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A group of students were tasked to perform the metal coupling of iron nail similar to Experiment 3: Corrosion of Metals. They were given two metals, metal Q and metal J, to couple to iron nail. They prepared an agar medium with KgFe(CN)6 and phenolphthalein. Their professor informed them that metal Q forms an orange color while metal j forms maroon color when oxidized. Their professors also gave them the reduction half-reactions for the corresponding metal ions including the reduction of Fe2. 12 + 2e - Fe + 2e- Fe Q?* + 2e-Q O2 + 2H;0 + 4e- 40H Which is the reduction process that occured for Fe nail coupled with metal j? E° =. 1.66 v E° .0.44 v E° =. 0.25 v E° = + 0.40 v A Q2* + 2e - -Q B 02 + 2H20 + 4e- 40H J * + 2e: -) Fe 2* + 2e - Fe

A group of students were tasked to perform the metal coupling of iron nail similar to Experiment 3: Corrosion of Metals. They were given two metals, metal Q and metal J, to couple to iron nail. They prepared an agar medium with KgFe(CN)6 and phenolphthalein. Their professor informed them that metal Q forms an orange color while metal j forms maroon color when oxidized. Their professors also gave them the reduction half-reactions for the corresponding metal ions including the reduction of Fe2. 12 + 2e - Fe + 2e- Fe Q?* + 2e-Q O2 + 2H;0 + 4e- 40H Which is the reduction process that occured for Fe nail coupled with metal j? E° =. 1.66 v E° .0.44 v E° =. 0.25 v E° = + 0.40 v A Q2* + 2e - -Q B 02 + 2H20 + 4e- 40H J * + 2e: -) Fe 2* + 2e - Fe

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.124QP: An aqueous solution of an unknown salt of vanadium is electrolyzed by a current of 2.50 amps for...
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Question 24 A group of students were tasked to perform the metal coupling of iron nail similar to Experiment 3: Corrosion of Metals. They were given two metals, metal Q and metal J, to couple to iron nail. They prepared an agar medium with KgFe(CN)6 and phenolphthalein. Their professor informed them that metal Q forms an orange color while metal J forms maroon color when oxidized. Their professors also gave them the reduction half-reactions for the corresponding metal ions including the reduction of Fe2*. 12* + 2e - Fe2* + 2e-- Fe E° = - 1.66 v E° = - 0.44 v Q2- + 2e-Q O2 + 2H20 + 4e- 40H Which is the reduction process that occured for Fe nail coupled with metal J? E° = - 0.25 v E° = + 0.40 v A Q2* + 2e - -Q B 02 + 2H20 + 4e- 40H Į 2* + 2e: -) Fe 2* + 2e - Fe 1.
Transcribed Image Text:Question 24 A group of students were tasked to perform the metal coupling of iron nail similar to Experiment 3: Corrosion of Metals. They were given two metals, metal Q and metal J, to couple to iron nail. They prepared an agar medium with KgFe(CN)6 and phenolphthalein. Their professor informed them that metal Q forms an orange color while metal J forms maroon color when oxidized. Their professors also gave them the reduction half-reactions for the corresponding metal ions including the reduction of Fe2*. 12* + 2e - Fe2* + 2e-- Fe E° = - 1.66 v E° = - 0.44 v Q2- + 2e-Q O2 + 2H20 + 4e- 40H Which is the reduction process that occured for Fe nail coupled with metal J? E° = - 0.25 v E° = + 0.40 v A Q2* + 2e - -Q B 02 + 2H20 + 4e- 40H Į 2* + 2e: -) Fe 2* + 2e - Fe 1.
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