confusing the anode and cathode (1 Viewer)

[mathock]

how can i tell which metal will become the anode and which will become the cathode in a galvanic cell? it has somethign to do with Eo values right?? help

 

[tennille]

the one with a more negative voltage (u know the table) is the anode (oxidation) and the more positive one is hte cathode (reduction). So yeah its hte Eo value thing.

 

[sub]

OIL RIG = oxidation is loss, reduction is gain (in reference to electrons)
E° values are reduction potentials... note the cathode is always the side where reduction occurs. so the greater the E° values the more likely its going to be the cathode.
someone pls agree with me on this, cos im pretty sure its right, but not 100%
thnx

 

[Xayma]

The one higher up on the table will be come the anode, the one lower in the table (the more positive) the cathode.

 

[tina_goes_doo]

Yep, the one higher up on the table (ie the more reactive one)

 

[mr EaZy]

well it all depends on what table ur looking at
ive seen the table where the reverse reactions are shown and stable metales like Au and AG are at teh bottom

 

[aim54x]

REDCAT (reduction cathode)
AN OX (anode oxidisation)
OILRIG (ox is loss reduct is gain)

all u need, i get them right usin these but i ref standard potentials