However, water comes from different sources, like tap water or river water. These water samples have other substances dissolved in them. They might show up as slightly acidic or slightly alkaline ...

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.

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 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 ...

Google today honours Danish biochemist Soren Peder Lauritz Sorensen for his revolutionary work in introducing to the scientific community, the concept of the pH scale. The pH scale is a concept that ...

The Google Doodle continues its tradition of honouring obscure but important figures from history, today celebrating Danish chemist S.P.L. Sorensen. You may not have heard of Søren Peder Lauritz ...

Beer wasn’t always so consistant. Even the same producer’s brews could be wildly different in quality (Getty/iStock) Do you remember any chemistry from your schooldays? Dipping litmus paper into a ...

Making salts from metals and metal compounds Making salts by neutralisation How to make copper sulfate crystals The pH scale Concentrations and strengths of acids - Higher ...

S. P. L. Sørensen, the Danish chemist who notably devised the method for testing the acidity or alkalinity of a substance known as the pH scale, has been celebrated in the Google Doodle for May 29, ...