The pH scale measures how strongly acidic or alkaline a solution is using a set of values from pH 0 to pH 14. When pure water is dropped into a solution of universal indicator, the indicator stays ...

Universal indicator is a mixture of a variety of other indicators and can be used to measure the approximate pH of a solution. A more accurate value can be obtained using a pH probe. Figure caption, ...

Acid and Bases pH Experiment (w/ Red Cabbage Indicator) Episode 2 | 4m 36s. A crash course on the basic differences between acids and bases. 11/08/2017 ...