Given the table of pKa values, at a pH of 3.5, which substance(s) exist predominantly in the non-protonated form?
Acid pKa
HNO3 -1.3
HSCN 4.0
HCN 9.4
HOCI 7.4
Acid pKa
HNO3 -1.3
HSCN 4.0
HCN 9.4
HOCI 7.4