Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Can you help me solve number 7
Transcribed Image Text:Directions: Complete this worksheet on a separate piece of paper. Show all equations,
work, units, and 3 significant figures for full credit. Below are equations and conversions
that you may find useful.
C = Av
C = 3.00 x 10° m/s
hc
E = hv = -
h = 6.626 x 1034 J•s
1 nm = 10° m
1. An AM station broadcasts rock music at “950 on your radio dial." Units for AM
frequencies are given in kilohertz (kHz). Find the wavelength of the station's
radio waves in meters (m) and nanometers (nm).
2. An FM station broadcasts music at 93.5 MHz (Megahertz or 10° Hz). Find the
wavelength in m an nm of these waves.
3. A radio wave has a frequency of 3.8 x 101º Hz. What is the energy (in J) of one
photon of this radiation?
4. An x-ray has a wavelength of 1.3 x 10-10. Calculate the energy (in J) of one
photon of this radiation.
5. Rand the following photons in terms of increasing energy: blue (2 = 453 nm), red
(2 = 660 nm), and yellow (, = 595 nm).
6. Rand the following photons in terms of decreasing energy: IR (v= 6.5 x 1013 Hz),
microwave (v = 9.8 x 10" Hz), and UV (v = 8.0 x 1015 Hz).
7. What is the wavelength of a wave having a frequency of 3.76 x 1014 Hz?
8. What is the frequency of a 6.9 x 10-13 m wave?
9. What is the frequency of a 2,600 cm (1 cm = 10² m) wave?
10. What is the wavelength of a 109.6 MHz (Megahertz or 10° Hz) wave?
11. What is the frequency of a wave carrying 8.35 x 10'18 J of energy?
12. What is the frequency of a 1.31 x 10-2! J wave? What is its wavelength?
13. What is the energy of a 9,300 cm (1 cm = 10² m) wave?
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