Selected Polyatomic Ions

Vocabulary flashcards covering names, chemical formulas, and formula weights for selected polyatomic ions.

Hydronium

Polyatomic ion with the formula $H_3O^+$ and a formula weight of $19.02$.

Ammonium

Polyatomic ion with the formula $NH_4^+$ and a formula weight of $18.04$.

Acetate

Polyatomic ion with the formula $CH_3COO^-$ and a formula weight of $59.04$.

Cyanide

Polyatomic ion with the formula $CN^-$ and a formula weight of $26.02$.

Carbonate

Polyatomic ion with the formula $CO_3^{2-}$ and a formula weight of $60.01$.

Bicarbonate

Polyatomic ion with the formula $HCO_3^-$ and a formula weight of $61.02$.

Oxalate

Polyatomic ion with the formula $C_2O_4^{2-}$ and a formula weight of $88.02$.

Hypochlorite

Polyatomic ion with the formula $ClO^-$ and a formula weight of $51.45$.

Chlorite

Polyatomic ion with the formula $ClO_2^-$ and a formula weight of $67.45$.

Chlorate

Polyatomic ion with the formula $ClO_3^-$ and a formula weight of $83.45$.

Perchlorate

Polyatomic ion with the formula $ClO_4^-$ and a formula weight of $99.45$.

Chromate

Polyatomic ion with the formula $CrO_4^{2-}$ and a formula weight of $115.99$.

Dichromate

Polyatomic ion with the formula $Cr_2O_7^{2-}$ and a formula weight of $215.99$.

Permanganate

Polyatomic ion with the formula $MnO_4^-$ and a formula weight of $118.93$.

Nitrite

Polyatomic ion with the formula $NO_2^-$ and a formula weight of $46.01$.

Nitrate

Polyatomic ion with the formula $NO_3^-$ and a formula weight of $62.00$.

Peroxide

Polyatomic ion with the formula $O_2^{2-}$ and a formula weight of $32.00$.

Hydroxide

Polyatomic ion with the formula $OH^-$ and a formula weight of $17.01$.

Phosphate

Polyatomic ion with the formula $PO_4^{3-}$ and a formula weight of $94.97$.

Thiocyanate

Polyatomic ion with the formula $SCN^-$ and a formula weight of $58.08$.

Sulfite

Polyatomic ion with the formula $SO_3^{2-}$ and a formula weight of $80.06$.

Sulfate

Polyatomic ion with the formula $SO_4^{2-}$ and a formula weight of $96.06$.

Hydrogen Sulfate

Polyatomic ion with the formula $HSO_4^-$ and a formula weight of $97.07$.

Thiosulfate

Polyatomic ion with the formula $S_2O_3^{2-}$ and a formula weight of $112.12$.