7 are alkaline. This range is established based on the concentration of hydrogen ions in the solution. While there can be substances with pH values lower than 0 or higher than 14 in extreme cases, the conventional range for most practical purposes, including agricultural and environmental applications, is 0 to 14. This makes understanding pH crucial for crop management, as it affects nutrient availability and microbial activity in the soil. Thus, the answer reflecting the pH scale's conventional range is 0 to 14.