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 ...

pH is a measurable parameter between the values of 0 and 14, defining the acidity or alkalinity of a solution. Solutions with a pH = 7 are considered neutral, pH < 7 are considered acidic and pH > 7 ...

The pH scale is used to measure the acidity of a fluid. The pH scale ranges from 0 to 14. A pH of 7 is neutral, whereas a pH result below 7 is acidic and above 7 is alkaline. Urine has the widest ...

Søren Peder Lauritz Sørensen, the trailblazing chemist who introduced the pH scale to the world, is celebrated in a Google Doodle. The Danish scientist introduced the scale as a method for testing the ...

The Danish scientist's revolutionary test of acidity and alkalinity is still used today THE distinguished chemist is little known outside of his native Denmark. Here’s what we know about the enigmatic ...

Pure water is neutral, and so is petrol. Litmus indicator solution turns red in acidic solutions and blue in alkaline solutions. It turns purple in neutral solutions. Litmus paper close litmus paperA ...

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 ...

Are your skincare products secretly doing more harm to your skin than good? One beauty expert has set out to discover whether that's the case with several big-name brands by testing the pH levels of ...