Asked by Hannah
From the indicated voltages for the voltaic cell pictured, determine the standard electrode potential, E°M3+/M, if the metal, M, is each of the following.
description on the image:
in the left beaker there is one Cr3+ and one Cr2+ on the right beaker there is 'M'3+
the left one is oxidation the right is reduction.
heres the given:
La, E°cell = -1.96 V
so i have to find the Voltage of La i got -1.54 but it was wrong. don't you just use the equation
-1.96 V= .424V(oxidation potential for the Cr2+... equation) + x
and solve for x??
description on the image:
in the left beaker there is one Cr3+ and one Cr2+ on the right beaker there is 'M'3+
the left one is oxidation the right is reduction.
heres the given:
La, E°cell = -1.96 V
so i have to find the Voltage of La i got -1.54 but it was wrong. don't you just use the equation
-1.96 V= .424V(oxidation potential for the Cr2+... equation) + x
and solve for x??
Answers
Answered by
DrBob222
What is La? Lanthanum. One of the various metals to plug into the problem? Do you want La^3+ + e ==> La^2+ or some other?
Anyway,
Yes, I think you do that for the equation I think you misplaced a sign.
Ecell = Eoxdn + Eredn
=-1.96 = 0.424 + X
X = -1.96-.424 = -2 something.
Anyway,
Yes, I think you do that for the equation I think you misplaced a sign.
Ecell = Eoxdn + Eredn
=-1.96 = 0.424 + X
X = -1.96-.424 = -2 something.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.