How sodium perborate and sodium percarbonate work as bleaches must be explained. Concept Introduction: A bleaching agent is a substance that is used to decolorize other materials. Colored materials have a group of atoms in their chemical structure that can absorb visible light of a particular color. These groups of atoms are known as chromophores. Chromophores absorb visible light of a particular color and reflect the complementary color. Bleaching agents destroy the chromophores, by either oxidation or reduction. Bleaching agents such as hypochlorite are oxidizing bleaches. Oxidizing bleaches work by breaking the chemical bonds in the chromophores of substances. This is done by oxidizing the chromophore breaking the chemical bonds change the chromophore of a substance thereby decolorizing it. Bleaches are either chlorine based, or oxygen based. Chlorine bleaches mainly contain hypochlorite and oxygen bleaches mainly contain perborates or percarbonates.

Question

Want to see the full answer?

Answer 1

Question

Chapter 21, Problem 41P

Interpretation Introduction

Interpretation:

How sodium perborate and sodium percarbonate work as bleaches must be explained.

Concept Introduction:

A bleaching agent is a substance that is used to decolorize other materials.

Colored materials have a group of atoms in their chemical structure that can absorb visible light of a particular color. These groups of atoms are known as chromophores. Chromophores absorb visible light of a particular color and reflect the complementary color.

Bleaching agents destroy the chromophores, by either oxidation or reduction.

Bleaching agents such as hypochloriteare oxidizing bleaches. Oxidizing bleaches work by breaking the chemical bonds in the chromophores of substances.

This is done by oxidizing the chromophore breaking the chemical bonds change the chromophore of a substance thereby decolorizing it.

Bleaches are either chlorine based, or oxygen based. Chlorine bleaches mainly contain hypochlorite and oxygen bleaches mainly contain perborates or percarbonates.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Suppose sodium sulfate has been gradually added to 100 mL of a solution containing calcium ions and strontium ions, both at 0.15 mol/L. Indicate the alternative that presents the percentage of strontium ions that will have precipitated when the calcium sulfate begins to precipitate. Data: Kps of calcium sulfate: 2.4x10 ⁻ ⁵; Kps of strontium sulfate: 3.2x10 ⁻ ⁷ A) 20,2 % B) 36,6 % C) 62,9 % D) 87,5 % E) 98.7%

14:43 A Candidate Identification docs.google.com 14. The following diagrams represent hypothetical membrane structures with their components numbered from 1 to 6. Based on the figures and your knowledge of biological membranes, select the correct alternative. | 3 5 || 人 2 500000 6 A) Structures 1, 3, 5, 2 and 4 are present in a constantly fluid arrangement that allows the selectivity of the movement ○ of molecules. Structure 4, present integrally or peripherally, is responsible for this selection, while the quantity of 6 regulates the fluidity. B) The membranes isolate the cell from the environment, but allow the passage of water-soluble molecules thanks to the presence of 2 and 3. The membrane in scheme is more fluid than that in 55

12. Mark the correct statement about reactions a and b : a. Br + -OH Br b. + Br H₂O + Br -OH + H₂O A) The reactions are elimination reactions, with reaction "a" being of type E2 and reaction "b" being of type E1. B) Reaction "a" is an E2 type elimination occurring in one step and reaction "b" is an SN1 type substitution. C) Both reactions can result in the formation of carbocation, but in reaction "b" the most stable carbocation will be formed. D) Both reactions occur at the same rate ○ and have the same number of reaction steps. E) Reaction "b" is an E2 type elimination occurring in two steps and reaction "a" is an SN2 type substitution.