Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN: 9780078746376
Author: Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher: Glencoe/McGraw-Hill School Pub Co
Question
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Chapter 20.1, Problem 6PP
Interpretation Introduction

Interpretation:

The given cell reaction is to be balanced and the cell potential is to be determined.

Concept introduction:

An electrochemical reaction is balanced by balancing the oxidation number on both side of the reaction. The difference between the electrode potential of the two electrodes consisting an electrochemical cell is known as cell potential

Expert Solution & Answer
Check Mark

Answer to Problem 6PP

The half cell reaction at anode

Mg(s)Mg+2(aq)+2e-

The half cell reaction at cathode is

Pb+2(aq)+2e-Pb(s)

ThebalancedoverallreactionisMg(s)+ Pb+2(aq)Mg+2(aq)+ Pb(s)ThecellreprsentationofthisoverallreactionisMg|Mg+2Pb+2|PbThe oxidation is occur at Mg electrode or anode and reduction is occurs at Pb electrode or cathode.The cell potental of the reaction is calculated ascell=E°cathode-E°anode=(-0.1262)-(-2.372)= 2.246VThe cell potential is 2.246V

Explanation of Solution

The half cell reaction at anode

Mg(s)Mg+2(aq)+2e-

The half cell reaction at cathode is

Pb+2(aq)+2e-Pb(s)

ThebalancedoverallreactionisMg(s)+ Pb+2(aq)Mg+2(aq)+ Pb(s)ThecellreprsentationofthisoverallreactionisMg|Mg+2Pb+2|PbThe oxidation is occur at Mg electrode or anode and reduction is occurs at Pb electrode or cathode.The cell potental of the reaction is calculated ascell=E°cathode-E°anode=(-0.1262)-(-2.372)= 2.246VThe cell potential is 2.246V

Conclusion

ThebalancedoverallreactionisMg(s)+ Pb+2(aq)Mg+2(aq)+ Pb(s)ThecellreprsentationofthisoverallreactionisMg|Mg+2Pb+2|PbThe oxidation is occur at Mg electrode or anode and reduction is occurs at Pb electrode or cathode.The cell potential is 2.246V

Chapter 20 Solutions

Chemistry: Matter and Change

Ch. 20.1 - Prob. 11SSCCh. 20.1 - Prob. 12SSCCh. 20.1 - Prob. 13SSCCh. 20.1 - Prob. 14SSCCh. 20.2 - Prob. 15SSCCh. 20.2 - Prob. 16SSCCh. 20.2 - Prob. 17SSCCh. 20.2 - Prob. 18SSCCh. 20.2 - Prob. 19SSCCh. 20.2 - Prob. 20SSCCh. 20.2 - Prob. 21SSCCh. 20.3 - Prob. 22SSCCh. 20.3 - Prob. 23SSCCh. 20.3 - Prob. 24SSCCh. 20.3 - Prob. 25SSCCh. 20.3 - Prob. 26SSCCh. 20.3 - Prob. 27SSCCh. 20.3 - Prob. 28SSCCh. 20.3 - Prob. 29SSCCh. 20 - Prob. 30ACh. 20 - Prob. 31ACh. 20 - Prob. 32ACh. 20 - Prob. 33ACh. 20 - Prob. 34ACh. 20 - Prob. 35ACh. 20 - Prob. 36ACh. 20 - Prob. 37ACh. 20 - Prob. 38ACh. 20 - Prob. 39ACh. 20 - Prob. 40ACh. 20 - Prob. 41ACh. 20 - Prob. 42ACh. 20 - Prob. 43ACh. 20 - Prob. 44ACh. 20 - Prob. 45ACh. 20 - Prob. 46ACh. 20 - Prob. 47ACh. 20 - Prob. 48ACh. 20 - Prob. 49ACh. 20 - Prob. 50ACh. 20 - Prob. 51ACh. 20 - Prob. 52ACh. 20 - Prob. 53ACh. 20 - Prob. 54ACh. 20 - Prob. 55ACh. 20 - Prob. 56ACh. 20 - Prob. 57ACh. 20 - Prob. 58ACh. 20 - Prob. 59ACh. 20 - Prob. 60ACh. 20 - Prob. 61ACh. 20 - Prob. 62ACh. 20 - Prob. 63ACh. 20 - Prob. 64ACh. 20 - Prob. 65ACh. 20 - Prob. 66ACh. 20 - Prob. 67ACh. 20 - Prob. 68ACh. 20 - Prob. 69ACh. 20 - Prob. 70ACh. 20 - Prob. 71ACh. 20 - Prob. 72ACh. 20 - Prob. 73ACh. 20 - Prob. 74ACh. 20 - Prob. 75ACh. 20 - Prob. 76ACh. 20 - Prob. 77ACh. 20 - Prob. 78ACh. 20 - Prob. 79ACh. 20 - Prob. 80ACh. 20 - Prob. 81ACh. 20 - Prob. 82ACh. 20 - Prob. 83ACh. 20 - Prob. 84ACh. 20 - Prob. 85ACh. 20 - Prob. 86ACh. 20 - Prob. 87ACh. 20 - Prob. 88ACh. 20 - Prob. 89ACh. 20 - Prob. 90ACh. 20 - Prob. 91ACh. 20 - Prob. 92ACh. 20 - Prob. 93ACh. 20 - Prob. 94ACh. 20 - Prob. 95ACh. 20 - Prob. 96ACh. 20 - Prob. 97ACh. 20 - Prob. 98ACh. 20 - Prob. 1STPCh. 20 - Prob. 2STPCh. 20 - Prob. 3STPCh. 20 - Prob. 4STPCh. 20 - Prob. 5STPCh. 20 - Prob. 6STPCh. 20 - Prob. 7STPCh. 20 - Prob. 8STPCh. 20 - Prob. 9STPCh. 20 - Prob. 10STPCh. 20 - Prob. 11STPCh. 20 - Prob. 12STPCh. 20 - Prob. 13STPCh. 20 - Prob. 14STPCh. 20 - Prob. 15STP

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