Basic Chemistry
6th Edition
ISBN: 9780134878119
Author: Timberlake, Karen C. , William
Publisher: Pearson,
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Textbook Question
Chapter 15, Problem 53UTC
The chapter sections to review are shown in parentheses at the end of each problem.
15.53 Consider the following voltaic cell: (15.3)
a. What is the oxidation half-reaction?
b. What is the reduction half-reaction?
c. What metal is the anode?
d. What metal is the cathode?
e. What is the direction of electron flow?
f. What is the overall reaction that takes place?
g. Write the shorthand cell notation.
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Students have asked these similar questions
(7.8) A voltaic cell is based on Co*2/Co half-
cell and a AgCl/Ag half-cell.
a) What reaction occurs at the anode?
b) What is the standard cell potential,
E°cell ?
(a) Choices: The reaction that occurs at the
anode:
(A) Co*2(aq) + 2e¯ ® Co(s)
(B) Co(s) ® Co²(aq)
+2,
+ 2e-
(C) Ag*(aq) + e¯
® Ag(s)
(D) Ag(s) ® Ag* (aq) + e¯
Answer: The reaction that occurs at the
anode is
(CAPITAL
LETTER only).
b) What is the standard cell potential,
E°cell ?
Choices: (A) +0.52 V
(C) -0.52 V
(B) -1.08 V
(D) +1.08 V
Answer: The standard cell potential of the
cell, E°cell =
V.
Refer to the Table of Standard Reduction
Potential below.
STANDARD REDUCTION POTENTIAL AT 25 °C
Retie
Hall eaction
Ag'ay+e Agls)
Agle) Ag) + r"(ag)
AgCs) +- Ag)
0.0 2 H0)+ 2e Hl)+ 20H Tng
0.10 HO, (a) + HAXn + 2e 3OH(a)
+0.22 HO) + 2H() + 2e-2H0
-0. Hea 2 2 Ha
0.45ag (a) + te He"(
AgCN, (a+ r- Ag) + 2CN (a)
Ag:CrO) 2e 2Ag) Co/
Aglis - Ag +F)
+0.79
AgSOl - Ag) + 25,0 (ag)
A la+ 3e - AA
als) + 2e 2(a)
+1.20
Ha ag + 2() + 2- HO + H,0)…
(7.7)
A voltaic cell based on the half-
reactions:
In (aq)
– In*3(ag) + 2e™
(aq)
Br2() +2e¯→ 2Br¯(ag)
The standard emf for this cell is +1.46 V.
Using the data below, calculate, E'red for
the reduction of In*3 to In*1.
Br2() + 2e¯ → 2B1¯(ag) (cathode)
E red(cathode) = E
%3D
Br(aq) = +1.06 V
(See Table below)
Choices:
(A) +0.40 V
(B) -0.40 V
(C) + 2.50 V
(D) -2.50 V
Answer: E'red for the reduction of
In+3 =
to In*1
(in
volts)
STANDARD REDUCTION POTENTIALS at 25°C;
Reduction Half Reaction
F: (g) + 2e → 2F (aq)
HO, (aq) + 2H" (aq) + 2e 2H;0
PbO(3) +4H" (ag) + So (ag) + 2e PbSO(s) + HO
MnO. (aq) + 8H" (aq)+ Se+ Ma" (ag) + 4H,o
Au" (aq) + 3e Au (s)
Ch (g) + 2e 2C (ag)
CrO (aq) + 14H" (aq) + 6e →2Cr" (aq) + TH:O
MnO: (3) i 4H" (aq) 2e Ma (aq) 2H:0
O: (g) + 4H" (aq) + 4e + 2H:0
Br: () +2e + 2Br (ag)
NO, (aq) + 4I" (aq) + 3e + NO (g) + 2H:0
2Hg (aq) + 2e Hg" (aq)
Hgr" (aq) + 2e→ 2Hg ()
Ag (aq) +e Ag (s)
Fe (aq) + e Fe (aq)
O: (g) - 21 (aq) + 2e HO: (ag)
E MnO" (aq) + 2H0 + 3e MnO: (3) + 40H…
(7.3) Write the half-cell reactions for each of
the following cells. Choose from the given
options the BEST answer. Write the
CAPITAL LETTER of your cholce.
