Chemistry In Focus
6th Edition
ISBN: 9781305084476
Author: Tro, Nivaldo J., Neu, Don.
Publisher: Cengage Learning
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Chapter 7, Problem 30E
Arrange the following three
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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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- 6.12 Find the energy of a photon with each of the following frequencies (see Table 1.2 if needed). (a) 15.3 THz, (b) 1.7 EHz, (c) 6.221010 Hzarrow_forwardAnswer the following questions about a Blu-ray laser: (a) The laser on a Blu-ray player has a wavelength of 405 nm. In what region of the electromagnetic spectrum is this radiation? What is its frequency? (b) A Blu-ray laser has a power of 5 millwatts (1watt=1Js1). How many photons of light are produced by the laser in 1 hour? (c) The ideal resolution of a player using a laser (such as a Blu-ray player), which determines how close together data can be stored on a compact disk, is determined using the following formula: Resolution =0.60(/NA), where A is the wavelength of the laser and NA is the numerical aperture. Numerical aperture is a measure of the size of the spot of light on the disk; the larger the NA, the smaller the spot. In a typical Blu-ray system, NA = 0.95. If the 405-nm laser is used in a Blu-ray player, what is the closest that information can be stored on a Blu-ray disk? (d) The data density of a Blu-ray disk using a 405-nm laser is 1.5107 bits mm2. Disks have an outside diameter of 120 mm and a hole of 15-mm diameter. How many data bits can be contained on the disk? If a Blu-ray disk can hold 9,400,000 pages of text, how many data bits are needed for a typed page? (Hint: Determine the area of the disk that is available to hold data. The area inside a circle is given by A=r2, where the radius r is one-half of the diameter.)arrow_forwardMicrowaves have frequencies in the range 109 to 1012/s (cycles per second), equivalent to between 1 gigahertz and 1 terahertz. What is the wavelength of microwave radiation whose frequency is 1.395 1010/s?arrow_forward
- Which photons contain more energy, X-ray photons with a frequency of 31017 Hz or ultraviolet photons with a frequency of 21015 Hz? X-ray photons Ultraviolet photons Neither. They both contain the same energy per photon.arrow_forwardThe lasers used in supermarket scanners emit red light at a wavelength of 633 nm. Compact disc players use lasers that emit light (that is not visible) at 840 nm. Which photonsthose emitted by supermarket scanners or compact disc (CD) playerscontain more energy per photon? Supermarket scanners CD players They both contain the same amount of energy per photon.arrow_forwardAn atom in its ground state absorbs a photon (photon 1), then quickly emits another photon (photon 2). One of these photons corresponds to ultraviolet radiation, whereas the other one corresponds to red light. Explain what is happening. Which electromagnetic radiation, ultraviolet or red light, is associated with the emitted photon (photon 2)?arrow_forward
- Consider a large number of hydrogen atoms with electrons randomly distributed in the n = 1, 2, 3, and 4 orbits. (a) How many different wavelengths of light are emitted by these atoms as the electrons fall into lower-energy orbitals? (b) Calculate the lowest and highest energies of light produced by the transitions described in part (a). (c) Calculate the frequencies and wavelengths of the light produced by the transitions described in part (b).arrow_forwardThe eyes of certain reptiles pass a single visual signal to the brain when the visual receptors are struck by photons of a wavelength of 850 nm. If a total energy of 3.151014 J is required to trip the signal, what is the minimum number of photons that must strike the receptor?arrow_forwardOne type of electromagnetic radiation has a frequency of 107.1 MHz, another type has a wavelength of 2.12 1010 m, and another type of electromagnetic radiation has photons with energy equal to 3.97 1019 J/pboton. Identify each type of electromagnetic radiation and place them in order of increasing photon energy and increasing frequency.arrow_forward
- Radio waves in the AM region have frequencies in the range 530 to 1700 kilocycles per second (530 to 1700 kHz). Calculate the wavelength corresponding to a radio wave of frequency 1.460 106/s (that is, 1460 kHz).arrow_forwardOne type of solar radiation in the upper atmosphere has a frequency of 7.898 1014 Hz; another type has a frequency of 1.20 1015 Hz. (a) In what region of the electromagnetic spectrum does this solar radiation occur? (b) Which of the two types of radiation has the shorter wavelength? Explain your answer.arrow_forward
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