Question 1

Balance the following half-reaction occurring in acidic solution.
​
NO3-(aq)→

Accepted Answer

A) NO3-(aq)+ 10H+(aq)+ 8e− →   + 3H2O(l) 
B) NO3-(aq)+ 3H2O(l)+ 10e− →   + 10H+(aq) 
C) NO3-(aq)+ 10H+(aq)→   + 3H2O(l)+ 10e− 
D) NO3-(aq)+ 8e− →   + 8H+(aq)+ 3H2O(l) 
E) NO3-(aq)+ 10H+(aq)→   + 3H2O(l) 
A) NO3-(aq)+ 10H+(aq)+ 8e− →   + 3H2O(l) 
B) NO3-(aq)+ 3H2O(l)+ 10e− →   + 10H+(aq) 
C) NO3-(aq)+ 10H+(aq)→   + 3H2O(l)+ 10e− 
D) NO3-(aq)+ 8e− →   + 8H+(aq)+ 3H2O(l) 
E) NO3-(aq)+ 10H+(aq)→   + 3H2O(l) A

Question 2

When the following oxidation-reduction reaction in acidic solution is balanced,what is the lowest whole-number coefficient for H+,and on which side of the balanced equation should it appear?
S2O82-(aq)+ NO(g)→ SO42-(aq)+ NO3-(aq)

Accepted Answer

A) 4,product side 
B) 8,reactant side 
C) 12,reactant side 
D) 8,product side 
E) 4,reactant side 
A) 4,product side 
B) 8,reactant side 
C) 12,reactant side 
D) 8,product side 
E) 4,reactant side D

Question 3

A fuel cell designed to react grain alcohol with oxygen has the following net reaction:
C2H5OH(l)+ 3O2(g)→ 2CO2(g)+ 3H2O(l)
The maximum work that 1 mol of alcohol can yield by this process is 1320 kJ.What is the theoretical maximum voltage that this cell can achieve?

Accepted Answer

A) 1.14 V 
B) 2.28 V 
C) 2.01 V 
D) 0.760 V 
E) 13.7 V 
A) 1.14 V 
B) 2.28 V 
C) 2.01 V 
D) 0.760 V 
E) 13.7 V A

Question 4

Given:
Mn2+(aq)+ 2e-  
Mn(s); E° = -1.18 V
Cu2+(aq)+ 2e-  
Cu(s); E° = 0.34 V
Cr2O72-(aq)+ 14H+(aq)+ 6e-  
2Cr3+(aq)+ 7H2O(l); E° = 1.33 V
Which of the following species is the strongest reducing agent?

Accepted Answer

A) Mn 
B) Cu 
C) Cr3+ 
D) Mn2+ 
E) Cr2O72- 
A) Mn 
B) Cu 
C) Cr3+ 
D) Mn2+ 
E) Cr2O72-

Question 5

For a galvanic cell using Fe | Fe2+(1.0 M)and Pb | Pb2+(1.0 M)half-cells,which of the following statements is correct?
Fe2+(aq)+ 2e- → Fe(s); E° = -0.41 V
Pb2+(aq)+ 2e- → Pb(s); E° = -0.13 V

Accepted Answer

A) The iron electrode is the cathode. 
B) When the cell has completely discharged,the concentration of Pb2+ is zero. 
C) The mass of the iron electrode increases during discharge. 
D) The concentration of Pb2+ decreases during discharge. 
E) Electrons leave the lead electrode to pass through the external circuit during discharge. 
A) The iron electrode is the cathode. 
B) When the cell has completely discharged,the concentration of Pb2+ is zero. 
C) The mass of the iron electrode increases during discharge. 
D) The concentration of Pb2+ decreases during discharge. 
E) Electrons leave the lead electrode to pass through the external circuit during discharge.

