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Ch.19 - Electrochemistry

Chapter 19, Problem 5

What is the line notation for the galvanic cell?

(a) (b) (c) (d)

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Video transcript

well every once in this video, we want to write the shorthand notation for this following electrochemical cell. So a standard cell diagram is always drawn in a way that the animal is always on the left and the cathode is on the right. The electrons are produced at the cathode or the and I'd rather are consumed at the cathode. In other words, in a standard galvanic cell diagram, electrons flow from the left to the right. So since the electrons are being produced at the left, you can see that over here. It's at the anodes and the let's actually write this down as well. So we have this being the A node and for this side over here the C. D. This is electrode being oxidized and dissolved into solution as C. D plus ions are produced. So then the reaction here is that the C. D solid will yield into C. D. Two plus and give us two electrons as well. So the reduction that is taking place on the right hand side right over here, This is the Nickel two plus that reacts with two electrons to yield our neutral nickel solid. So the standard sanitation. So we'll just write this sound of notation here we have the note than the A node ions, then the cathode ions. And then the cathode. Alright, so this double line that drew here, this denotes the phase boundary or the salt bridge. So now that we have all this information we have the node and the cathode and we have this as a template. We can go ahead and write out the sanitation for the falling cell. So then we have our C. D. In its solid state Reacting with c. d. two plus. Then this double line. Then we have our Nickel two plus and the nickel in its solid state. So this right here is going to be my center agitation for the electrochemical cell that's provided in this problem.