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please helpppp!!! 7) The standard cell potential (E cell) f for the reaction below i ls...
QUESTION 45 For the reaction Ag+ (aq) + Cr (aq) - AOCI (5) Given the following table of thermodynamic data, Substance AHF (k]/mol) S (I/mol.K) Ag+ (aq) 105.90 73.93 a- (aq) -167.2 56.5 AgCl (5) -127.0 96.11 determine the temperature at which the reaction becomes spontaneous O 1640 K O 1914 K 0 432K O 850K O 522K QUESTION 46 What is the low for a solution at 25°c that has a pH of 8 647 O 1.2 x 10-10...
nF 30. The standard cell potential (Ecell) of the reaction below is +0.126 V. The value of AG° for the reaction is kJ/mol. Pb2+ (aq)+ H2 (g) Pb (s)2H (aq) E) -50.8 D)+12.6 C)-12.6 B) +24.3 A) -24.3
The standard cell potential (E°cell) of the reaction below is -0.55 V. The value of Δ G° for the reaction is ________ J/mol. I2 (s) + 2Br- (aq) → 2I- (aq) + Br2 (l) The standard cell potential (E°cell) of the reaction below is -0.55 V. The value of G° for the reaction is ________ J/mol. I2 (s) + 2Br- (aq) 2I- (aq) + Br2 (l) 5.5 ⋅ 10-6 1.1 ⋅ 105 0.55 0.54 none of the above
The standard cell potential (E°cell) of the reaction below is -0.55 V. The value of Δ G° for the reaction is ________ J/mol. I2 (s) + 2Br- (aq) → 2I- (aq) + Br2 (l)
53-54 53) The standard cell potential (E®cell) of the reaction below is -0.55 V. The value of AGº for the reaction is J/mol. 12 (s) + 2Br- (aq) → 21- (aq) + Br2 (1) A) 0.55 B) 5.5 x 10-6 C) 1.1 x 105 D) 0.54 E) none of the above 54) The standard cell potential (Eºcell) of the reaction below is +1.34 V. The value of AGº for the reaction is kJ/mol 3 Cu (s) + 2 MnO4- (aq)...
Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25�C. (The equation is balanced.) Sn(s) + 2 Ag+(aq) ? Sn2+(aq) + 2 Ag(s) Sn2+(aq) + 2 e- ? Sn(s) E� = -0.14 V Ag+(aq) + e- ? Ag(s) E� = +0.80 V a)-1.08 V b)+1.74 V c)-1.74 V d)+0.94 V e)+1.08 V
8. The standard cell potential (E°cell) for the reaction below is +1.10 V. Calculate the cell potential for this reaction when the concentration of [Cu2+] = 1.0 × 10-5 M and [Zn2+] = 3.5 M. Zn (s) + Cu2+ (aq) → Cu (s) + Zn2+ (aq)
e) 20 g 4. Referring to the table of Standard Cell Potentials below, determine the standard cell potential for the following reaction: Pb2+(aq) + 2 Cl(aq) ---> Pb(s) + Cl2 E° -0.126 +1.360 Pb2+ (aq) + 2e ---> Pb (s) Cl2 + 2e- ---> 2 cl-(aq) a) +1.486 b) +1.468 c) +1.234 d) -1.234 e) -1.486
When the following redox reaction is carried out in a voltaic cell, the standard cell potential, E°cell, is 0.93 V. What is ΔG° for this reaction at a temperature of 298.15 K? Pb(s) + 2 Ag+(aq) → Pb2+(aq) + Ag(s) A. -180 kJ B. -90 kJ C. 90 kJ D. 180 kJ
use tabulated standard electrode potential to calculate the standard cell potential for the reaction occurring in an electrochemical cell at 25 C. (The equation is balanced.) 3Ni^2+(aq)+2Cr(s)--->3Ni(s)2Cr^3+(aq) Express your answer to two significant figures and include the appropriate units. em 26 E (V) -0.45 -0.50 -0.73 -0.76 -1.18 Standard reduction half-cell potentials at 25°C Half-reaction E° (V) Half-reaction Aul+ (aq) + 3e +Au(s) 1.50 Fe2+ (aq) + 2eFe(s) Ag+ (aq) +e-Ag(s) 0.80 Cr3+ (aq) + Cr²+ (aq) Fe+(aq) + 3e...