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Can you please help me with this, I have done some of it. And can you tell me if

ID: 799485 • Letter: C

Question


Can you please help me with this, I have done some of it. And can you tell me if the ones I did are correct, if not can you correct me. Thank you

Consider the following voltaic cell: Write the equation for the redox reaction that occurs in this cell. In which half-cell does oxidation occur? In which half-cell does oxidation occur? Indicate the direction of flow of the electrons, right Label the anode. Label the cathode. Fe is Anode, Cr is Cathode In which direction do the K+ ions in the salt bridge flow? Which electrode will decrease in mass over the course of the reaction? Calculate E0cell

Explanation / Answer


a) Fe+3 + Cr ---> Cr+3 + Fe


b) Cr----> Cr+3 + 3e-


So oxidation takes place in chromium ( anode ) half cell


c) left


d) Fe is cathode , Cr is anode


e) right


f) cathode


d) Eo cell = Eo cathode - Eo anode


Eo = -0.04 +0.74


Eo=0.70