Question 6

What is the cell reaction for the following voltaic cell?
Cr(s)| Cr3+(aq)|| Br-(aq)| Br2(g)| Pt(s)

Accepted Answer

A) 2Cr(s)+ 3Br2(g)   2Cr3+(aq)+ 6Br-(aq) 
B) Cr(s)+ Cr3+(aq)   Br-(aq)+ Br2(g) 
C) 2Cr3+(aq)+ 6Br-(aq)   2Cr(s)+ 3Br2(g) 
D) Cr(s)+ 3Br2(g)   Cr3+(s)+ 2Br-(aq) 
E) Cr(s)+ 2Br-(aq)   Br2(g)+ Cr3+(aq) 
A) 2Cr(s)+ 3Br2(g)   2Cr3+(aq)+ 6Br-(aq) 
B) Cr(s)+ Cr3+(aq)   Br-(aq)+ Br2(g) 
C) 2Cr3+(aq)+ 6Br-(aq)   2Cr(s)+ 3Br2(g) 
D) Cr(s)+ 3Br2(g)   Cr3+(s)+ 2Br-(aq) 
E) Cr(s)+ 2Br-(aq)   Br2(g)+ Cr3+(aq)

Question 7

A voltaic cell is made by placing an iron electrode in a compartment in which the Fe2+ concentration is 3.0 × 10-5 M and by placing a Pt electrode in the other compartment,in which the H+ concentration is 3.10 M and   = 1.00 atm.The Fe2+/Fe half-cell reduction potential is -0.41 V,and the H+/H2 half-cell reduction potential is 0.00 V.What is E for the cell at 25oC?

Accepted Answer

A) 0.10 V 
B) 0.57 V 
C) 0.27 V 
D) 0.25 V 
E) 0.56 V 
A) 0.10 V 
B) 0.57 V 
C) 0.27 V 
D) 0.25 V 
E) 0.56 V

Question 8

What is one of the major products in the electrolysis of a saturated aqueous sodium chloride solution?
Reduction Half-Reaction
E° (V)
Na+(aq)+ e-  Na(s) -2.71
Mg2+(aq)+ 2e-   Mg(s) -2.37
2H2O(l)+ 2e-  H2(g)+ 2OH-(aq) -0.83
O2(g)+ 4H+(aq)+ 4e-  2H2O(l)1.23
Cl2(g)+ 2e-  2Cl-(aq)
1.36

Accepted Answer

A) Mg 
B) O2 
C) H2O 
D) Na 
E) Cl2 
A) Mg 
B) O2 
C) H2O 
D) Na 
E) Cl2

Question 9

Given:
Li+(aq)+ e-  Li(s); E° = -3.04 V
Mg2+(aq)+ 2e-  Mg(s); E° = -2.38 V
Fe2+(aq)+ 2e-  Fe(s); E° = -0.41 V
Ag+(aq)+ e-  Ag(s); E° = 0.80 V
Br2(l)+ 2e-  2Br-(aq); E° = 1.07 V
Which of the following species is the best oxidizing agent?

Accepted Answer

A) Mg2+ 
B) Br- 
C) Fe2+ 
D) Li 
E) Ag+ 
A) Mg2+ 
B) Br- 
C) Fe2+ 
D) Li 
E) Ag+

Question 10

In the following electrochemical cell,what is the reduction half reaction?
Mn(s)| Mn2+(aq)|| Fe3+(aq),Fe2+(aq)| Pt(s)

Accepted Answer

A) Fe3+(aq)+ e− → Fe2+(aq) 
B) Fe2+(aq)+ e− → Fe3+(aq) 
C) Fe2+(aq)+ Pt(s)→ Fe3+(aq)+ e− 
D) Mn2+(aq)→ Mn(s)+ 2e− 
E) Mn(s)→ Mn2+(aq)+ 2e− 
A) Fe3+(aq)+ e− → Fe2+(aq) 
B) Fe2+(aq)+ e− → Fe3+(aq) 
C) Fe2+(aq)+ Pt(s)→ Fe3+(aq)+ e− 
D) Mn2+(aq)→ Mn(s)+ 2e− 
E) Mn(s)→ Mn2+(aq)+ 2e−

Question 11

The process of producing a chemical change in an electrolytic cell is called _____.

