Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Textbook Question
Chapter 7, Problem 8E
What prevents large amounts of high-energy UV and X-ray light from reaching Earth’s surface, where it can adversely affect humans?
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Chapter 7 Solutions
Chemistry In Focus
Ch. 7 - Prob. 7.1YTCh. 7 - The lasers used in supermarket scanners emit red...Ch. 7 - Which photons contain more energy, X-ray photons...Ch. 7 - Arrange the kinds of light listed below in order...Ch. 7 - Prob. 1ECh. 7 - What kinds of molecules are responsible for the...Ch. 7 - Prob. 3ECh. 7 - Prob. 4ECh. 7 - What is the relationship between the wavelength of...Ch. 7 - Prob. 6E
Ch. 7 - Prob. 7ECh. 7 - What prevents large amounts of high-energy UV and...Ch. 7 - Prob. 9ECh. 7 - Prob. 10ECh. 7 - Prob. 11ECh. 7 - Prob. 12ECh. 7 - Prob. 13ECh. 7 - Prob. 14ECh. 7 - Prob. 15ECh. 7 - Prob. 16ECh. 7 - Describe how a laser works.Ch. 7 - Classify each of the following lasers as to type...Ch. 7 - Prob. 19ECh. 7 - Prob. 20ECh. 7 - Prob. 21ECh. 7 - Prob. 22ECh. 7 - Prob. 23ECh. 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 - Prob. 29ECh. 7 - Arrange the following three frequencies of light...Ch. 7 - Prob. 31ECh. 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 - Prob. 35ECh. 7 - Prob. 36ECh. 7 - Prob. 37ECh. 7 - Prob. 38ECh. 7 - Calculate the wavelength of the radio waves used...Ch. 7 - Calculate the wavelength of the radio waves used...Ch. 7 - Prob. 41ECh. 7 - Prob. 42ECh. 7 - Prob. 43ECh. 7 - A lamp emits red light of 671nm. What element is...Ch. 7 - Prob. 45ECh. 7 - Prob. 46ECh. 7 - Prob. 47ECh. 7 - Prob. 48ECh. 7 - Describe how white light interacts with a colored...Ch. 7 - Prob. 50ECh. 7 - Prob. 51ECh. 7 - Prob. 52ECh. 7 - Prob. 53ECh. 7 - Prob. 54ECh. 7 - Prob. 55ECh. 7 - Prob. 56ECh. 7 - Prob. 57ECh. 7 - Prob. 58ECh. 7 - Prob. 59E
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Sunburn is caused by ultraviolet UV radiation. Why does red light not cause sunburn?arrow_forward3. Exposing yourself to the sun means exposure to many types of electromagnetic radiation: UV, visible, IR, etc. Which of these radiations would you expect to be most harmful? Explain. Sunlight at the top of a high mountain is more harmful than that at sea level. Why?arrow_forwardWhich of the following events may occur when IR radiation is absorbed?arrow_forward
- Explain X-ray spectrum.arrow_forwardWhat are the following abbreviations stands for? ESI, TOF, MALDI, NMR, IR, UV-Vis.arrow_forwardCalculate the wavelength of photons absorbed in molecules with 5, 7, 9, and 11 double bonds (DB) when electrons transition from the HOMÓ (level n) to the next level above the LUMO (level n+2) Calculate the wavelengths of photons absorbed in molecules with 5, 7, 9, and 11 double bonds (DB) when electrons transition from the HOMO (level n) to the next level above the LUMO (level n+2). n=6 n-5 LUMO n-4 HOMO n=3 n=2 n=1 (a) Wavelength for 5 DB nm (b) Wavelength for 7 DB nm () Wavelength for 9 DB- nm (d) Wavelength for 11 DB= nm Plot a graph of absorption wavelength vs. the number of double bonds. What type of graph is this? Opower law Cexponential linear Oparabolicarrow_forward
- 9. A few people in your neighborhood are protesting the erection of a 5G cell tower. They claim the radio waves from the tower will be damaging to human health, specifically leading to headaches, migraines, and dizziness. Using what you know about electromagnetic radiation and how it interacts with matter, which side of the protest would you be on? Why? Consider where radio waves fall on the electromagnetic spectrum and how you've seen radiation interact with parts the human body throughout this unit. (Note: this is something that really happened in Prof. Kerstiens' neighborhood. Also note that this does not include concerns about 5G power usage, impact on ecosystems, or waste production in making new cell towers and equipment.)arrow_forwardDescribe briefly the atomic or molecular processes involved in the production of X -rays and Infrared radiation.arrow_forwardOrganic molecules (that contain carbon and other elements) are often probed using IR radiation. Certain bonds within the molecules vibrate at certain frequencies. If the carbon-oxygen bond in a molecule absorbs radiation of wavelength 9.6 μm, what frequency is that radiation?arrow_forward
- Explain in your own words and using complete English sentences how the wavelength of the light that a dye absorbs relates to the color that the dye appears to the eye.arrow_forwardArrange the kinds of light listed below in order of increasing wavelength: Red visible light, blue visible light, infrared light, and X-rays X-ray blue visible red visible infrared infrared red visible blue visible X-ray blue visible red visible X-ray infraredarrow_forwardPlace the following types of radiation in order of increasing wavelength by numbering them from 1 (lowest) to 4 (greatest). 1024 1022 y-rays 1020 10-16 10-14 10-12 3 1018 x-rays 10-10 microwaves in a microwave oven 2 1016 UV yellow light from a sodium lamp x-rays from an instrument in a dentist's office 10-8 1014 10-6 4 IR 10¹2 10-4 1010 3 108 Microwave FM 10-² AM Radio waves your favorite FM music station at 91.7 MHz Drag and drop your selection from the following list to complete the answer: 10⁰ 106 4 10² 104 104 10² 1 Long radio waves 10⁰ 105 108 v (Hz) A (m)arrow_forward
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