BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 7, Problem 53E
Textbook Problem
3 views

Explain why some clothes glow under black light and others do not.

Interpretation Introduction

Interpretation:

The principle behind the fact that some clothes glow under the black light and others do not is to be explained.

Concept Introduction:

The ultraviolet radiation is high energy radiation of short wavelengths, which is not visible to human eyes. These are emitted by hot objects, like the sun or stars.

Light has both particle and wave properties; hence, it has dual characteristics.

Wavelength of light determines both its color and energy.

Electromagnetic radiation ranges in wavelengths from gamma waves region to radio waves region.

Explanation of Solution

In any substance, when atoms or molecules absorb certain wavelengths of light, they reflect the color which is not absorbed by it. When an atom or molecule absorbs light, the electrons get excited from low energy level to high energy level, and during this, they release the energy in the form of radiations.

Ultraviolet radiation is invisible to the human eyes and is high in energy. This is also called the black light...

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Chapter 7 Solutions

Chemistry In Focus
Show all chapter solutions
add
Ch. 7 - What is the function of sunscreen and of UV...Ch. 7 - What prevents large amounts of high-energy UV and...Ch. 7 - What is unique about X-rays?Ch. 7 - What does the MHz dial on a radio signify?Ch. 7 - Explain how night vision works. How do microwave...Ch. 7 - What are phosphorescence and fluorescence? How do...Ch. 7 - What is spectroscopy?Ch. 7 - What is nuclear magnetic resonance (NMR)?Ch. 7 - How does magnetic resonance imaging (MRI) work?Ch. 7 - Describe the difference between laser light and...Ch. 7 - Describe how a laser works.Ch. 7 - Classify each of the following lasers as to type...Ch. 7 - What is unique about a dye laser?Ch. 7 - Why have semiconductor lasers become common in...Ch. 7 - What are the advantages of using laser light in...Ch. 7 - Describe the light-related discoveries of each of...Ch. 7 - Speed of Light The Sun is 1.5108km from Earth. How...Ch. 7 - The speed of sound is 330m/s. If fireworks are...Ch. 7 - The nearest star, Alpha Centauri, is 4.3 light-...Ch. 7 - Counting the seconds between a flash of lightning...Ch. 7 - Make a drawing, such as Figure 7.3, which shows...Ch. 7 - Make a drawing, such as Figure 7.3, which shows...Ch. 7 - Arrange the following three wavelengths of light...Ch. 7 - Arrange the following three frequencies of light...Ch. 7 - Which of the following types of light would be...Ch. 7 - Which wavelength of light is most likely to cause...Ch. 7 - List two types of electromagnetic radiation that...Ch. 7 - List two types of electromagnetic radiation that...Ch. 7 - Wavelength and Frequency Make a sketch...Ch. 7 - The violet edge of the visible spectrum occurs at...Ch. 7 - Of the following types of electromagnetic...Ch. 7 - Of the following types of electromagnetic...Ch. 7 - Calculate the wavelength of the radio waves used...Ch. 7 - Calculate the wavelength of the radio waves used...Ch. 7 - Cellular phones operate at frequencies of...Ch. 7 - If an FM radio wave signal has a wavelength of...Ch. 7 - Absorption of Light and Spectroscopy Light from a...Ch. 7 - A lamp emits red light of 671nm. What element is...Ch. 7 - Light from a distant star is analyzed and found to...Ch. 7 - Light from a fluorescent light source is analyzed...Ch. 7 - Light from a fluorescent light source is analyzed...Ch. 7 - A surgeon plans to remove a red port-wine stain....Ch. 7 - Describe how white light interacts with a colored...Ch. 7 - How would our lives change if our eyes could see...Ch. 7 - A look at the entire spectrum of light reveals...Ch. 7 - A stereotypical philosophical question is, If a...Ch. 7 - Explain why some clothes glow under black light...Ch. 7 - MRI has been able to trace specific brain...Ch. 7 - Read the box What if... X-Rays-Dangerous or...Ch. 7 - Read the box What if... The Mind-Body Problem in...Ch. 7 - The following drawing shows white light passing...Ch. 7 - The following shows two pictures of the same...Ch. 7 - Read the box What if... The Cost of Technology in...

Additional Science Textbook Solutions

Find more solutions based on key concepts
Show solutions add
Bile is essential for fat digestion because it splits triglycerides into fatty acids and glycerol. emulsifies f...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Distinguish between irreversible and reversible enzyme inhibition.

Chemistry for Today: General, Organic, and Biochemistry

How can solar flares affect Earth?

Horizons: Exploring the Universe (MindTap Course List)

In the following diagram, designate each daughter cell as diploid (2n) or haploid (n).

Human Heredity: Principles and Issues (MindTap Course List)

What are water masses? What determines their relative position in the ocean?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin

A crate of weight Fg is pushed by a force P on a horizontal floor as shown in Figure P5.45. The coefficient of ...

Physics for Scientists and Engineers, Technology Update (No access codes included)