Accepted Answer

A) ​electrodialysis 
B) ​electrophoresis 
C) ​electroplating 
D) ​electrodeposition 
E) ​electrolysis 
A) ​electrodialysis 
B) ​electrophoresis 
C) ​electroplating 
D) ​electrodeposition 
E) ​electrolysis

Question 12

What is the cell reaction for the following electrochemical cell?
Zn | Zn2+(aq)|| Sc3+(aq)| Sc

Accepted Answer

A) 3Zn(s)+ 2Sc3+(aq)→ 2Sc(s)+ 3Zn2+(aq) 
B) 2Sc(s)+ 3Zn2+(aq)→ 3Zn(s)+ 2Sc3+(aq) 
C) Zn(s)+ Zn2+(aq)→ Sc(s)+ Sc3+(aq) 
D) Zn(s)+ Sc3+(aq)→ Sc(s)+ Zn2+(aq) 
E) Sc(s)+ Zn2+(aq)→ Zn(s)+ Sc3+(aq) 
A) 3Zn(s)+ 2Sc3+(aq)→ 2Sc(s)+ 3Zn2+(aq) 
B) 2Sc(s)+ 3Zn2+(aq)→ 3Zn(s)+ 2Sc3+(aq) 
C) Zn(s)+ Zn2+(aq)→ Sc(s)+ Sc3+(aq) 
D) Zn(s)+ Sc3+(aq)→ Sc(s)+ Zn2+(aq) 
E) Sc(s)+ Zn2+(aq)→ Zn(s)+ Sc3+(aq)

Question 13

A piece of iron half-immersed in a sodium chloride solution will corrode more rapidly than a piece of iron half-immersed in pure water,because

Accepted Answer

A) the ions,which are not present in pure water,balance the accumulation of charge in each of the half-cells. 
B) the chloride ions increase the pH of the solution. 
C) the sodium ions oxidize the iron atoms. 
D) the chloride ions form a precipitate with iron. 
E) the chloride ions oxidize the iron atoms. 
A) the ions,which are not present in pure water,balance the accumulation of charge in each of the half-cells. 
B) the chloride ions increase the pH of the solution. 
C) the sodium ions oxidize the iron atoms. 
D) the chloride ions form a precipitate with iron. 
E) the chloride ions oxidize the iron atoms.

Question 14

The cell potential of an electrochemical cell with the cell reaction
2Al(s)+ 3Zn2+(aq)→ 3Zn(s)+ 2Al3+(aq)
Is 1.607 V.What is the maximum electrical work obtainable from this cell when 2.0 mol of Al is consumed?

Accepted Answer

A)    J 
B)    J 
C)    J 
D)    J 
E)    J 
A)    J 
B)    J 
C)    J 
D)    J 
E)    J

Question 15

A voltaic cell is made by placing an iron electrode in a compartment in which the Fe2+ concentration is 2.0 × 10-5 M and by placing a Pt electrode in the other compartment,in which the H+ concentration is 3.4 M and   = 1.00 atm.The Fe2+/Fe half-cell reduction potential is -0.41 V,and the H+/H2 half-cell reduction potential is 0.00 V.What is the value of E° for this cell,and which electrode is the anode?

Accepted Answer

A) 0.41 V,Fe 
B) 0.90 V,Pt 
C) -0.41 V,Pt 
D) -0.41 V,Fe 
E) 0.41 V,Pt 
A) 0.41 V,Fe 
B) 0.90 V,Pt 
C) -0.41 V,Pt 
D) -0.41 V,Fe 
E) 0.41 V,Pt

Question 16

An alkaline dry cell is similar to Leclanché cell,but it has _____ in place of ammonium chloride.

