UC DAVIS - BIOCHEM NOTES (lectures 1-5) WEAK ACIDS PT 2

net charge how the electrons behave




Weak Acids/Bases (part II)
polyprotic weak acids intermediate
are 9 ions
all 20 aa
pI
a

, when pH pKa 50 50
Phosphate buffers
we do not treed them te4ir see 53 Seger
pKa1
ajadeg
pKa2 pKa3 pg
a.se Disproportionation
2.12 I-1 7.21 12.32 txt
H3PO4 H2PO4 HPO4-2 PO4-3
or a pH pKaTpkaz
intermediate 2haintermediate 2
I ion ion 12 17.21
acid 2
use 4.66
Kb

pKa
2nd
pH intermediate
pkaz
1st
intermediate
pka
use
ka
0 mol OH-