A2 (2pt) Latimer diagram for the reduction of N₂ to NH4* in acidic solution is given below. (a,1pt) Please write out the complete half reaction for each of three adjacent couples. (b,0.5pt) Calculate E°(N₂/NH†). (c,0.5pt) Identify the most difficult step in reducing N₂ to NH4+, and rationalize your answer concisely. -1.87 1.41 1.28 N21 NH3OH N₂Hs + NH

Calculate the E0 for the reaction between S2- and Fe3+ that yields SO42- and Fe2+

What are the oxidation and reduction half-reactions and the balanced overall reaction for each of the following processes:

show full and complete procedure HANDWRITTEN only

Give a clear explanation handwritten answer..

19. If you want to add the values that are in cells Cl and C2 (93 and 14 respectively), why would you use cell references in the formula (=C1+C2) instead of just writing the formula like this: =93+14? (a) The formula is more professional looking (b) The formula by cell reference will give more accurate answer (c) The formula result will automatically update when cell values change (d) So that values of cells Cl and C2 will only be used for positive integers

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Show formulas and calculations. Given a solution with (A) or (B), which solution is more reducing? (A)     solution with 20 mM sufide (HS-; assume S0 as product of sulfide oxidation). (B)     solution with 40 mM Mn2+ (assume MnO2 as product of Mn(II) oxidation).

Redox Problem.Given reaction between dissolved Fe2+ and elemental sulfur (S0) to form hematite (Fe2O3) and sulfide HS-    Fe2+ +  S0 -->  Fe2O3 +  HS- (a) What the oxidant and reductant in this reaction? You must determine half-reactions and balance the reaction.   (b) Is this reaction thermodynamically favorable?   (c) Would this HS- to react readily with Fe2O3 (reverse of the reaction)?