Acid/base indicators are described and used to identify substances as acids or bases. Indicators and the pH Scale: Acid/base indicators are described and used to identify substances as acids or bases.

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.

The pH scale that is widely accepted and used by scientists didn't actually exist until 1909. Before then scientists had to rely on using adjectives to describe the acidity or basicity of a substance ...

BAKERSFIELD, Calif. (KERO) — You may have to think back to chemistry class to remember much about the pH scale, but it can have a big impact on the health of your garden. "What happens is there's a ...

When Arnold Beckman, a professor of analytical chemistry at the California Institute of Technology, was asked to devise a way to measure acidity in citrus fruit, the resulting “acidometer” ...

The Danish chemist was the head of Carlsberg Laboratory at the time of the scale's creation, and died in 1939 at 71 years old. Jennifer Bisset was a senior editor for CNET. She covered film and TV ...