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 the measure of hydrogen ions in water-based liquids. The pH scale shows the leaves of acidity and alkalinity of water and similar liquids. There are some important things to understand about the ...

Saliva that is properly pH balanced (6.2 to 7.6) helps maintain a healthy mouth and protect your teeth. The acronym pH stands for potential hydrogen. It’s used to describe the chemical acidity level ...

Vinegar’s pH is low, meaning it’s acidic, but it can change if additional ingredients are added. If you dilute vinegar with water, its acidity lessens, making its pH level rise. The pH level of a ...