Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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=E02.303RTnFlogQ

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=Ecathode0Eanode0

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=E02.303RTnFlogQ

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=Ecathode0Eanode0

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=E02.303RTnFlogQ

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=Ecathode0Eanode0

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=E02.303RTnFlogQ

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=Ecathode0Eanode0

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