Hi Steve,
Q1) The galvanic cell described by:
Zn(s)|Zn2+(aq)||Cu2+(aq)|Cu(s)
has a cell potential of 1.101 volts. Given that Zn(s) -> Zn2+(aq) + 2e- has an oxidation potential of 0.762 volts, determine the reduction potential for Cu2+ in volts.
Is it just 1.101 - 0.762 = 0.388??
Q2)
Given this system:
3Ag(s) + NO3-(aq) + 4H+(aq) -> 3Ag+(aq) + NO(g) + 2H2O(l)
Anode reaction:
Ag(s) -> Ag+(aq) + 1e- Eo = -0.799 V
Cathode reaction:
NO3-(aq) + 4H+ + 3e- -> NO(g) + 2H2O(l) Eo = 0.964 V
Determine the standard cell potential in volts.
Is it 0.964 + 0.799 = 1.763??
They look too easy so I don't think I got them right. Are they?
Thanx |
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