Practice Worksheet: Names & Formulas of Acids
Review:
 When the anion does NOT contain Oxygen, & is a BINARY acid:
Use the prefix hydro + root of the anion’s name – ic + the word acid
Examples: HCl = hydrochloric acid; HBr = hydrobromic acid
 When the anion contains Oxygen, & is a TERNARY acid:
The name depends on the name of the polyatomic anion. DON’T use
the prefix ‘hydro-’! Examples: H2SO4 has the sulfate anion, so the acid
name will end in -ic: Sulfuric acid. H2SO3 has the sulfite anion, so the
name of the acid will end in -ous: Sulfurous acid.
ATE → IC
ITE → OUS
Write FORMULAS for the following:
Nitric acid
HNO3
Chloric acid
HClO3
Acetic acid
HC2H3O2 (or HCH3COO, or HCH3CO2)
Hydrobromic acid
HBr
Sulfurous acid
H2SO3
Chlorous acid
HClO2
Hydrochloric acid
HCl
Phosphoric acid
H3PO4
Nitrous acid
HNO2
Hydrofluoric acid
HF
Hypochlorous acid
HClO
Hydroiodic acid
HI
Phosphorous acid
H3PO3
Carbonic acid
H2CO3
Perchloric acid
HClO4
Permanganic acid
HMnO4
Sulfuric acid
H2SO4
Hydrocyanic acid
HCN
NAME the following :
HClO
H3PO4
HCl
H3BO3
H2SO4
HNO2
HI
HC2H3O2
HF
H3PO3
HCN
HClO3
H2CO3
H2SO3
HClO2
HNO3
HBr
Hypochlorous acid
Phosphoric acid
Hydrochloric acid
Boric acid
Sulfuric acid
Nitrous acid
Hydroiodic acid
Acetic acid
Hydrofluoric acid
Phosphorous acid
Hydrocyanic acid
Chloric acid
Carbonic acid
Sulfurous acid
Chlorous acid
Nitric acid
Hydrobromic acid