Homework Help is Here – Start Your Trial Now!
Science
Chemistry
reduction half-reactions. 2. The accepted standard reduction potentials for copper and zinc are listed below. What is the accepted value for the Fell? Zinc Copper Ed=-0.76 V Ea= +0.34 V

reduction half-reactions. 2. The accepted standard reduction potentials for copper and zinc are listed below. What is the accepted value for the Fell? Zinc Copper Ed=-0.76 V Ea= +0.34 V

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question
Number 2
Lab #21-Electrochemical Cells red=inpert black = common Objective: I will measure the potential difference of dissimilar metals. Background: Materials: ♦ . . . . Voltmeter Coffee Filter Vinegar Zinc Zn Iron Pb Cu red *** Cu black Pb black 558.5 Sn black 566.9 Zn black Al black Mg black 1.002 0.662 1.741 Procedure: 1. Flatten the coffee filter on your lab desk, and dampen it completely with vinegar. 2. Place the 6 metal samples evenly spaced on the outside edge of the coffee filter. 3. Set the voltmeter to DC volts. 4. Firmly press the positive and negative electrodes into the metals. 5. Record the voltage in the data table. Note: The voltage will drop over time. Record the highest voltage that you see. 6. Reverse the electrodes, and record the voltage in the data table. 7. Determine and record the potential differences of all other combinations of metals. Data Collection: 36.8 -430.2 -81.3 -1,156 . . - . 463.8 113.1 1.196 Zine Erd=-0.76 V Copper | Ered = +0.34 V . Measured Potential Difference Pb red Sn red Zn red |-5456-530.2 -1.009 220229 37.9 -444.9 -465,6 Magnesium Tin An Aluminum A Copper Cu -361,7 Al red Mg red -0,642 -1.707 -74.2 0.708 | -1.143 -99,11. 171 370.9 -0.69 1,048 -1.659 Conclusion Questions: 1. A battery is made using zinc and copper. Determine and label the balanced oxidation and reduction half-reactions. 2. The accepted standard reduction potentials for copper and zinc are listed below. What is the accepted value for the Fell? C
Transcribed Image Text:Lab #21-Electrochemical Cells red=inpert black = common Objective: I will measure the potential difference of dissimilar metals. Background: Materials: ♦ . . . . Voltmeter Coffee Filter Vinegar Zinc Zn Iron Pb Cu red *** Cu black Pb black 558.5 Sn black 566.9 Zn black Al black Mg black 1.002 0.662 1.741 Procedure: 1. Flatten the coffee filter on your lab desk, and dampen it completely with vinegar. 2. Place the 6 metal samples evenly spaced on the outside edge of the coffee filter. 3. Set the voltmeter to DC volts. 4. Firmly press the positive and negative electrodes into the metals. 5. Record the voltage in the data table. Note: The voltage will drop over time. Record the highest voltage that you see. 6. Reverse the electrodes, and record the voltage in the data table. 7. Determine and record the potential differences of all other combinations of metals. Data Collection: 36.8 -430.2 -81.3 -1,156 . . - . 463.8 113.1 1.196 Zine Erd=-0.76 V Copper | Ered = +0.34 V . Measured Potential Difference Pb red Sn red Zn red |-5456-530.2 -1.009 220229 37.9 -444.9 -465,6 Magnesium Tin An Aluminum A Copper Cu -361,7 Al red Mg red -0,642 -1.707 -74.2 0.708 | -1.143 -99,11. 171 370.9 -0.69 1,048 -1.659 Conclusion Questions: 1. A battery is made using zinc and copper. Determine and label the balanced oxidation and reduction half-reactions. 2. The accepted standard reduction potentials for copper and zinc are listed below. What is the accepted value for the Fell? C
Expert Solution
steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Potentiometric Titrations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS