5. (2 pts) Balance each of the following equations according to the half-reaction method: (a) NO3-(aq)-...
Chapter 9 59. The following sequence of reactions occurs in the commercial production of aqueous nitric acid: 4NH3(g)+502(g)-4NO(g)+6H2O(1)AH=-907kJ 2NO(g)+O2(g)—2NO2(g)AH--113kJ 3NO2+H2O(1)-2HNO3(aq)+NO(g)AH--139kJ Determine the total energy change for the production of one mole of aqueous nitric acid by this process.
The commercial production of nitric acid involves the following chemical reactions: (a) 4NH3(g)+5O2(g)⟶4NO(g)+6H2O(g) (b) 2NO(g)+O2(g)⟶2NO2(g) (c) 3NO2(g)+H2O(l)⟶2HNO3(aq)+NO(g) How many grams of ammonia must you start with to make 800.00 L of a 0.150 M aqueous solution of nitric acid? Assume all the reactions give 100% yield.
In each redox reaction identify the element undergoing oxidation and the element undergoing reduction. 4NH3(g)+5O2(g)⟶4NO(g)+6H2O(g) In each redox reaction identify the element undergoing oxidation and the element undergoing reduction. O is oxidized, N is reduced N is oxidized, O is reduced N is oxidized, N is reduced O is oxidized, O is reduced 2NO(g)+O2(g)⟶2NO2(g) O is oxidized, N is reduced N is oxidized, O is reduced N is oxidized, N is reduced O is oxidized, O is reduced 3NO2(g)+H2O(l)→2HNO3(aq)+NO(g) O...
5. Balance the following reaction that occurs in base, using the half-reaction method. NO(g) + MnO4-1(aq) ---> NO3-1(aq) + MnO2(s) When this reaction is balanced, there will be (A) OH-1(aq) and (B) H2O(l) in the final balanced equation. (Enter numbers without the plus sign.) 6. 0.122 grams of an unknown triprotic acid was neutralized with 37.2 mL of a 0.125 M NaOH solution. What is the Molar Mass of the unknown acid? Report the answer to three sig figs and...
2. Balance the following redox equations by the ion-electron half-reaction method: (a) (acid solution): MnO (s) + PbO2 (s) → MnO,- + Pb2+ (b) (acid solution): MnO4 + Mn2+ → MnO2 (s) (c) (basic solution): Al (8) + OH → Al(OH) - + H2(g)
Use the half-reaction method to balance each redox reaction occurring in acidic aqueous solution. Cl−(aq)+MnO4−(aq)→Cl2(g)+Mn2+(aq) Express your answer as a chemical equation. Identify all of the phases in your answer.
1. (a) Balance the following half-reactions by the ion-electron half-reaction method: (i) (acid solution) NO3- (aq) + N2O (g) (ii) (acid solution) Fe042- (aq) + Fe3+ (aq) (iii) (base solution) Fe203 () → Fe(OH)2 (S) (iv) (base solution) Cu20 (s) + Cu(OH)2 (S) (b) Which of the above equations are oxidation half-reactions? (c) Give the formulas of the reactants that become oxidized in the course of the reaction.
3. Balance the following redox equations by the ion-electron half-reaction method: (a) (acid solution): Cr0(aq) + U" (aq) → Cr" (aq) +UO; (aq) (b) (acid solution): Cr(s) + O2(g) → Cr* (aq) (C) (basic solution): P. (s) + OH' (aq) → PH; (g) + H2PO2 (aq)
Balance each of the following equations according to the half-reaction method: 1) CN- (aq) + ClO2( aq) —> CNO- (aq) + Cl- (aq) (in acid) 2) MnO4- (aq) +NO2- (aq) → MnO2( s) + NO3 - (aq) (in base) 3) In which species does nitrogen have the highest oxidation number? a) NaNO3 b) HNO2 c) NO2- d) NH3 e) N2
2. Balance the following equations. Identify each of the following reactions as belonging to one of the following categories: precipitation, acid-base (neutralization), or oxidation- reduction (8 points) a. H2SO4 (aq) + Fe(s) → FeSO4(aq) + H2(g) b. Ca(OH)2(aq) +HNO3(aq) → Ca(NO3)2(aq) + H2O(1) c.2 Fe(s) +3 Cl2(g) +2 FeCl3(s) d. AgNO3(aq) + CaCl2(aq) → AgCl(s) + Ca(NO3)2(aq) 3. Write the balanced molecular and net ionic equations for each of the following reactions. Identify the spectator ions. (6 points) a. Solid...