Step 4: Fill in the relative half-cell reduction potentials with zinc as the reference electrode using data from the previous steps (Steps 1-3 in Video 2). Zn²+/Zn: vols Cu²+/Cu: Mg2+/Mg: Fe²+/Fe: Step 5: Calculate the expected potentials for the following cells using the half-cell potentials in the table above. Compare them with the measured values (from Video 2) and determine the percent error. Assume that the expected potential is the accepted value. Cell Mg Mg²+||Fe²+ Fe Mg|Mg2+||Cu²+ Cu Fe|Fe²+||Cu²+|Cu CALCULATIONS: Expected Potential Measured Potential Percent Error

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 83AP
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Step 4 and Step 5. Use the tabel I filled out to find out. 

Part A: Measuring Electrochemical Cell Potentials (Video 2 on Canvas)
Steps 1-3: Complete the following diagrams by adding the cell voltage, both half-
reactions and the overall cell reaction from experimental measurements. Indicate the
electrode classification for each metal by circling A for anode or C for cathode.
Volts: 088
Volts: -0.572
Volts: 0.446
Zn
A or C
Cell:
Half: Zn(s)→2
(aq) + Ze
Half: Cu+ 2e
(u (5)
Cell: Zn(s) + Cu)→→ Zn²+ + (u(s)
Volts: 1.017
Mg
or C
Cu
A or C
• Mg + fe ²7.
+2
Half: Mg + Mg
Half: Fe2+2 → Fe
Fe
A or
+ 2e0
+2
Муж + Fe
Zn
A or C
Cell: Mg + 2n
2+
Half: Mg→ Mg ¹ + 2
Half: 2+²+2
Mg
+2
A or C
Mg
A or C
Volts: 1.667
→ 2n
- Mg +² +2n
Cu
A or
Half: Mg Mg+Leº
Half: C220 Co
Cell: Mg + Cut Mg2+ Cu
Zn
A or C
Half: 22n+² +2e
Half: Fe2+ 2Fe (S)
Cell: 2+ Fe22n+²+ Fel
Volts: 0.658
Fe
A or C
Fe
A or C
Fe + Cut_
Cu
A or C
Half: Fe→ +Z + 20°
Half: +² +2e
+2
Cell:
lu
→ Fet² + Cu
Transcribed Image Text:Part A: Measuring Electrochemical Cell Potentials (Video 2 on Canvas) Steps 1-3: Complete the following diagrams by adding the cell voltage, both half- reactions and the overall cell reaction from experimental measurements. Indicate the electrode classification for each metal by circling A for anode or C for cathode. Volts: 088 Volts: -0.572 Volts: 0.446 Zn A or C Cell: Half: Zn(s)→2 (aq) + Ze Half: Cu+ 2e (u (5) Cell: Zn(s) + Cu)→→ Zn²+ + (u(s) Volts: 1.017 Mg or C Cu A or C • Mg + fe ²7. +2 Half: Mg + Mg Half: Fe2+2 → Fe Fe A or + 2e0 +2 Муж + Fe Zn A or C Cell: Mg + 2n 2+ Half: Mg→ Mg ¹ + 2 Half: 2+²+2 Mg +2 A or C Mg A or C Volts: 1.667 → 2n - Mg +² +2n Cu A or Half: Mg Mg+Leº Half: C220 Co Cell: Mg + Cut Mg2+ Cu Zn A or C Half: 22n+² +2e Half: Fe2+ 2Fe (S) Cell: 2+ Fe22n+²+ Fel Volts: 0.658 Fe A or C Fe A or C Fe + Cut_ Cu A or C Half: Fe→ +Z + 20° Half: +² +2e +2 Cell: lu → Fet² + Cu
Step 4: Fill in the relative half-cell reduction potentials with zinc as the reference
electrode using data from the previous steps (Steps 1-3 in Video 2).
Zn²+/Zn: 0volts Cu²+/Cu:
Mg2+/Mg:
Fe²+/Fe:
Step 5: Calculate the expected potentials for the following cells using the half-cell
potentials in the table above. Compare them with the measured values (from Video
2) and determine the percent error. Assume that the expected potential is the
accepted value.
Cell
Mg Mg2+||Fe²+ Fe
Mg Mg2+|| Cu²+|Cu
Fe|Fe²+||Cu²+|Cu
CALCULATIONS:
Expected Potential Measured Potential Percent Error
Step 6: Rank the reduction potentials of the metal ions (Zn²+, Cu²+, Mg²+, Fe²+).
smallest
greatest
Cutz
Fe +2
ढककर
Mg +2
Transcribed Image Text:Step 4: Fill in the relative half-cell reduction potentials with zinc as the reference electrode using data from the previous steps (Steps 1-3 in Video 2). Zn²+/Zn: 0volts Cu²+/Cu: Mg2+/Mg: Fe²+/Fe: Step 5: Calculate the expected potentials for the following cells using the half-cell potentials in the table above. Compare them with the measured values (from Video 2) and determine the percent error. Assume that the expected potential is the accepted value. Cell Mg Mg2+||Fe²+ Fe Mg Mg2+|| Cu²+|Cu Fe|Fe²+||Cu²+|Cu CALCULATIONS: Expected Potential Measured Potential Percent Error Step 6: Rank the reduction potentials of the metal ions (Zn²+, Cu²+, Mg²+, Fe²+). smallest greatest Cutz Fe +2 ढककर Mg +2
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