Accepted Answer

A) ​potassium hydroxide 
B) ​sodium hydroxide 
C) ​silver hydroxide 
D) ​lead (II)hydroxide 
E) ​iron (II)hydroxide 
A) ​potassium hydroxide 
B) ​sodium hydroxide 
C) ​silver hydroxide 
D) ​lead (II)hydroxide 
E) ​iron (II)hydroxide

Question 17

If the cell is initially at standard-state conditions,which of the following statements is true?   Zn2+(aq)+ 2e-  Zn(s); E° = -0.76 V
Cu2+(aq)+ 2e-  Cu(s); E° = 0.34 V

Accepted Answer

A) Initially Kc = 2 × 10-37,and it decreases with time. 
B) Initially Kc = 2 × 1037,and it does not change with time. 
C) Initially Kc = 2 × 1037,and it decreases with time. 
D) Initially Kc = 2 × 1037,and it increases with time. 
E) Initially Kc = 2 × 10-37,and it increases with time. 
A) Initially Kc = 2 × 10-37,and it decreases with time. 
B) Initially Kc = 2 × 1037,and it does not change with time. 
C) Initially Kc = 2 × 1037,and it decreases with time. 
D) Initially Kc = 2 × 1037,and it increases with time. 
E) Initially Kc = 2 × 10-37,and it increases with time.

Question 18

The _____ has zinc can as the anode; a graphite rod in the center,surrounded by a paste of manganese dioxide,ammonium and zinc chlorides,and carbon black,is the cathode.

Accepted Answer

A) Poggendorff acid cell​ 
B) Bunsen cell​ 
C) Leclanché dry cell​ 
D) Daniell cell​ 
E) ​Weston cell 
A) Poggendorff acid cell​ 
B) Bunsen cell​ 
C) Leclanché dry cell​ 
D) Daniell cell​ 
E) ​Weston cell

Question 19

Given:
W3+(aq)+ 3e-  W(s); E° = 2.72 V
Pb2+(aq)+ 2e-  Pb(s); E° = -0.13 V
Ni2+(aq)+ 2e-  Ni(s); E° = -0.23 V
Cd2+(aq)+ 2e-  Cd(s); E° = -0.40 V
Zn2+(aq)+ 2e-  Zn(s); E° = -0.76 V
Al3+(aq)+ 3e-  Al(s); E° = -1.66 V
Mg2+(aq)+ 2e-  Mg(s); E° = -2.38 V
Under standard-state conditions,which of the following metals will reduce W3+ to W but will not reduce Ni2+ to Ni?

Accepted Answer

A) Cd 
B) Pb 
C) Al 
D) Zn 
E) Mg 
A) Cd 
B) Pb 
C) Al 
D) Zn 
E) Mg

Question 20

Given:
Zn2+(aq)+ 2e-  Zn(s); E° = -0.76 V
Cu2+(aq)+ 2e-  Cu(s); E° = 0.34 V
Cr2O72-(aq)+ 14H+(aq)+ 6e-  2Cr3+(aq)+ 7H2O(l); E° = 1.33 V
Which of the following species is the strongest oxidizing agent?

Accepted Answer

A) Zn 
B) Cr3+ 
C) Cr2O72- 
D) Zn2+ 
E) Cu 
A) Zn 
B) Cr3+ 
C) Cr2O72- 
D) Zn2+ 
E) Cu

Balance the following half-reaction occurring in acidic solution. NO₃^-(aq)→

When the following oxidation-reduction reaction in acidic solution is balanced,what is the lowest whole-number coefficient for H⁺,and on which side of the balanced equation should it appear? S₂O₈^2-(aq)+ NO(g)→ SO₄^2-(aq)+ NO₃^-(aq)

A fuel cell designed to react grain alcohol with oxygen has the following net reaction: C₂H₅OH(l)+ 3O₂(g)→ 2CO₂(g)+ 3H₂O(l) The maximum work that 1 mol of alcohol can yield by this process is 1320 kJ.What is the theoretical maximum voltage that this cell can achieve?

