Technical chemistry and processes
Henderson–Hasselbalch equation
Calculates an acidic buffer pH from pKa and [A−]/[HA].
Related calculators
KA and pKa
Converts the acid dissociation constant and its negative decimal logarithm.
Basic acidic buffer
Calculates HA/A− buffer pH from Ka and both form concentrations.
Basic alkaline buffer
Calculates B/BH+ buffer pOH and pH from Kb, pKw, and both form concentrations.
[H+] concentration from pH
Calculates [H+] as 10^(−pH) in the dilute-solution model.
[OH−] concentration from pOH
Calculates [OH−] as 10^(−pOH) in the dilute-solution model.
KB and pKb
Converts the base dissociation constant and its negative decimal logarithm.