Henderson-Hasselbalchova enačba

Henderson-Hasselbalchova enáčba [hénderson háselbalhova ~] podaja zvezo med razmerjem deležev protolizirane in neprotolizirane šibke kisline ali baze ter razliko med pH in konstanto kisline (pK_a ) oziroma konstanto baze (pK_b ).

Za šibke kisline (HA) velja:

$p{K}_a-pH={\log }_{10}\frac{[HA]}{[A^{-}]}$

Za šibke baze (B) velja:

$p{K}_b-pOH={\log }_{10}\frac{[H{B}^{+}]}{[B]}$

Literatura

• Lawrence J. Henderson. Concerning the relationship between the strength of acids and their capacity to preserve neutrality. Am. J. Physiol. 1908, 21, 173-179. Predloga:COBISS
• Hasselbalch, K. A. Biochemische Zeitschrift 1916, 78, 112-144.
• Po, Henry N.; Senozan, N. M. Henderson-Hasselbalch Equation: Its History and Limitations. J. Chem. Educ. 2001, 78, 1499-1503. Predloga:COBISS
• de Levie, Robert. The Henderson-Hasselbalch Equation: Its History and Limitations. J. Chem. Educ. 2003, 80, 146.