EP BASIC CHEMISTRY-STANDALONE ACCESS
6th Edition
ISBN: 9780134999890
Author: Timberlake
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 15, Problem 72APP
In an acidic dry-cell battery, the following unbalanced halfreaction takes place in acidic solution:
a. Balance the half-reaction.
b. Is
c. Indicate whether the half-reaction takes place at the anode or cathode.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
(7.4) Describe in shorthand notation a
galvanic cell for which the cell has the
following reaction. Chose the BEST option
by writing the CAPITAL LETTER of the best
answer.
Cu(s) + 2 Fe*3(aq) - Cu*?(aq) + 2
(be).
Fe2 (aq)
CHOICES:
(A) Cu Cu*2||Fe*3|Fe*2
(B) Cu*2|Cu||Fe*3| Fe*2
(C) Cu|Cu*2||Fe*2 |Fe*3
(C) Cu*2|Cu||Fe*2| Fe*3
Answer:
(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…
Chapter 15 Solutions
EP BASIC CHEMISTRY-STANDALONE ACCESS
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
Knowledge Booster
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
- (7.9) Using potentials listed in the Table, the standard reduction determine whether the following reaction is spontaneous under standard conditions. Support your answer. Hg*2(aq) + 21¯(aq) → ,+2, Hga) +I2(s) From the Table: Hg*2(aq) + 2e¯ → Hga) E°red = +0.85 V I2(s) + 2e- - 21 (aq) E°red = +0.54 V Answer: Is the above reaction spontaneous? (YES or NO) Briefly support your answer (. Refer to the Table of Standard Reduction Potential below. STANDARD REDUCTION POTENTIAL AT 25 °C ETV) atteaction +0.50 2H,O + 2e-Hlg) + 20H (a Hait-Reaction (V) Ag (ag) +- Agis) Aglle(s)+- Ag)+ r (a) AgCIs) - Ag(s) -a(ap) Ag(CN), (a) eAgs)+ 2CN (a) -O83 Agi+ r(a) 0.10 HO, (a) + HO) + 2e 3OH (a) +0.22 HOa) + 2H(ag) 2e 2Ho) -0.31 He(a 2e 2 Hg) +0.45 2Hg"(a)+ 2e Hg () -0.15 He(a)+ 2e Hel) ) + 2e 21(a) -1.46 2 10, (a) + 12H(a) + 10e l) +6HO) +0.56K'(ag) K) +1.78 a79 AgCro,(s) + 2e 2 Ags) + Cro ) Agl(s) +e- Ag) (a) AgrS,0(a) + - Agis) + 25,0 (a) A" (a) + 3e - A) 92 054 1.20 HAs0,n- 2H"(a) + 2e HAOa) + H,o)…arrow_forwardWhat will be produced at the anode and cathode when an aqueous solution of CuBr2 is electrolyzed? 12. 3.arrow_forwardWhat volumes of H₂(g) and O₂(g) at STP are produced from the electrolysis of water by a current of 2.64 A in 15.5 min? H₂(g) 285 0₂(9) 142 XL XLarrow_forward
- (7.1a) Complete and balance the following by ion-electron method. Reactions are taking place in acidic solution. a) Cu(s) + NO3 (aq) - Cu*2(aq) + NO2(g) + NO29) Analysis: Oxidation-Half reation: Balancing atoms & charges: Cu(s) Cu*2, (aq) e Reduction-Half reation: Balancing O & H and charges: H* + NO3 (aq) e NO2(g) + 1 H20 Balancing electrons lost & gained and balancing the equation: Cu(s) NO3 (aq) + H* - Cu*(aq) NO2(g) H20arrow_forwardCalculate the Eºcell and the △Gº for the following balanced redox reactions: a. PbO2 (s) + 4H+ (aq) + Sn (s) → Pb2+ (aq) + 2 H2O (l) + Sn2+ (aq) c. AgCl (s) + NO (g) → Ag (s) + Cl- (aq) + NO3- (aq) [in acidic soln]arrow_forwardConsider the following half-reactions: Half-reaction I₂(s) + 2e →>>> ► 21 (aq) Sn²+ (aq) + 2e™ Sn(s)-0.140V Al³+ (aq) + 3e > Al(s) -1.660V (1) The strongest oxidizing agent is: (2) The weakest oxidizing agent is: (3) The weakest reducing agent is: (4) The strongest reducing agent is: (5) Will Al³+ (aq) oxidize I (aq) to I₂(s)? E° (V) 0.535V (6) Which species can be oxidized by Sn2+ (aq)? If none, leave box blank. enter formulaarrow_forward
- Consider the following half-reactions: (1) The strongest oxidizing agent is: (2) The weakest oxidizing agent is: (3) The weakest reducing agent is: Half-reaction 1₂(s) + 2e (4) The strongest reducing agent is: Cu2+ (aq) + 2e Mn2+ (aq) + 2e (5) Will Mn2+ (aq) oxidize I (aq) to 1₂ (s)? (6) Which species can be reduced by Cu(s)? If none, leave box blank. 21 (aq) - E° (V) 0.535V Cu(s) 0.337V Mn(s)-1.180V 1 enter formula Previousarrow_forwardComplete and balance the following redox reaction in acidic solution :3+ Mn2+ (aq) + BiO3(aq) →MnO4 (aq) + Bi³+ (aq) 3C₂²- 1 + 2 3 (s) Bi ( OH H Tap here or pull up for additional resources Reset 4 (1) 5 Of 140 O H₂O ) 6 7 (g) H* H₂O* 8 9 0 Mn (aq) xH₂O e Suarrow_forwardComplete and balance the following redox reaction in acidic solution Mn2* (aq) + BiO3 (aq) MnO, (aq) + Bia* (aq) 3. 2. 3+ O4+ 04- 6. 8 9. 1 O2 03 O5 O6 17 O8 O9 (s) (1) (g) (aq) 1) Mn OH Bi e H3O* H20 H* Delete 5 4.arrow_forward
- A concentration cell running at 25°C consists of two Al(s)/Al3+(aq) cells. If the concentration of Al3+ at the anode is 4.12 x 10-8 M and the concentration of Al3+ at the cathode is 1.27 M, what is the value of Ecell? (Two decimal places)arrow_forwardConsider the following half-reactions: Half-reaction Ag+ (aq) + e- 2H+ (aq) + 2e Mg2+ (aq) + 2e (1) The strongest oxidizing agent is: (2) The weakest oxidizing agent is: (3) The weakest reducing agent is: (4) The strongest reducing agent is: (5) Will Mg2+ (aq) oxidize Ag(s) to Ag*(aq)? | (6) Which species can be oxidized by H(aq)? If none, leave box blank. E° (V) Ag(s) 0.799V H₂(g) 0.000V Mg(s)-2.370V enter formula V Previous Nextarrow_forwardConsider the following half-reactions: Half-reaction Hg2+ (aq) + 2e™ Pb2+ (aq) + 2e Cr3+ (aq) + 3e (1) The strongest oxidizing agent is: (2) The weakest oxidizing agent is: (3) The weakest reducing agent is: (4) The strongest reducing agent is: P E° (V) Hg(1) 0.855V Pb(s)-0.126V Cr(s) -0.740V (5) Will Hg2+ (aq) oxidize Cr(s) to Cr³+ (aq)? (6) Which species can be oxidized by Pb²+ (aq)? If none, leave box blank. enter formulaarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Introduction to Electrochemistry; Author: Tyler DeWitt;https://www.youtube.com/watch?v=teTkvUtW4SA;License: Standard YouTube License, CC-BY