The Ksp at 298 K for iron(II) fluoride is 2.4 x10-6. (a) Write a half-reaction that gives the likely products of the two-electronreduction of FeF2(s) in water. (b) Use the Ksp value and the standard reduction potential of Fe2+ (aq) to calculate the standardreduction potential for the half-reaction in part (a). (c) Rationalize the difference between the reduction potential in part (a) andthe reduction potential for Fe2+ (aq)

Answer the four questions below related to the spontaneous redox reaction that occurs whenCr(OH)3(s) reacts with NO3–(aq) to produce CrO42–(aq)and NO2–(aq) under basic conditions. Write the balanced net ionic equation, including states of matter, for the overall reaction.

Oxidation of lactate by cytochrome C (represented as cytochrome C (Fe3 +)) to pyruvate is an important biological reaction.Below are the reduction reactions and standard reduction potentials (E °) at pH = 7 and 25 ° C.Pyruvate + 2H + + 2e- = Lactate - (E ° = -0.185 V)Cytochrome C (Fe3 +) + e - = Cytochrome C (Fe2 +) (E ° = 0.254 V) Considering the Gibss free energy and Nernst equations, calculate the following equilibrium ratio (K) at 25 ° C, pH = 7.

21.32 Balance each skeleton reaction, calculate Ell, and state cell> whether the reaction is spontaneous: (a) Cl,(g) + Fe²+(aq) (b) Mn2+(aq) + Co³*(aq) -→ MnO,(s) + Co²*(aq) [acidic] (c) AgCl(s) + NO(g) → CI (aq) + Fe3+(aq) Ag(s) + Cl¯(aq) + NO, (aq) [acidic]