Chemistry in Context
8th Edition
ISBN: 9780073522975
Author: American Chemical Society
Publisher: McGraw-Hill Education
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Chapter 3.9, Problem 3.23YT
Interpretation Introduction
Interpretation:
- • The types of light that are emitted by the sun have to be found.
- • The type of light that makes up the largest percentage of sunlight has to be found.
Concept Introduction:
Sunlight is the light and energy that comes from the sun. Energy of the sun is felt in the form of heat energy whereas the light radiation of the sun can be observed as any one of the several of forms of
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Exercise I
be used in order to have this effect with all metals.
B/ Based on what we leam in the lecture about photoelectric effect ouE what would be the kinetic energy of a
light having a frequency of 3.5 x 10“Hz?
Mes
Data:
Work functions: Copper: 4.7 eV; Gold: 5.1 eV; Platinum: 6,35 eV
Conversion: 1 eV (electron volt) 1.602 x 10" Joules
Planck constant h: 6.626 x 10js
Homework-1
Exercise (1)
A laser used in eye surgery to
fuse detached retinas produces
radiation with a wavelength of
640.0 nm. Calculate the
frequency of this radiation?
Exercise (2)
An FM radio station broadcasts
electromagnetic radiation at a
frequency of 103.4 MHz
(megahertz; MHz = 10 s).
Calculate the wavelength of this
radiation.
SIMULATION Planck's Equation
Click on a region of the spectrum of visible light.
400
500
600
700
Wavelength (nm)
Frequency:
Wavelength:
Photon Energy:
200
400
600
800
Distance (nm)
Another way of writing the relationship between energy and frequency is
Ephoton
= constant x v.
What is the value of this constant, in units of J s?
Js
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Chapter 3 Solutions
Chemistry in Context
Ch. 3.1 - Prob. 3.3YTCh. 3.1 - You Decide Evaporating Coal Mines Writing in the...Ch. 3.2 - Prob. 3.6SCCh. 3.3 - Prob. 3.9YTCh. 3.4 - Prob. 3.10CTCh. 3.6 - Skill Building Isotopes of Nitrogen Nitrogen (N2)...Ch. 3.6 - You Decide Marshmallows and Pennies Avogadros...Ch. 3.7 - You Decide Checking Carbon from Cars A...Ch. 3.8 - Prob. 3.19YTCh. 3.8 - Prob. 3.20CT
Ch. 3.8 - Prob. 3.21CTCh. 3.9 - Prob. 3.22CTCh. 3.9 - Prob. 3.23YTCh. 3.9 - Prob. 3.24CTCh. 3.10 - Prob. 3.26CTCh. 3.10 - Prob. 3.27CTCh. 3.11 - Prob. 3.29CTCh. 3.11 - Prob. 3.30YTCh. 3.11 - Prob. 3.31YTCh. 3.11 - Prob. 3.32CTCh. 3.11 - You Decide Climate Change Insurance? Mitigation of...Ch. 3.11 - Prob. 3.34SCCh. 3.11 - Prob. 3.35CTCh. 3 - Prob. 3.1CTCh. 3 - The chapter concluded with a quote from John...Ch. 3 - Prob. 2QCh. 3 - Prob. 3QCh. 3 - Prob. 5QCh. 3 - a. It is estimated that 29 megajoules per square...Ch. 3 - Consider Figure 4.23. a. How does the present...Ch. 3 - Understanding Earths energy balance is essential...Ch. 3 - Explain each of these observations. a. A car...Ch. 3 - Prob. 10QCh. 3 - Draw the Lewis structure and name the molecular...Ch. 3 - Draw the Lewis structure and name the molecular...Ch. 3 - a. Draw the Lewis structure for methanol (wood...Ch. 3 - a. Draw the Lewis structure for ethene (ethylene),...Ch. 3 - Prob. 15QCh. 3 - Prob. 16QCh. 3 - Prob. 17QCh. 3 - Prob. 18QCh. 3 - Termites possess enzymes that allow them to break...Ch. 3 - Consider Figure 4.4. a. Which sector has the...Ch. 3 - Silver has an atomic number of 47. a. Give the...Ch. 3 - Silver only has two naturally occurring isotopes:...Ch. 3 - a. Calculate the average mass in grams of an...Ch. 3 - Prob. 24QCh. 3 - Prob. 25QCh. 3 - The total mass of carbon in living systems is...Ch. 3 - Prob. 27QCh. 3 - Prob. 28QCh. 3 - Prob. 29QCh. 3 - Prob. 30QCh. 3 - The Arctic has been called our canary in the coal...Ch. 3 - Do you think the comment made in the cartoon is...Ch. 3 - Prob. 33QCh. 3 - Prob. 34QCh. 3 - Over the last 20 years, about 120 billion tons of...Ch. 3 - Prob. 36QCh. 3 - Prob. 37QCh. 3 - Prob. 38QCh. 3 - Ethanol, C2H5OH, can be produced from sugars and...Ch. 3 - Prob. 40QCh. 3 - Prob. 41QCh. 3 - Prob. 42QCh. 3 - Prob. 43QCh. 3 - Prob. 44QCh. 3 - Prob. 45QCh. 3 - Prob. 46QCh. 3 - Prob. 47QCh. 3 - Prob. 48QCh. 3 - Prob. 49QCh. 3 - Prob. 50QCh. 3 - Former vice president Al Gore writes in his 2006...Ch. 3 - Prob. 52QCh. 3 - Prob. 53QCh. 3 - Data taken over time reveal an increase in CO2 in...Ch. 3 - In the energy industry, 1 standard cubic foot...Ch. 3 - Prob. 56QCh. 3 - A solar oven is a low-tech, low-cost device for...Ch. 3 - In 2005, the European Union adopted a...Ch. 3 - The world community responded differently to the...
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