18.53. An electrochemical cell consists of a standard hydrogen electrode and a second half-cell in which a magnesium electrode is immersed in a 1.00 M solution of Mg2+ ions. 19 51 a. What is the value of Ecell? b. Which electrode is the anode? c. Which is a product of the cell reaction: H+ ions or H₂ gas?
18.53. An electrochemical cell consists of a standard hydrogen electrode and a second half-cell in which a magnesium electrode is immersed in a 1.00 M solution of Mg2+ ions. 19 51 a. What is the value of Ecell? b. Which electrode is the anode? c. Which is a product of the cell reaction: H+ ions or H₂ gas?
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...
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18:53 please

Transcribed Image Text:that
=d.
ery is
an
with a
What is
cell
net ionic
on:
H₂O(l)
-reaction potentials
are expressed. Why, then, is the SHE not widely used as a
reference electrode in electrochemical cells?
*18.52. Suggest a replacement metal for platinum in the standard
hydrogen electrode. Explain why you selected the metal
you did.
Problems
18.53. An electrochemical cell consists of a standard hydrogen
electrode and a second half-cell in which a magnesium
electrode is immersed in a 1.00 M solution of Mg2+ ions.
a. What is the value of Ecell?
b. Which electrode is the anode?
c. Which is a product of the cell reaction: H+ ions or H₂
gas?
18.54. An electrochemical cell consists of a standard hydrogen
electrode and a second half-cell in which a cadmium
electrode is immersed in a 1.00 M solution of Cd2+ ions.
a. What is the value of Ecell?
b. Which electrode is the anode?
c. Which is a product of the cell reaction: Cd²+ ions or Cd
metal?
The Effect of Concentration on Ecell
Concept Review
18.55. Why does the operating cell potential of most batteries
change little until the battery is nearly discharged?
18.56. The standard potential of the Cu-Zn cell reaction,
Zn(s) + Cu²+ (aq) → Zn²+ (aq) + Cu(s)
2
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