Posted by Anna on Saturday, April 16, 2011 at 5:05pm.
Anna, I'll try again--essentially a repost of my response to your earlier electrochemical problem. I don't know the symbolism. You have an Ejcell followed by a combination of two letters (AE). What are those supposed to mean? Without some explanation, you are not likely to get any help on this board on these questions. I don't have a clue.
Using standard reduction potentials, calculate the standard Ecell, emf, for each of the following reactions. State if each reaction is spontaneous or nonspontaneous. (Use the below reactions AS WRITTEN, DO NOT REARRANGE ANY REACTIONS.) You must show the two half-reactions and balance the gain and loss of electrons.
a. H2(g) + I2(s) -> 2H^1+(aq) + 2I^1-(aq)
b. Ni^2+(aq) + 2Ce^5+(aq) -> Ni(s) + 2Ce^4+(aq)
c. 4Ce^3+(aq) -> Ce(s) + 3Ce^4+(aq) (Acid solution)
d. 2Al^3+(aq) + 3Cd(s) -> 2Al(s) + 3Cd^2+(aq)
I am sorry I just deleted the symbolism.
See my response to your later post above.
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