November 29, 2015

Homework Help: Chemistry-Plz see this DrBob

Posted by Anna on Saturday, April 16, 2011 at 6:33pm.

I am sorry I do not know what happens the symbolism, so I just deleted the symbols. Is it works for you that deleted the symbols?

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)

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