The pH scale measures the acidity or alkalinity of a substance, ranging from 0 to 14, with values below 7 representing acidity, above 7 representing alkalinity, and 7 representing neutrality.

There’s a time for tongue-puckering lambics and Berliner Weisses, but most beer drinkers want something a little more balanced for day-to-day sipping. Thanks to the pH scale that Tuesday’s Google ...

The pH scale is used to measure acidity and alkalinity levels. It measures the presence of positively and negatively charged hydrogen ions in a particular solution. The higher the hydrogen ions, the ...

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 ...

A food with a pH below 4.6 is high in acid. This includes many citrus fruits, plums, grapes, pomegranates, and several other fruits. Tomatoes, which are technically a fruit, are also acidic. Defining ...

As the world's oceans turn more acidic, a cheaper and more accurate sensor would be useful—inspiring a new $1-million award Basic chemistry teaches that dissolving carbon dioxide in seawater will ...

What do depression, Alzheimer's disease and autism have in common? Well, according to new research, they may all be underpinned by an increasing level of acidity in our brains. Scientists have long ...