(a) Ag I Ag* a H* I Hz 1 Pt
Answer:
Half-cell reactions: (A) ) & ()
(B) ) & (iv) (C) (i) & () (D)
(i) & (iv)
O Agʻ(aq) o Agts) + e
Ci) Agts) Ag'laq) +
Clii) 2 H"(aq, IM)
2e" - Hzg 1 atm)
(iv) Hag 1 atm) - 2 H'taq,
IM) * 2e
I Brzn PE
Answer:
Hall-cell reactions: (w W& Cii) (B)
(im & (i) (C) (1) & (iv)
& (iv)
(D) (i)
Crz0, ng • 14 H'cag) *• 6e
Ge 2 Cr*tag) + 7 H,0D
(ii) 2 Br 2e O Brzn
(iv) Brzo 2 Br+ 2e
Chapter 15 Solutions
Basic Chemistry
Ch. 15.1 - Identify each of the following as an oxidation or...Ch. 15.1 - Identify each of the following as an oxidation or...Ch. 15.1 - Prob. 3PPCh. 15.1 - Prob. 4PPCh. 15.1 - Prob. 5PPCh. 15.1 - Prob. 6PPCh. 15.1 - Prob. 7PPCh. 15.1 - Prob. 8PPCh. 15.1 - Prob. 9PPCh. 15.1 - Prob. 10PP
Ch. 15.1 - Prob. 11PPCh. 15.1 - Prob. 12PPCh. 15.1 - What is the oxidation number of the specified...Ch. 15.1 - What is the oxidation number of the specified...Ch. 15.1 - Prob. 15PPCh. 15.1 - Prob. 16PPCh. 15.1 - Prob. 17PPCh. 15.1 - Prob. 18PPCh. 15.1 - Prob. 19PPCh. 15.1 - Prob. 20PPCh. 15.2 - Balance each of the following half-reactions in...Ch. 15.2 - Prob. 22PPCh. 15.2 - Prob. 23PPCh. 15.2 - Use the half-reaction method to balance each of...Ch. 15.2 - Use the half-reaction method to balance each of...Ch. 15.2 - Use the half-reaction method to balance each of...Ch. 15.3 - Use the activity series in Table 15.3 to predict...Ch. 15.3 - Use the activity series in Table 15.3 to predict...Ch. 15.3 - Prob. 29PPCh. 15.3 - Prob. 30PPCh. 15.3 - Prob. 31PPCh. 15.3 - Prob. 32PPCh. 15.3 - The following half-reaction takes place in a...Ch. 15.3 - The following half-reaction takes place in a...Ch. 15.3 - The following half-reaction takes place in a...Ch. 15.3 - Prob. 36PPCh. 15.4 - What we call "tin cans" are really iron cans...Ch. 15.4 - Prob. 38PPCh. 15.4 - Prob. 39PPCh. 15.4 - Prob. 40PPCh. 15.4 - Prob. 41PPCh. 15.4 - Prob. 42PPCh. 15 - Prob. 43UTCCh. 15 - Prob. 44UTCCh. 15 - Prob. 45UTCCh. 15 - Prob. 46UTCCh. 15 - The chapter sections to review are shown in...Ch. 15 - The chapter sections to review are shown in...Ch. 15 - The chapter sections to review are shown in...Ch. 15 - Prob. 50UTCCh. 15 - Prob. 51UTCCh. 15 - Prob. 52UTCCh. 15 - The chapter sections to review are shown in...Ch. 15 - The chapter sections to review are shown in...Ch. 15 - Which of the following are oxidation-reduction...Ch. 15 - Which of the following are oxidation-reduction...Ch. 15 - In the mitochondria of human cells, energy is...Ch. 15 - Prob. 58APPCh. 15 - Prob. 59APPCh. 15 - Prob. 60APPCh. 15 - Prob. 61APPCh. 15 - Prob. 62APPCh. 15 - Prob. 63APPCh. 15 - Write the balanced half-reactions and a balanced...Ch. 15 - Prob. 65APPCh. 15 - Use the activity series in Table 15.3 to predict...Ch. 15 - Prob. 67APPCh. 15 - Prob. 68APPCh. 15 - Prob. 69APPCh. 15 - Prob. 70APPCh. 15 - Prob. 71APPCh. 15 - In an acidic dry-cell battery, the following...Ch. 15 - Steel bolts made for sailboats are coated with...Ch. 15 - Copper cooking pans are stainless steel pans...Ch. 15 - Prob. 75CPCh. 15 - Prob. 76CPCh. 15 - Prob. 77CPCh. 15 - The following problems are related to the topics...Ch. 15 - The following problems are related to the topics...Ch. 15 - The following problems are related to the topics...Ch. 15 - Prob. 81CPCh. 15 - Prob. 82CPCh. 15 - Prob. 83CPCh. 15 - Prob. 84CPCh. 15 - Prob. 85CPCh. 15 - Prob. 86CPCh. 15 - Prob. 87CPCh. 15 - Prob. 88CP
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