- #1
AGNuke
Gold Member
- 455
- 9
A Galvanic Cell is given. Write its Anode and Cathode half reactions, complete cell reaction and thus determine if the given is concentration cell.
[itex]Pt|O_2(1\; atm)|NaO\! H(10^{-3}M)||H_2SO_4(0.5M)|O_2(1\;atm)|Pt[/itex]
I know that at anode, Oxygen will get oxidised, maybe from NaOH solution and at cathode, Oxygen will get reduced.
Here's what I think of anodic reaction
[itex]2O\!H^-\rightarrow 2H^++O_2+4e^-[/itex]
And the mighty cathodic reaction
[itex]O_2+4e^-+2H^+\rightarrow 2O\!H^-[/itex]
And thus, this cell is just a concentration cell (i.e. E°(cell) = 0)
Am... I right?![Roll Eyes :rolleyes: :rolleyes:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
[itex]Pt|O_2(1\; atm)|NaO\! H(10^{-3}M)||H_2SO_4(0.5M)|O_2(1\;atm)|Pt[/itex]
I know that at anode, Oxygen will get oxidised, maybe from NaOH solution and at cathode, Oxygen will get reduced.
Here's what I think of anodic reaction
[itex]2O\!H^-\rightarrow 2H^++O_2+4e^-[/itex]
And the mighty cathodic reaction
[itex]O_2+4e^-+2H^+\rightarrow 2O\!H^-[/itex]
And thus, this cell is just a concentration cell (i.e. E°(cell) = 0)
Am... I right?