Using the Table of Standard Reduction Potentials below, calculate the standard cell potential, Eºcell, for the following
Posted: Mon May 09, 2022 3:25 pm
Using the Table of Standard Reduction Potentials below, calculate the standard cell potential, Eºcell, for the following redox reaction and determine whether this reaction is spontaneous as written under the standard conditions: Cu(s) + Ni2+(aq) Cu2+(aq) + Ni(s). Eºcell = V. (Fill in the bank by entering the number only, with appropriate sign (+ or -). Report with 2 digits after the decimal point). Is the reaction spontaneous? (Fill in the blank by entering Yes or No only).
Standard Reduction Potentials at 25°C Reduction Half-Reaction F2(8) + 2 e 2 F-(aq) H2O2(aq) + 2 H+(aq) + 2 e- 2 H2O(1) MnO, (aq) + 8 H+(aq) + 5 e- Mn2+(aq) + 4H2O(1) Cl2(g) + 2 e- -→ 2 Cl-(aq) Cr,0,2-(aq) + 14 H+(aq) + 6→ 2 Cr3+(aq) + 7 H2O(1) 02(8) + 4 H+(aq) + 4 e- 2 H2O(1) Brz(!) + 2 e- 2 Br(aq) Ag+(aq) + e- Ag(s) Fe3+(aq) + E → Fe2+(aq) 02(8) + 2 H+(aq) + 2 e- H2O2(aq) 12(s) + 2 e- 2 1-(aq) 02(8) + 2 H2O(l) + 4e- -→ 4 OH-(aq) Cu2+(aq) + 2 e- → Cu(s) Sn*+(aq) + 2 e - Sn2+(aq) 2 H+(aq) + 2 e- H28) Pb2+(aq) + 2e- Pb(s) Ni2+(aq) + 2 e Ni(s) Cd2+(aq) + 2 e- Cd(s) Fe2+(aq) + 2 e- Fe(s) Zn2+(aq) + 2 e- Zn(s) 2 H2O(l) + 2 e H2(8) + 2 OH-(aq) A13+(aq) + 3 e- Al(s) Mg2+(aq) + 2 e- - Mg(s) E° (V) 2.87 1.78 1.51 1.36 1.33 1.23 1.09 0.80 0.77 0.70 0.54 0.40 0.34 0.15 0 -0.13 -0.26 -0.40 -0.45 -0.76 -0.83 -1.66 -2.37
Standard Reduction Potentials at 25°C Reduction Half-Reaction F2(8) + 2 e 2 F-(aq) H2O2(aq) + 2 H+(aq) + 2 e- 2 H2O(1) MnO, (aq) + 8 H+(aq) + 5 e- Mn2+(aq) + 4H2O(1) Cl2(g) + 2 e- -→ 2 Cl-(aq) Cr,0,2-(aq) + 14 H+(aq) + 6→ 2 Cr3+(aq) + 7 H2O(1) 02(8) + 4 H+(aq) + 4 e- 2 H2O(1) Brz(!) + 2 e- 2 Br(aq) Ag+(aq) + e- Ag(s) Fe3+(aq) + E → Fe2+(aq) 02(8) + 2 H+(aq) + 2 e- H2O2(aq) 12(s) + 2 e- 2 1-(aq) 02(8) + 2 H2O(l) + 4e- -→ 4 OH-(aq) Cu2+(aq) + 2 e- → Cu(s) Sn*+(aq) + 2 e - Sn2+(aq) 2 H+(aq) + 2 e- H28) Pb2+(aq) + 2e- Pb(s) Ni2+(aq) + 2 e Ni(s) Cd2+(aq) + 2 e- Cd(s) Fe2+(aq) + 2 e- Fe(s) Zn2+(aq) + 2 e- Zn(s) 2 H2O(l) + 2 e H2(8) + 2 OH-(aq) A13+(aq) + 3 e- Al(s) Mg2+(aq) + 2 e- - Mg(s) E° (V) 2.87 1.78 1.51 1.36 1.33 1.23 1.09 0.80 0.77 0.70 0.54 0.40 0.34 0.15 0 -0.13 -0.26 -0.40 -0.45 -0.76 -0.83 -1.66 -2.37