Question

11. Based upon the standard reduction potentials below, which reaction will run spontaneously (to the right) at 25 °C and with 1 M concentrations? (Note: the sulfate ion is SO42-.) Ni2+ + 2 e- ? Ni E° = -0.26 V Cd2+ + 2 e- ? Cd E° = -0.40 V Cr3+ + 3 e- ? Cr E° = -0.74 V Zn2+ + 2 e- ? Zn E° = -0.77 V Mn2+ + 2 e- ? Mn E° = -1.19 V (a) Cr(s) + ZnSO4(aq) (b) Cd(s) + MnSO4(aq) (c) Ni(s) + CdSO4(aq) (d) Cr(s) + MnSO4(aq) (e) Zn(s) + NiSO4(aq)

          11. Based upon the standard reduction potentials below, which reaction will run spontaneously (to the right) at 25 °C and with 1 M concentrations? (Note: the sulfate ion is SO42-.)

Ni2+ + 2 e- ? Ni E° = -0.26 V
Cd2+ + 2 e- ? Cd E° = -0.40 V
Cr3+ + 3 e- ? Cr E° = -0.74 V
Zn2+ + 2 e- ? Zn E° = -0.77 V
Mn2+ + 2 e- ? Mn E° = -1.19 V

(a) Cr(s) + ZnSO4(aq)
(b) Cd(s) + MnSO4(aq)
(c) Ni(s) + CdSO4(aq)
(d) Cr(s) + MnSO4(aq)
(e) Zn(s) + NiSO4(aq)

11. Based upon the standard reduction potentials below, which reaction will run spontaneously (to the right) at 25 °C and with 1 M concentrations? (Note: the sulfate ion is SO42-.)

Ni2+ + 2 e- ? Ni E° = -0.26 V
Cd2+ + 2 e- ? Cd E° = -0.40 V
Cr3+ + 3 e- ? Cr E° = -0.74 V
Zn2+ + 2 e- ? Zn E° = -0.77 V
Mn2+ + 2 e- ? Mn E° = -1.19 V

(a) Cr(s) + ZnSO4(aq)
(b) Cd(s) + MnSO4(aq)
(c) Ni(s) + CdSO4(aq)
(d) Cr(s) + MnSO4(aq)
(e) Zn(s) + NiSO4(aq)

Added by Christina H.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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Solved by Expert David Collins

04/16/2022

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Based upon the standard reduction potentials below, which reaction will run spontaneously (to the right) at 25 °C and with 1 M concentrations? (Note: the sulfate ion is SO42-) Ni2+ + 2e- → Ni E° = -0.26 V Cd2+ + 2e- → Cd E° = -0.40 V Cr3+ + 3e- → Cr E° = -0.74 V Zn2+ + 2e- → Zn E° = -0.77 V Mn2+ + 2e- → Mn E° = -1.19 V (a) Cr(s) + ZnSO4(aq) (b) Cd(s) + MnSO4(aq) (c) Ni(s) + CdSO4(aq) (d) Cr(s) + MnSO4(aq) (e) Zn(s) + NiSO4(aq)