Questions 20 and 21 refer to the following information. Galvanic Cell Cell Diagram E° cell (Volts) Mg | Mg2(1.0 M) || Pb*2(1.0 M) | Pb 2.24 1 Zn | Zn2(1.0 M) || Pb*2(1.0 M) | Pb 0.63 2 Mg | Mg?(1.0 M) || Zn*(1.0 M) | Zn ? 3 The chemical reaction occurring in first galvanic cell is: Mg + Pb*2 → Mg2 + Pb

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...
icon
Related questions
Question
Questions 20 and 21 refer to the following information.
Galvanic Cell
Cell Diagram
E°cell (Volts)
Mg | Mg2(1.0 M) || Pb*2(1.0 M) | Pb
1
2.24
Zn | Zn(1.0 M) || Pb*2(1.0 M) | Pb
2
0.63
Mg | Mg*(1.0 M) || Zn*2(1.0 M) | Zn
3
The chemical reaction occurring in first galvanic cell is: Mg + Pb*2 → Mg+2 + Pb
21. If the concentration of Mg+2 is changed from 1.0 M to 3.0 M in the galvanic cells above, what will
happen to the observed cell voltages in galvanic cells 1 and 3?
(A) The voltage in both galvanic cells 1 and 3 will increase.
(B) The voltage will decrease in both galvanic cells 1 and 3.
(C) The voltage in galvanic cell 1 will increase and will decrease in galvanic cell 3
(D) The voltage in galvanic cell 3 will increase and will decrease in galvanic cell 1.
22.
Consider a voltaic cell based on these half-cells.
Ag (aq) +e → Ag/s)
Cd (aq) + 2e → Cd¢s)
E* = +0.80 V
E = -0.40 V
Identify the anode and give the voltage of this cell under
standard conditions.
(A) Ag; Ecell = 0.40 V
(B) Ag; Ecell = 2.00 V
(C) Cd; Ecell = 1.20 V
(D) Ag; Ecell = 2.00 V
Transcribed Image Text:Questions 20 and 21 refer to the following information. Galvanic Cell Cell Diagram E°cell (Volts) Mg | Mg2(1.0 M) || Pb*2(1.0 M) | Pb 1 2.24 Zn | Zn(1.0 M) || Pb*2(1.0 M) | Pb 2 0.63 Mg | Mg*(1.0 M) || Zn*2(1.0 M) | Zn 3 The chemical reaction occurring in first galvanic cell is: Mg + Pb*2 → Mg+2 + Pb 21. If the concentration of Mg+2 is changed from 1.0 M to 3.0 M in the galvanic cells above, what will happen to the observed cell voltages in galvanic cells 1 and 3? (A) The voltage in both galvanic cells 1 and 3 will increase. (B) The voltage will decrease in both galvanic cells 1 and 3. (C) The voltage in galvanic cell 1 will increase and will decrease in galvanic cell 3 (D) The voltage in galvanic cell 3 will increase and will decrease in galvanic cell 1. 22. Consider a voltaic cell based on these half-cells. Ag (aq) +e → Ag/s) Cd (aq) + 2e → Cd¢s) E* = +0.80 V E = -0.40 V Identify the anode and give the voltage of this cell under standard conditions. (A) Ag; Ecell = 0.40 V (B) Ag; Ecell = 2.00 V (C) Cd; Ecell = 1.20 V (D) Ag; Ecell = 2.00 V
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Electrochemical Cells
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.
Similar questions
  • SEE MORE QUESTIONS
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