Answers;
The cytochrome c1(Fe3+) half cell reaction undergo reduction,its standard reduction potential is higher.The lipoic acid will undergo oxidation.The overall cell potential can be calculated by using the equation.
E0 cell = E0 reduction - E0 oxidation
= 0.22V-(-0.29V)
= 0.22V+0.29V
= 0.51V
The standard cell potential is positive,so the reaction is spontaneous.
The following two half-reactions are found in a table of standard reduction potentials: Half-Reaction E cytochrome...
TABLE 13-7 Standard Reduction Potentials of Some Biologically Important Half Half-reaction Ero (V) 0.816 0.421 NO 2H + 2e >NO H20 Cytochrome f(Fcytochromef Fe) 0.365 Fe(CN) (ferricyanide) +eFe(CN)6 0.36 Cytochrome a3 (Fecytochrome az (Fe*>) 035 0.295 Cytochrome a (Fe3 +cytochrome a (F 0.29 Cytochrome c Fcytochrome c (Fe) 0254 Cytochrome cl (Fe3-ㄧ˙-cytochrome cl (Fe2+) 0.22 Cytochrome (Fecytochrome (Fe 0.077 Ubiquinone 2H 2eubiquinol Fumarate+2H+2esuccinate2 2Ht+2e-H2 (at standard conditions, pH0)0.000 Crotonyl-CoA 2H 2e butyryl-CoA Oxaloacetate+2Ht+2e- malate Pyruvate+ 2H 2elactate Acetaldehyde 2H+2e-ethanol FAD...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which of the following is/are true for the overall reaction happening under standard conditions? S+ 2H+ + 2e + H2S E' = -0.243 V Fe3+ + e + Fe2+ E'' - 0.771 V (CHECK THE ONE(S) THAT IS/ARE CORRECT) 1) Fe3+ has a greater affinity for electrons than S. 2) AE'O = 1.014 V for the spontaneous reaction. 3) Fe2+ is the reducing agent. 4)...
Question 2a (1 pt): Alcohol dehydrogenase catalyzes the reversible reaction shown. In the space below, write the two half-reactions for the redox reaction. Then, determine the cell potential (AE) and standard Gibbs free energy change (AG) for the reaction. (Hint: Use Tables 13.7a/b in "Metabolism Overview") Acetaldehyde + NADH+H→ Ethanol + NAD Question 2b (1 pt): Under physiological conditions, the reaction actually proceeds in the direction that has a positive AG. What would be the minimum value of the reaction...
Q7) Using Table 9.1 (page 294) in your textbook and/or in the slides of chapter 9 (online material), determine the standard free energy (AG) for the following reaction in kJ/mol. [Faraday constant = 96.5 kJ/V] [10 points) FADH2 + 1/202 - FAD + 2H+ + H:0 Show detailed calculation. Final answer without clear work will not be considered. TABLE 9.1 Standard Reduction Potentials Redox Half-Reaction 2H+ + 2e" - H a-Ketoglutarate + CO, + 2H+ 2e isocitrate NADP+ + H+...
dDetermine E∘E∘, ΔG∘ΔG∘, and KK for the overall reaction from the balanced half-reactions and their standard reduction potentials.4Fe3++2H2O −⇀↽− 4Fe2++O2+4H+ Assignment Score: Resources Give Up? Hint 1580/1900 Check Answer Attempt 3 K Question 15 of 19 not spontaneous spontaneous Determine E. AG°, and K for the overall reaction from the balanced half-reactions and their standard reduction potentials. 4 Fet2H2O 4Fe2 +02 +4H Fe e Fe2 E 0.771 V O22 H2e H,O EC 1.229 V E = V К- Is the...
Using the following standard reduction potentials Fe3+(aq) + e- → Fe2+(aq) E° = +0.77 V Pb2+(aq) + 2 e- → Pb(s) E° = -0.13 V calculate the standard cell potential for the galvanic cell reaction given below, and determine whether or not this reaction is spontaneous under standard conditions. Pb2+(aq) + 2 Fe2+(aq) → 2 Fe3+(aq) + Pb(s) Group of answer choices E° = -0.90 V, spontaneous E° = -0.90 V, nonspontaneous E° = +0.90 V, nonspontaneous E° = +0.90...
Using the values listed in the table provided, determine the deltaG associated with teh reaction listed below: NADPH + 1/2O2 + H+ --> NADP+ +H2O (V) Half-Reaction 0.815 O, 2 H 2 e H3O SO 2 H+ 2 e SO H2O 0.48 NO3 2 H 2 e NO3 0.42 Cytochrome a3 (Fe3+) e cytochrome a (Fe2+) 0.385 O2 (g) 2 H+ 2 e 2O2. 0.295 Cytochrome a (Fes e cytochrome a (Fe2+) 0.29 Cytochrome c (Fe3+) e cytochrome c (Fe...
Using the following standard reduction potentials: Fe3+ (aq) + e. → Fe2+ (aq) Eo = +0.77 V Pb2+ (aq) + 2 e. → Pb(s) E。--0.13 V Calculate the standard cell potential for the galvanie cell reaction given below, and determine whether or not this reaction is spostaneous under standard conditions. Pb2+ (aq) + 2 Fe2+ (aq) → 2 Fe3+ (aq) + Pb(s) ⓔ A. E.-0.90 V, nonspontaneous OB. E-0.90 V, spontaneous C. Eo +0.90 V, nonspontaneous OD0.90 V, spontaneous
Selective Reduction The standard reduction potential for the half-reaction: Sn4+ + 2e - Sn2+ is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions, in your text. For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn4+ to Sn2+ but not Sn2+ to Sn. no yes yes yes yes yes Fe — Fe2+ + 2e- Sn2+ Sn4+ + 2e- Sn Sn2+...
Consider the following standard reduction potentials in acid solution:E^o(V)Al3+ + 3e– ? Al(s) –1.66AgBr(s) + e– ? Ag(s) + Br– +0.07Sn4+ + 2e– ? Sn2+ +0.14Fe3+ + e– ? Fe2+ +0.77The strongest reducing agent among those shown above is