Give systematic names for the following compounds:
\pmb{(a)} LiNO_{3}\quad\quad \pmb{(b)} KHSO_{4} \quad\quad \pmb{(c)} CuCO_{3}\quad\quad \pmb{(d)} Fe(ClO_{4})_{3}STRATEGY
The names and charges of the common polyatomic ions must be memorized. Refer to Table 2.3 if you need help
(a) Lithium nitrate Lithium (group 1A) forms only Li^{+} the ion and does not need a Roman numeral.
(b) Potassium hydrogen sulfate Potassium (group 1A) forms only the K^{+} ion.
(c) Copper(II) carbonate The carbonate ion has a -2 charge, so copper must be +2 A Roman numeral is needed because copper, a transition metal, can form more than one ion.
(d) Iron(III) perchlorate There are three perchlorate ions, each with a -1 charge, so the iron must have a +3 charge.
TABLE 2.3 Some Common Polyatomic Ions
Formula | Name | Formula | Name |
Cation | Singly charged anions (continued) | ||
NH^{+}_{4} | Ammonium | NO^{-}_{2} | Nitrite |
Singly charged anions | NO^{-}_{3} | Nitrate | |
CH_{3}CO^{-}_{2} | Acetate | Doubly charged anions | |
CN^{-} | Cyanide | CO^{2-}_{3} | Carbonate |
ClO^{-} | Hypochlorite | CrO^{2-}_{4} | Chromate |
ClO^{-}_{2} | Chlorite | Cr_{2}O^{2-}_{7} | Dichromate |
ClO^{-}_{3} | Chlorate | O^{2-}_{2} | Peroxide |
ClO^{-}_{4} | Perchlorate | HPO^{2-}_{4} | Hydrogen phosphate |
H_{2}PO^{-}_{4} | Dihydrogen phosphate | SO^{2-}_{3} | Sulfite |
HCO^{-}_{3} | Hydrogen carbonate (or bicarbonate) | SO^{2-}_{4} | Sulfate |
HSO^{-}_{4} | Hydrogen sulfate (or bisulfate) | S_{2}O^{2-}_{3} | Thiosulfate |
OH^{-} | Hydroxide | Triply charged anion | |
MnO^{-}_{4} | Permanganate | PO^{3-}_{4} | Phosphate |