Question

The equation below represents the titration that will he completed in Experiment 20B. It is sometimes called n redox titration because an oxidation reaction occurs. What is the reducing agent? The oxidizing reagent? Explain your answers. 16 H^+ + 5 C_2 O_4^2- + 2 Mn O^-_4 rightarrow 10 CO_2 + 2 Mn^2+ + 8 H_2 O In solution, the ferrioxalate complex undergoes photoreduction. The complex absorbs a photon of light and decomposes to form Fe(C_2 O_4}^2-_2 and CO_2. What are the initial and final oxidation states of the iron during this process?

Answer 1

2) 16H+ +56,00 2 + 2 mno ū - loco +2Mn +2 +8 H₂O 2 +2 22 +4 (-2)=-2 x = +3 (+3 re+4 (-2)=-1 2 = + 7 +2(-2) - 0 x = +4 e+y Mnt Mn +7 16ht + 56052 + 2m nou ū - loco + 2 Mn+2 +8 H₂O +3 oxidation Reduction Reducing Agent Oxidizing Agent C2042 Mnou de 3) Ferrioxalate [Fe (Cz Ou)3] x + 3(-2) =-3 = x=+3 I Fe (C200), 7 7 2 + 26-2) =-2 -2 x= +2 [fecçow),J' — [Pecccou? j*+.com | initical oxidation state +3 fineel oxidation stete +2 +2