1. Find ΔG in J for: X5+(aq) + 5e- → X(s) E = -0.56 V 2.  2Al(s) + 6H+(aq) → 2Al3+(aq) + 3H2(g) For the above Al-H2 cell, what is the voltage if [Al3+] = 9.4206 M, [H+] = 1.6 M, and the hydrogen pressure is 0.0890 atm. Eo = 1.66 V.

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1. Find ΔG in J for: X5+(aq) + 5e- → X(s) E = -0.56 V

2.  2Al(s) + 6H+(aq) → 2Al3+(aq) + 3H2(g)

For the above Al-H2 cell, what is the voltage if [Al3+] = 9.4206 M, [H+] = 1.6 M, and the hydrogen pressure is 0.0890 atm. Eo = 1.66 V.
 
3.  Use standard reduction potentials (shown below) to calculate the potential of a nickel-cadmium cell that uses a basic electrolyte that has a 0.6 M hydroxide concentration.

Cd(OH)2(s) + 2e- → Cd(s) + 2OH-(aq) Eº = -0.83 V
NiO(OH)s) + H2O(l) + e- → Ni(OH)2(s) + OH-(aq) Eº = 0.52 V
 
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