pH: Quick Facts

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Facts

Also Known As	potential of hydrogen • hydrogen ion concentration

Photos and Videos

A strip of indicator paper, turned blue, rests on a circular pH color chart, showing the liquid tested is alkaline.

A strip of pH paper rests on the rim of a container holding a yellow liquid, with a color comparison chart and several unused pH strips nearby.

How is the pH scale used to measure acids and bases?

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Topics

Eh–pH diagram isoelectric point quinhydrone electrode pH meter matter radiation radioactivity cluster isomerism temperature elasticity entropy polarity heat yield strength

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