Soil pH or soil reaction is an indication of the acidity or alkalinity of soil and is measured in pH units. Soil pH is defined as the negative logarithm of the hydrogen ion concentration. The pH scale ...

pH is a measure of how acidic or alkaline a solution is. The diagram below shows what happens to an enzyme when denaturation occurs. Each enzyme has an optimum pH but it also has a working range ...

There are important things to understand about pH and how it relates to water. Some people believe that drinking alkaline water provides health benefits. Learn more about the pH of water here.

A urine pH level test analyzes the acidity or alkalinity of a urine sample. Discover why it's important, what a normal urine pH level is, how to prepare, and more.

The pH scale is a number scale from 0 to 14. It tells us how acidic or alkaline an aqueous solution close aqueous solutionA solution made by dissolving a substance in water. is. The pH scale is ...