oxidized and the Sm3+ is reduced. Thus the Sm3+ reduction potential is used as is, while
the reverse reaction for Rh, [RhCl 6 ]3− → Rh + 6Cl−, applies and the oxidation potential of
[RhCl 6 ]3− must be used. Then the EMF can be calculated to be (−2.41 V) + (−0.44 V) =
−2.85 V. Note that we have switched the sign in front of the potential for [RhCl 6 ]3−. The
cell is thus electrolytic as written.
marvins-underground-k-12
(Marvins-Underground-K-12)
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