Chemistry — Acids, Bases & Buffers

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

K_a = \frac{[\text{H}^+][\text{A}^-]}{[\text{HA}]}

\text{pH} = \text{p}K_a + \log_{10}\frac{[\text{A}^-]}{[\text{HA}]}

K_w = [\text{H}^+][\text{OH}^-] = 10^{-14}