Given: Mn²⁺(aq)+ 2e^- Mn(s); E° = -1.18 V Cu²⁺(aq)+ 2e^- Cu(s); E° = 0.34 V Cr₂O₇^2-(aq)+ 14H⁺(aq)+ 6e^- 2Cr³⁺(aq)+ 7H₂O(l); E° = 1.33 V Which of the following species is the strongest reducing agent?

For a galvanic cell using Fe | Fe²⁺(1.0 M)and Pb | Pb²⁺(1.0 M)half-cells,which of the following statements is correct? Fe²⁺(aq)+ 2e^- → Fe(s); E° = -0.41 V Pb²⁺(aq)+ 2e^- → Pb(s); E° = -0.13 V

What is the cell reaction for the following voltaic cell? Cr(s)| Cr³⁺(aq)|| Br^-(aq)| Br₂(g)| Pt(s)

Given: Li⁺(aq)+ e^- Li(s); E° = -3.04 V Mg²⁺(aq)+ 2e^- Mg(s); E° = -2.38 V Fe²⁺(aq)+ 2e^- Fe(s); E° = -0.41 V Ag⁺(aq)+ e^- Ag(s); E° = 0.80 V Br₂(l)+ 2e^- 2Br^-(aq); E° = 1.07 V Which of the following species is the best oxidizing agent?

In the following electrochemical cell,what is the reduction half reaction? Mn(s)| Mn²⁺(aq)|| Fe³⁺(aq),Fe²⁺(aq)| Pt(s)

The process of producing a chemical change in an electrolytic cell is called _____.

What is the cell reaction for the following electrochemical cell? Zn | Zn²⁺(aq)|| Sc³⁺(aq)| Sc

A piece of iron half-immersed in a sodium chloride solution will corrode more rapidly than a piece of iron half-immersed in pure water,because

The cell potential of an electrochemical cell with the cell reaction 2Al(s)+ 3Zn²⁺(aq)→ 3Zn(s)+ 2Al³⁺(aq) Is 1.607 V.What is the maximum electrical work obtainable from this cell when 2.0 mol of Al is consumed?

An alkaline dry cell is similar to Leclanché cell,but it has _____ in place of ammonium chloride.

If the cell is initially at standard-state conditions,which of the following statements is true? Zn²⁺(aq)+ 2e^- Zn(s); E° = -0.76 V Cu²⁺(aq)+ 2e^- Cu(s); E° = 0.34 V

The _____ has zinc can as the anode; a graphite rod in the center,surrounded by a paste of manganese dioxide,ammonium and zinc chlorides,and carbon black,is the cathode.

Given: Zn²⁺(aq)+ 2e^- Zn(s); E° = -0.76 V Cu²⁺(aq)+ 2e^- Cu(s); E° = 0.34 V Cr₂O₇^2-(aq)+ 14H⁺(aq)+ 6e^- 2Cr³⁺(aq)+ 7H₂O(l); E° = 1.33 V Which of the following species is the strongest oxidizing agent?

Chemistry and Measurement

Atoms, molecules, and Ions

Calculations With Chemical Formulas and Equations

Chemical Reactions

The Gaseous State

Thermochemistry

Quantum Theory of the Atom

Electron Configurations and Periodicity

Ionic and Covalent Bonding

Molecular Geometry and Chemical Bonding Theory

States of Matter; Liquids and Solids

Solutions

Rates of Reaction

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Thermodynamics and Equilibrium

