The chemical equation The compound iron(III) nitrite is represented by Fe(NO2)3. One atom of iron, represented by Fe, three atoms of nitrogen, represented by N, and six atoms of oxygen, represented by O, make up the molecule.
The Roman numeral III in the name iron(III) nitrite denotes the iron ion’s plus three charge. A nitrogen atom is connected with three two oxygen atoms, resulting in a total charge of minus one. Three ions of nitrite are required to balance the charge from one ion of iron when the two ions link together (III). Ferric nitrite is another name for iron(III) nitrite. Its molar mass per mole is 193.86 grammes.