Question 3 (1 point) Calculate Eºcell for the redox reaction below if K = 50.9: A(s)...
3 pts Question 16 Calculate Eºcell for the following balanced redox reaction in acidic solution: 3 MnO2(s) + 2 Cr(s) + 12H + 3 Mn2+ + 2 Cr3+ + 6H2O (acidic) O +.49 V +5.17 V 0 - 49 V 0 -1.97 V O +1.97 V Question 17 3 pts For the reaction in the previous problem, what is AG°298? - 1140 kJ O +1140 kJ +284 kJ O-190 kJ 0-284 kJ
For the following balanced net redox reaction, the Eºcell is 1.04 V and n = 2. Sn2+(aq) + Mn (s) —+Sn(s) + Mn2+(aq) Calculate the cell potential at 25°C when [Sn2+) = 1.97 M and [Mn2+1 = 1.73 x 10-2 M. 0.900 V 1.04V 0.980 V 1.10 V
Question 2 (1 point) What is Eºcell for the cell reaction: 2Cr(s) + 3Sn4+(aq) --> 3Sn2+(aq) + 2Cr3+ (aq)? Given: Cr3+(aq) + 3e --> Cr(s); E° = -0.74 V Sn4+(aq) + 2e --> Sn2+(aq); E° = +0.15 V 0 +0.45 V O +0.89 V O 1.93 V 0-0.59 V 0 +0.59 V
Calculate Eºcell for each of the following balanced redox reactions. O2(g) + 2H2O(1) + 4Ag(s) + 40H(aq) + 4Ag+(aq) Express your answer using two significant figures. V AEON O 2 ? cell= Submit Request Answer Part B Br2(1) + 21 (aq) + 2Br (aq) + 12(s) Express your answer using two significant figures. IVO AQ o 2 ? Eºcell= Submit Request Answer Part C PbO2(s) + 4H+(aq) + Sn(s) → Pb2+(aq) + 2H2O(1) + Sn2+(aq) Express your answer using two...
Question 25 (4 points) The standard cell potential (Eºcell) of the reaction below is +1.73 V. The value of AG for the reaction is _____ kJ 3Ni (s) + 2 Au?+ (aq) + 3 Ni2+ (aq) + 2 Au(s) O +5.00x102 O +1.00x103 2140 0-1.00x103 0-5.00x102
Question 15 (1 point) Longer problem Consider the following redox reaction: Ca(s) + Ni2+ (aq) + Ca2+ (aq) + Ni(s) For this reaction E = +2.53 V Calculate the equilibrium constant Kc for this reaction. 2.97 x 1085 1.32 1037 3.37 x 10-86
What is the Eºcell, AG', and K for the following reaction? 12(s) + Mg(s) → Mg2+(aq) +2 1. (aq) You must show your work to get credit. Reduction Half-Reaction E° (V) 12 (s) + 2 e- →21 (aq) +0.535 Mg2+ (aq) + 2 e- Mg(s) -2.37 Which compound is being reduced in the following reaction: H2O2 (aq) + 2 Fe2+ (aq) + 2 H3O+ (aq) → 2 Fe3+ (aq) + 4 H20 (1)
2. Using the information provided, calculate the standard cell potential, Eºcell, for the reaction below: Half-reaction Cr3+ (aq) + 3e- → Cr(s) Fe2+ (aq) + 2e- → Fe(s) Fe3+ (aq) + e- + Fe2+ (s) Sn4+ (aq) + 2e- + Sn2+ (aq) E° (V) -0.74 -0.440 +0.771 +0.154 3Sn(aq) +2Cr(s) →2Cr" (aq) +35n²+ (aq)
6. Calculate the equilibrium constant (K) for the following redox reaction at 25 ?C. Ecell = -0.71 V 2 Al(s) + 3 Mg2+(aq) --> 2 Al3+(aq) + 3 Mg(s
For the balanced redox reaction (2 electrons transferred in the balanced reaction): 2Mn2+ (aq) + PbO2 (s) + H20 (1) + Pb2+ (aq) + 2H+ (aq) + Mn203 (s) 1. Which species is being oxidized, and which species is being reduced? 2. Calculate Eºcell for the reaction. EºMn203/Mn2+ - 1.485V; EºPb02/Pb2+ - 1.458 V 3. Is the reaction spontaneous as written? 4. Calculate AGº for the reaction. 5. Calculate for the reaction at 25°C.