Introduction In this lab, the purpose is to synthesize a coordination compound in which iron (III) coordinates with oxalate ion. Through an oxidation-reduction reaction, iron (II) ammonium sulfate hydrated salt, hydrogen peroxide, and oxalic acid will react to form iron (III) oxalate. Coordination compounds such as iron (III) oxalate have at least one complex ion, which is made up of a metal ion and ligands. The metal ion, usually a transition metal, usually carries a charge of +2 or +3 in an aqueous solution. The ligands are molecules or anions that are good Lewis base, capable of donating electron pairs to the electron deficient metal ion. A monodentate ligand is one that can donate a single pair of electrons to the metal ion to form a complex ion. Oxalate ion, however, is bidentate because it can bond at two sites around the metal ion instead of just one. Ligands that are capable of binding at more than one site are also known as chelate. These different numbers of donated electron pairs are what constitute the metal’s
This is the end of the preview.
access the rest of the document.