Nuclear Chemistry

Chemistry of the Main-Group Metals

The Transition Elements and Coordination Compounds

Organic Chemistry

Polymer Materials: Synthetic and Biological

Filters

Exam 19: Electrochemistry

Balance the following half-reaction occurring in acidic solution. ​ NO3-(aq)→

When the following oxidation-reduction reaction in acidic solution is balanced,what is the lowest whole-number coefficient for H+,and on which side of the balanced equation should it appear? S2O82-(aq)+ NO(g)→ SO42-(aq)+ NO3-(aq)

A fuel cell designed to react grain alcohol with oxygen has the following net reaction: C2H5OH(l)+ 3O2(g)→ 2CO2(g)+ 3H2O(l) The maximum work that 1 mol of alcohol can yield by this process is 1320 kJ.What is the theoretical maximum voltage that this cell can achieve?

Given: Mn2+(aq)+ 2e- Mn(s); E° = -1.18 V Cu2+(aq)+ 2e- Cu(s); E° = 0.34 V Cr2O72-(aq)+ 14H+(aq)+ 6e- 2Cr3+(aq)+ 7H2O(l); E° = 1.33 V Which of the following species is the strongest reducing agent?

For a galvanic cell using Fe | Fe2+(1.0 M)and Pb | Pb2+(1.0 M)half-cells,which of the following statements is correct? Fe2+(aq)+ 2e- → Fe(s); E° = -0.41 V Pb2+(aq)+ 2e- → Pb(s); E° = -0.13 V

What is the cell reaction for the following voltaic cell? Cr(s)| Cr3+(aq)|| Br-(aq)| Br2(g)| Pt(s)

What is one of the major products in the electrolysis of a saturated aqueous sodium chloride solution? Reduction Half-Reaction E° (V) Na+(aq)+ e- Na(s) -2.71 Mg2+(aq)+ 2e- Mg(s) -2.37 2H2O(l)+ 2e- H2(g)+ 2OH-(aq) -0.83 O2(g)+ 4H+(aq)+ 4e- 2H2O(l)1.23 Cl2(g)+ 2e- 2Cl-(aq) 1.36

Given: Li+(aq)+ e- Li(s); E° = -3.04 V Mg2+(aq)+ 2e- Mg(s); E° = -2.38 V Fe2+(aq)+ 2e- Fe(s); E° = -0.41 V Ag+(aq)+ e- Ag(s); E° = 0.80 V Br2(l)+ 2e- 2Br-(aq); E° = 1.07 V Which of the following species is the best oxidizing agent?

In the following electrochemical cell,what is the reduction half reaction? Mn(s)| Mn2+(aq)|| Fe3+(aq),Fe2+(aq)| Pt(s)

The process of producing a chemical change in an electrolytic cell is called _____.

What is the cell reaction for the following electrochemical cell? Zn | Zn2+(aq)|| Sc3+(aq)| Sc

A piece of iron half-immersed in a sodium chloride solution will corrode more rapidly than a piece of iron half-immersed in pure water,because

The cell potential of an electrochemical cell with the cell reaction 2Al(s)+ 3Zn2+(aq)→ 3Zn(s)+ 2Al3+(aq) Is 1.607 V.What is the maximum electrical work obtainable from this cell when 2.0 mol of Al is consumed?

An alkaline dry cell is similar to Leclanché cell,but it has _____ in place of ammonium chloride.

If the cell is initially at standard-state conditions,which of the following statements is true? Zn2+(aq)+ 2e- Zn(s); E° = -0.76 V Cu2+(aq)+ 2e- Cu(s); E° = 0.34 V

The _____ has zinc can as the anode; a graphite rod in the center,surrounded by a paste of manganese dioxide,ammonium and zinc chlorides,and carbon black,is the cathode.

Given: Zn2+(aq)+ 2e- Zn(s); E° = -0.76 V Cu2+(aq)+ 2e- Cu(s); E° = 0.34 V Cr2O72-(aq)+ 14H+(aq)+ 6e- 2Cr3+(aq)+ 7H2O(l); E° = 1.33 V Which of the following species is the strongest oxidizing agent?

