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i was trying to do 1.82V-0.53V but not in the answer choice... can anyone explain this for me thank you!
Yeah thats true. To make that happen I guess Iodine is the anode? But that leads to answer that is not even one of the options? I am stumped lol We need @orgoman22 to the rescue. Like always.@Ashish Isn't the Ecell for a galvanic cell always positive though? Thats what I have in my notes at least...
In a galvanic cell the overall cell voltage must be positive. You are given 2 half reactions that are both reductions, thus one of them must be reversed. Keeping in mind that the overall answer MUST be positive. Keep the first equation and reverse the 2nd equation. 1.82 - .53 will do the job. I suggest you consult a general chemistry textbook written by a PhD chemist to reinforce the concept.View attachment 204334
i was trying to do 1.82V-0.53V but not in the answer choice... can anyone explain this for me thank you!
Hey, so does the opposite apply to electrolytic cells?In a galvanic cell the overall cell voltage must be positive. You are given 2 half reactions that are both reductions, thus one of them must be reversed. Keeping in mind that the overall answer MUST be positive. Keep the first equation and reverse the 2nd equation. 1.82 - .53 will do the job. I suggest you consult a general chemistry textbook written by a PhD chemist to reinforce the concept.
Hope this helps..
Dr. Romano
In electrolysis the cation will be reduced and the anion will be oxidized. The potentials given will reinforce the fact that the reaction is non-spontaneous (<0).Hey, so does the opposite apply to electrolytic cells?
That is correct, keep hammering away you are on the right track.Hey, so does the opposite apply to electrolytic cells?