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## pH calculation lectures » list of used symbols

On all pages HA, H_{2}A, H_{3}A denote acids, while BOH, B(OH)_{2}, B(OH)_{3} bases.

C is for analytical concentration. C_{a} and C_{b} stand for analytical concentrations of acid and base respectively. Square brackets denote equilibrium concentration of individual forms.

K_{a} stands for acid dissociation constant, K_{a1}, K_{a2} stand for stepwise dissociation constants, while K_{a12} or K_{a123} stand for overall dissociation constants. K_{b} is base dissociation constant - with all identical modifiers.

K_{aBOH} and K_{bHA} are dissociation constants for conjugate base and acid respectively used whenever I thought there is a risk of confusion.

M stands for mol/L.

log stands always for logarithm base 10.

I am assuming that you are familiar with quadratic equations and your knowledge about logarithms reaches a little bit further than the key on your calculator.