Chemistry and Measurement

Atoms, molecules, and Ions

Calculations With Chemical Formulas and Equations

Chemical Reactions

The Gaseous State

Thermochemistry

Quantum Theory of the Atom

Electron Configurations and Periodicity

Ionic and Covalent Bonding

Molecular Geometry and Chemical Bonding Theory

States of Matter; Liquids and Solids

Solutions

Rates of Reaction

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Thermodynamics and Equilibrium

Nuclear Chemistry

Chemistry of the Main-Group Metals

The Transition Elements and Coordination Compounds

Organic Chemistry

Polymer Materials: Synthetic and Biological

Filters

Balance the following half-reaction occurring in acidic solution. NO₃^-(aq)→

When the following oxidation-reduction reaction in acidic solution is balanced,what is the lowest whole-number coefficient for H⁺,and on which side of the balanced equation should it appear? S₂O₈^2-(aq)+ NO(g)→ SO₄^2-(aq)+ NO₃^-(aq)

A fuel cell designed to react grain alcohol with oxygen has the following net reaction: C₂H₅OH(l)+ 3O₂(g)→ 2CO₂(g)+ 3H₂O(l) The maximum work that 1 mol of alcohol can yield by this process is 1320 kJ.What is the theoretical maximum voltage that this cell can achieve?

Given: Mn²⁺(aq)+ 2e^- Mn(s); E° = -1.18 V Cu²⁺(aq)+ 2e^- Cu(s); E° = 0.34 V Cr₂O₇^2-(aq)+ 14H⁺(aq)+ 6e^- 2Cr³⁺(aq)+ 7H₂O(l); E° = 1.33 V Which of the following species is the strongest reducing agent?

For a galvanic cell using Fe | Fe²⁺(1.0 M)and Pb | Pb²⁺(1.0 M)half-cells,which of the following statements is correct? Fe²⁺(aq)+ 2e^- → Fe(s); E° = -0.41 V Pb²⁺(aq)+ 2e^- → Pb(s); E° = -0.13 V

What is the cell reaction for the following voltaic cell? Cr(s)| Cr³⁺(aq)|| Br^-(aq)| Br₂(g)| Pt(s)

Given: Li⁺(aq)+ e^- Li(s); E° = -3.04 V Mg²⁺(aq)+ 2e^- Mg(s); E° = -2.38 V Fe²⁺(aq)+ 2e^- Fe(s); E° = -0.41 V Ag⁺(aq)+ e^- Ag(s); E° = 0.80 V Br₂(l)+ 2e^- 2Br^-(aq); E° = 1.07 V Which of the following species is the best oxidizing agent?

In the following electrochemical cell,what is the reduction half reaction? Mn(s)| Mn²⁺(aq)|| Fe³⁺(aq),Fe²⁺(aq)| Pt(s)

What is the cell reaction for the following electrochemical cell? Zn | Zn²⁺(aq)|| Sc³⁺(aq)| Sc

The cell potential of an electrochemical cell with the cell reaction 2Al(s)+ 3Zn²⁺(aq)→ 3Zn(s)+ 2Al³⁺(aq) Is 1.607 V.What is the maximum electrical work obtainable from this cell when 2.0 mol of Al is consumed?

If the cell is initially at standard-state conditions,which of the following statements is true? Zn²⁺(aq)+ 2e^- Zn(s); E° = -0.76 V Cu²⁺(aq)+ 2e^- Cu(s); E° = 0.34 V

Given: Zn²⁺(aq)+ 2e^- Zn(s); E° = -0.76 V Cu²⁺(aq)+ 2e^- Cu(s); E° = 0.34 V Cr₂O₇^2-(aq)+ 14H⁺(aq)+ 6e^- 2Cr³⁺(aq)+ 7H₂O(l); E° = 1.33 V Which of the following species is the strongest oxidizing agent?