Chemistry 2012 Student Edition (hard Cover) Grade 11
12th Edition
ISBN: 9780132525763
Author: Prentice Hall
Publisher: Prentice Hall
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Question
Chapter 23, Problem 71A
Interpretation Introduction
Interpretation: A permanent hair waving can change the shape of hair needs to be explained. Chemical steps to change the shape of someone’s hair from straight to curly should be described.
Concept Introduction: A
Expert Solution & Answer
Answer to Problem 71A
In permanent hair waving, hair is treated with a reducing agent followed by oxidizing agent confirming giving a new shape to hair from straight to curly.
Explanation of Solution
Given Information: Long-chain polymers make up human hair. Whether straight or curly the hair depends on where the disulfide linkages (S-S) are located between the polymers. Waving lotion in permanent waves is a type of reducing agent and neutralizing agent used is an oxidizing agent.
In the chemical treatment of permanent hair waving, hair is wound on rods and then, treated with a reducing agent (Thioglycolate) which reduces the Cysteine (Hair Protein), breaking the S-S bridge of the Cysteine molecule due to which the hair fiber gets weakened followed by the process of oxidation with Hydrogen Peroxide which locks the new molecular confirmation of hair Proteins and confirms to give new curly shape to the hair.
Conclusion
In permanent hair waving, hair is treated with a reducing agent followed by oxidizing agent confirming giving a new shape to hair from straight to curly.
Chapter 23 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
Ch. 23.1 - Prob. 1LCCh. 23.1 - Prob. 2LCCh. 23.1 - Prob. 3LCCh. 23.1 - Prob. 4LCCh. 23.1 - Prob. 5LCCh. 23.1 - Prob. 6LCCh. 23.1 - Prob. 7LCCh. 23.1 - Prob. 8LCCh. 23.2 - Prob. 9LCCh. 23.2 - Prob. 10LC
Ch. 23.2 - Prob. 11LCCh. 23.2 - Prob. 12LCCh. 23.2 - Prob. 13LCCh. 23.2 - Prob. 14LCCh. 23.2 - Prob. 15LCCh. 23.3 - Prob. 16LCCh. 23.3 - Prob. 17LCCh. 23.3 - Prob. 18LCCh. 23.3 - Prob. 19LCCh. 23.3 - Prob. 20LCCh. 23.3 - Prob. 21LCCh. 23.3 - Prob. 22LCCh. 23.3 - Prob. 23LCCh. 23.4 - Prob. 24LCCh. 23.4 - Prob. 25LCCh. 23.4 - Prob. 26LCCh. 23.4 - Prob. 27LCCh. 23.4 - Prob. 28LCCh. 23.4 - Prob. 29LCCh. 23.4 - Prob. 30LCCh. 23.4 - Prob. 31LCCh. 23 - Prob. 32ACh. 23 - Prob. 33ACh. 23 - Prob. 34ACh. 23 - Prob. 35ACh. 23 - Prob. 36ACh. 23 - Prob. 37ACh. 23 - Prob. 38ACh. 23 - Prob. 39ACh. 23 - Prob. 40ACh. 23 - Prob. 41ACh. 23 - Prob. 42ACh. 23 - Prob. 43ACh. 23 - Prob. 44ACh. 23 - Prob. 45ACh. 23 - Prob. 46ACh. 23 - Prob. 47ACh. 23 - Prob. 48ACh. 23 - Prob. 49ACh. 23 - Prob. 50ACh. 23 - Prob. 51ACh. 23 - Prob. 52ACh. 23 - Prob. 53ACh. 23 - Prob. 54ACh. 23 - Prob. 55ACh. 23 - Prob. 56ACh. 23 - Prob. 57ACh. 23 - Prob. 58ACh. 23 - Prob. 59ACh. 23 - Prob. 60ACh. 23 - Prob. 61ACh. 23 - Prob. 62ACh. 23 - Prob. 63ACh. 23 - Prob. 64ACh. 23 - Prob. 65ACh. 23 - Prob. 66ACh. 23 - Prob. 67ACh. 23 - Prob. 68ACh. 23 - Prob. 69ACh. 23 - Prob. 70ACh. 23 - Prob. 71ACh. 23 - Prob. 72ACh. 23 - Prob. 73ACh. 23 - Prob. 74ACh. 23 - Prob. 75ACh. 23 - Prob. 76ACh. 23 - Prob. 77ACh. 23 - Prob. 78ACh. 23 - Prob. 79ACh. 23 - Prob. 80ACh. 23 - Prob. 81ACh. 23 - Prob. 82ACh. 23 - Prob. 83ACh. 23 - Prob. 84ACh. 23 - Prob. 85ACh. 23 - Prob. 86ACh. 23 - Prob. 87ACh. 23 - Prob. 88ACh. 23 - Prob. 89ACh. 23 - Prob. 90ACh. 23 - Prob. 91ACh. 23 - Prob. 92ACh. 23 - Prob. 93ACh. 23 - Prob. 94ACh. 23 - Prob. 95ACh. 23 - Prob. 1STPCh. 23 - Prob. 2STPCh. 23 - Prob. 3STPCh. 23 - Prob. 4STPCh. 23 - Prob. 5STPCh. 23 - Prob. 6STPCh. 23 - Prob. 7STPCh. 23 - Prob. 8STPCh. 23 - Prob. 9STPCh. 23 - Prob. 10STPCh. 23 - Prob. 11STPCh. 23 - Prob. 12STPCh. 23 - Prob. 13STPCh. 23 - Prob. 14STPCh. 23 - Prob. 15STPCh. 23 - Prob. 16STPCh. 23 - Prob. 17STP
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