pH Larutan Asam Basa

pH = - log [H⁺]

pOH= - log [OH^-]

pK_w = - log K_w

pK_a = - log K_a

pK_b = - log K_b

Hubungan antara pH, pOH, dan pK_w dapat dijabarkan sebagai berikut:

K_w = [H⁺] [OH^-] = 10^-14

log K_w = log [H⁺] + log [OH^-] = log 10^-14

-log K_w = -log [H⁺] - log [OH^-] = -log 10^-14

pK_w = pH + pOH = 14