strong and weak acids, weak and strong bases, negligible acids and bases
HCl
strong acid
H2SO4
strong acid
HNO3
strong acid
H3O+
strong acid
HSO4-
weak acid
H2SO3
weak acid
HS-
negligible acid/ weak base
HF
weak acid
CH3COOH
weak acid
H2CO3
weak acid
H2S
weak acid
HSO3-
weak acid
H2PO4-
weak acid/ negligible base
HCN
weak acid
NH4+
weak acid
HCO3-
weak acid
HPO4^2-
weak acid
H2O
weak acid/ weak base
OH-
negligible acid/ strong base
Cl-
negligible base
NO3-
negligible base
SO4^2-
weak base
HSO3-
weak base
H2PO4-
weak base
F-
weak base
CH3COO-
weak base
HCO3-
weak base
SO3^2-
weak base
HPO4^2-
weak base
CN-
weak base
NH3
weak base
CO3^2-
weak base
PO4^3-
weak base
S^2-
strong base
O^2-
strong base