EBK EXPLORING CHEMICAL ANALYSIS
EBK EXPLORING CHEMICAL ANALYSIS
5th Edition
ISBN: 9781319416942
Author: Harris
Publisher: VST
Question
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Chapter 14, Problem 14.1P

(a)

Interpretation Introduction

Interpretation:

Difference between electric charge, electric current and electric potential has to be determined.

Concept Introduction:

Redox reaction is reaction that includes change in oxidation number of molecule, atom or ion and this changes are due to transfer of electron from one species to another. A complete reaction involves oxidation and reduction.

Oxidation process represents loss of electrons while reduction process represents gain of electrons. Oxidation numbers are the part of system that is formed to track electrons in reaction.

(a)

Expert Solution
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Explanation of Solution

Electric charge is defined as physical property of matter due to that it experiences a force when placed in electric field and it is denoted by q. On other hand, electric current is defined as flow of electric charge. Electric charge is carried by ions and electrolytes. It is denoted by I.

Electric potential is used to measure the ability of voltaic cell to produce electric current and measured in volts (V).

(b)

Interpretation Introduction

Interpretation:

Number of electrons in one coulomb has to be determined.

Concept Introduction:

Electric charge is defined as physical property of matter due to that it experiences a force when placed in electric field and it is denoted by q. On other hand, electric current is defined as flow of electric charge. Electric charge is carried by ions and electrolytes. It is denoted by I.

(b)

Expert Solution
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Explanation of Solution

Unit of electric charge is coulombs. Magnitude of charge of 1 proton is 1.602×1019 C and therefore, number of electrons in one coulomb is calculated as follows:

  Number of electrons in one coulomb=1e1.602×1019 C=6.242×1018e/C

(c)

Interpretation Introduction

Interpretation:

Number of coulomb in 1mol of charge has to be determined.

Concept Introduction:

Refer to part (b).

(c)

Expert Solution
Check Mark

Explanation of Solution

Unit of electric charge is coulombs. Magnitude of charge of 1 proton is 1.602×1019 C and therefore, number of coulomb in one 1mole of charge is calculated as follows:

  Number of coulomb in 1mol of charge=(1.602×1019 C)(6.022×1023/mol)=96485C/mol

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