6. The following questions concern a battery based on the Cd2+/Cd (Cd = cadmium) and the Ag1+/Ag (Ag = silver) half-cells. NaCl(aq) is used in the salt bridge. The rele- Cl2(8) + 2 e 2 Cl1-(aq) +1.36 V %3D Pt2+(aq) + 2 e Pt(s) +1.18 V %3D HNO3(aq) + 3 H1+(aq) + 3 e NO(8) + 2 H2O(1) +0.96 V vant reactions and values of the Ag1+(aq) + 1e Ag(s) +0.80 V %3D standard reduction potentials are listed in the table at the right. Cu2+(aq) + 2 e Cu(s) +0.34 V %3D 2 HC(ад) + 2е H2(8) + 2 Cl1-(aq) 0.00 V %3D Cd2+(aq) + 2 e Cd(s) -0.40 V %3D Na1+(aq) + 1e Na(s) -2.71 V %3D Is each of the following statements true or false? Indicate your choice by circling T (if the statement is TRUE) or F (if the statement is FALSE). a. Electrons flow from the Cd2+/Cd half-cell to the Ag1+/Ag half-cell. T F b. The reducing agent is Ag(s) and the oxidizing agent is Cd2+(aq). T F С. The Agl+/Ag half-cell is the anode. T F
6. The following questions concern a battery based on the Cd2+/Cd (Cd = cadmium) and the Ag1+/Ag (Ag = silver) half-cells. NaCl(aq) is used in the salt bridge. The rele- Cl2(8) + 2 e 2 Cl1-(aq) +1.36 V %3D Pt2+(aq) + 2 e Pt(s) +1.18 V %3D HNO3(aq) + 3 H1+(aq) + 3 e NO(8) + 2 H2O(1) +0.96 V vant reactions and values of the Ag1+(aq) + 1e Ag(s) +0.80 V %3D standard reduction potentials are listed in the table at the right. Cu2+(aq) + 2 e Cu(s) +0.34 V %3D 2 HC(ад) + 2е H2(8) + 2 Cl1-(aq) 0.00 V %3D Cd2+(aq) + 2 e Cd(s) -0.40 V %3D Na1+(aq) + 1e Na(s) -2.71 V %3D Is each of the following statements true or false? Indicate your choice by circling T (if the statement is TRUE) or F (if the statement is FALSE). a. Electrons flow from the Cd2+/Cd half-cell to the Ag1+/Ag half-cell. T F b. The reducing agent is Ag(s) and the oxidizing agent is Cd2+(aq). T F С. The Agl+/Ag half-cell is the anode. T F
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:6. The following questions concern
a battery based on the Cd²+/Cd
(Cd = cadmium) and the Ag1+/Ag
(Ag = silver) half-cells. NaCl(aq)
is used in the salt bridge. The rele-
Cl2(g) + 2 e
2 Cl1-(aq)
+1.36 V
Pt2+(aq) + 2 e
Pt(s)
+1.18 V
HNO3(aq) + з н1+ (ад) + 3е
NO(8) + 2 H2O(1)
+0.96 V
vant reactions and values of the
Ag1+(aq) + 1e
Ag(s)
+0.80 V
%3D
standard reduction potentials are
listed in the table at the right.
Cu2+(aq) + 2 e
Cu(s)
+0.34 V
2 HCI(aд) + 2 е
H2(g) + 2 Cl1-(aq)
0.00 V
Cd2+(aq) + 2 e
Cd(s)
-0.40 V
%3D
Na1+(aq) + 1e
Na(s)
-2.71 V
Is each of the following statements true or false? Indicate your choice by circling T (if the statement is
TRUE) or F (if the statement is FALSE).
Electrons flow from the Cd2+/Cd half-cell to the Ag1+/Ag half-cell.
F
а.
b.
The reducing agent is Ag(s) and the oxidizing agent is Cd2+(aq).
T
F
C.
The Ag1+/Ag half-cell is the anode.
T
F
d.
The Na1+(aq) ions move through the salt bridge toward the Ag1+/Ag half-cell.
T
F
е.
This battery will produce close to 0.40 volts of electrical energy.
T
F
f. Na1+(aq) can be used instead of Ag1+(aq) in the Ag1+/Ag half-cell.
F
g. Ag(s) reacts with Pt2+(aq) but not with Cu2+(aq).
T
F
h.
Ag1+(aq) does not react with Pt(s).
T
F
i. Nal+(aq) can be used instead of Cd(s) in the Cd2+/Cd half-cell.
T
F
j. Ag(s) is a stronger reducing agent than Cu(s).
T
F
k. Pt2+(aq) is a stronger oxidizing agent than HNO3(aq).
T
F
1. Sn, tin, is a more reactive metal than Ag. Substituting the Sn2+/Sn half-cell for
the Ag1+/Ag half-cell will result in a battery that produces a larger voltage.
F
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