4.4.3: The acid dissociation constant Flashcards
1
Q
The acid dissociation constant
A
Ka
2
Q
Units of Ka
A
moldm-3
3
Q
Ka equation
A
Ka = [H+][A-]/[HA]
4
Q
Simplified Ka equation for weak acids
A
Ka = [H+]2 /[HA]
5
Q
The logarithmic constant
A
pKa
6
Q
pKa equation
A
-log10 (Ka)
7
Q
Ka equation including pka
A
Ka= 10(-pka)
