The following chart depicts the ionization constants (
K
a
) for a number of weak acids. If you had a 1.0-molar solution of each acid, which would have the highest pH?
Acid
K
a
HSO
2
–
1.2 X 10
–2
HNO
2
4.0 X 10
–4
HF
7.2 X 10
–4
HOCl
3.5 X 10
–8
HCN
6.2 X 10
–10
HSO
2
–
HNO
2
HF
HOCl
HCN