Question

30 points total) Potassium ferrocyanide is the inorganic compound with formula Fe(CN) 3.0. This salt forms lemon-yellow monoclinic crystals. Potassium ferrocyanide finds many niche applications in industry. It and the related sodium salt are widely used as anticaking agents for both road salt and table salt. Potassium ferrocyanide is used in the production of wine and citric acid. Potassium ferrocyanide is nontoxic, and is not decomposed to cyanide in the body. The toxicity in rats is low, with lethal dose (LD50) at 6400 mg/kg. Potassium ferrocyanide is produced industrially from hydrogen cyanide, ferrous chloride, and calcium hydroxide, the combination of which affords Ca[Fe(CN)6] 11H30. This solution is then treated with potassium salts to precipitate the mixed calcium-potassium salt Cak [Fe(CN)), which in turn is treated with potassium carbonate to give the tetrapotassium salt. a) Sketch the structure of the primary coordination sphere of potassium ferrocyanide. What is the oxidation state of the iron in this complex? (5 points) CN +2 CN EN ON 74 et CN

this is for part b

Answer 1

(= < (6m) 1.- HO 48 sdn (alil7 lulu Here en in strong ligand, tego ego mg ding name fou (le (en/o)" Metalfe: Symmetry elemente nd tig, eg (n+118-ang (n+1) - tiu Ligand group of ovituds Symmetry: - Aig, Ey, Tiu. (n+1)pitky, (ntys 2133 eg, tig nd .. n 1 L tug aig, trug eg ILGOS nec TV 2 ' Fellow bnan a g" do= 6+12=188 &c: aiguatins estgo 29 s Scanned with y electronic - configurare CamScanner