Chemistry
Basic

pH

Acidity from hydrogen-ion concentration.

Formula

pH=log10[H+]pH = -\log_{10}[H^+]

Variables

[H^+]H⁺ concentration (mol/L)

Example

pH of 0.01 M acid = 2

Did You Know?

Each pH unit is a tenfold change — stomach acid (pH 2) is about 100,000 times more acidic than blood (pH 7.4).