(a) Interpretation: The theoretical potential of the cell SCE || Fe 3 + ( 0.0150 M), Fe 2 + ( 0.0250 M)| Pt should be calculated. Concept introduction: Nernst equation gives the cell potential under non-standard conditions. E = E 0 − 2.303 R T n F log Q E − cell potential E 0 − standard cell potential R − universal gas constant T − temperature in Kelvin n − number of electrons transferred F − Faraday constant Q − Reaction quotient E c e l l = E c a t h o d e 0 − E a n o d e 0

Question

The standard reduction potential of the zinc cation is -0.76 V. The measured cell potential for the cell Zn(s) | Zn2+ (aq) || H+ (aq, 1 M) | H₂ (g, 1 bar) | Pt(s) is 0.81V at 25°C. What is the concentration of Zn2+ (aq) (in mol L-¹)? 0.02 02 O 0.1 04 07

Answer 1

Question

Chapter 23, Problem 23.13QAP

Interpretation Introduction

(a)

Interpretation:

The theoretical potential of the cell SCE || Fe3+(0.0150 M), Fe2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(b)

Interpretation:

The theoretical potential of the cell SCE || Zn2+(0.00135 M)| Zn should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(c)

Interpretation:

The theoretical potential of the cell Saturated Ag/AgCl reference || Ti3+(0.0450 M), Ti2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(d)

Interpretation:

The Theoretical potential of the cell Saturated Ag/AgCl reference || I3−(0.00667 M), I−(0.00433 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

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The standard reduction potential of the zinc cation is -0.76 V. The measured cell potential for the cell Zn(s) | Zn2+ (aq) || H+ (aq, 1 M) | H₂ (g, 1 bar) | Pt(s) is 0.81V at 25°C. What is the concentration of Zn2+ (aq) (in mol L-¹)? 0.02 02 O 0.1 04 07

The cell Ag|AgCl(sat'd)||H+(a=x)glass electrode has a potential of -0.2094V when tne solution in the right hand compartment is a buffer of pH 4.006. The following potential are obtained when the buffer is replaced with unknowns:(a)-0.2806V and (b)-0.2132V. Calculate the pH and the hydrogen ion activity of each unknown.(c)Assuming an uncertainty of 0.001V in the junction potential,what is range of hydrogen ion activities within which the true value might be expected to lie?

Q.1 (a) Calculate the emf of the cell Zn|Zn*2 (0.001IM)||Ag* (0.1M)|Ag The standard potential of Ag /Ag* half cell is +0.80 V and Zn/Zn²+ is -0.76 V. (b) What is the potential of a half cell consisting of zinc electrode in 0.01 M Zn SO4 solution at 25 °C, E°=0.763 V.

Answer 2

Question

Chapter 23, Problem 23.13QAP

Interpretation Introduction

(a)

Interpretation:

The theoretical potential of the cell SCE || Fe3+(0.0150 M), Fe2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(b)

Interpretation:

The theoretical potential of the cell SCE || Zn2+(0.00135 M)| Zn should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(c)

Interpretation:

The theoretical potential of the cell Saturated Ag/AgCl reference || Ti3+(0.0450 M), Ti2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(d)

Interpretation:

The Theoretical potential of the cell Saturated Ag/AgCl reference || I3−(0.00667 M), I−(0.00433 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

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Answer 3

Question

Chapter 23, Problem 23.13QAP

Interpretation Introduction

(a)

Interpretation:

The theoretical potential of the cell SCE || Fe3+(0.0150 M), Fe2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(b)

Interpretation:

The theoretical potential of the cell SCE || Zn2+(0.00135 M)| Zn should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(c)

Interpretation:

The theoretical potential of the cell Saturated Ag/AgCl reference || Ti3+(0.0450 M), Ti2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(d)

Interpretation:

The Theoretical potential of the cell Saturated Ag/AgCl reference || I3−(0.00667 M), I−(0.00433 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Expert Solution & Answer

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Answer 4

Question

Chapter 23, Problem 23.13QAP

Interpretation Introduction

(a)

Interpretation:

The theoretical potential of the cell SCE || Fe3+(0.0150 M), Fe2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(b)

Interpretation:

The theoretical potential of the cell SCE || Zn2+(0.00135 M)| Zn should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(c)

Interpretation:

The theoretical potential of the cell Saturated Ag/AgCl reference || Ti3+(0.0450 M), Ti2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(d)

Interpretation:

The Theoretical potential of the cell Saturated Ag/AgCl reference || I3−(0.00667 M), I−(0.00433 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Expert Solution & Answer

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Answer 5

Chapter 23, Problem 23.13QAP

Interpretation Introduction

(a)

Interpretation:

The theoretical potential of the cell SCE || Fe3+(0.0150 M), Fe2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(b)

Interpretation:

The theoretical potential of the cell SCE || Zn2+(0.00135 M)| Zn should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(c)

Interpretation:

The theoretical potential of the cell Saturated Ag/AgCl reference || Ti3+(0.0450 M), Ti2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Interpretation Introduction

(d)

Interpretation:

The Theoretical potential of the cell Saturated Ag/AgCl reference || I3−(0.00667 M), I−(0.00433 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Answer 6

Chapter 23, Problem 23.13QAP

Interpretation Introduction

(a)

Interpretation:

The theoretical potential of the cell SCE || Fe3+(0.0150 M), Fe2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Answer 7

Chapter 23, Problem 23.13QAP

Interpretation Introduction

(a)

Interpretation:

The theoretical potential of the cell SCE || Fe3+(0.0150 M), Fe2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Answer 8

Interpretation Introduction

(b)

Interpretation:

The theoretical potential of the cell SCE || Zn2+(0.00135 M)| Zn should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Answer 9

Interpretation Introduction

(b)

Interpretation:

The theoretical potential of the cell SCE || Zn2+(0.00135 M)| Zn should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Answer 10

Interpretation Introduction

(c)

Interpretation:

The theoretical potential of the cell Saturated Ag/AgCl reference || Ti3+(0.0450 M), Ti2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Answer 11

Interpretation Introduction

(c)

Interpretation:

The theoretical potential of the cell Saturated Ag/AgCl reference || Ti3+(0.0450 M), Ti2+(0.0250 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Answer 12

Interpretation Introduction

(d)

Interpretation:

The Theoretical potential of the cell Saturated Ag/AgCl reference || I3−(0.00667 M), I−(0.00433 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Answer 13

Interpretation Introduction

(d)

Interpretation:

The Theoretical potential of the cell Saturated Ag/AgCl reference || I3−(0.00667 M), I−(0.00433 M)| Pt should be calculated.

Concept introduction:

Nernst equation gives the cell potential under non-standard conditions.

E=E0−2.303RTnFlogQ

E − cell potential

E⁰ − standard cell potential

R − universal gas constant

T − temperature in Kelvin

n − number of electrons transferred

F − Faraday constant

Q − Reaction quotient

Ecell=Ecathode0−Eanode0

Answer 14

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Ch. 23 - Prob. 23.1QAP Ch. 23 - Prob. 23.2QAP Ch. 23 - Prob. 23.3QAP Ch. 23 - Prob. 23.4QAP Ch. 23 - Prob. 23.5QAP Ch. 23 - Prob. 23.6QAP Ch. 23 - Prob. 23.7QAP Ch. 23 - Prob. 23.8QAP Ch. 23 - Prob. 23.9QAP Ch. 23 - List the advantages and disadvantages of a...

Chapter 23 Solutions