Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
8th Edition
ISBN: 9780134015187
Author: John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 1.112CP
At a certain point, the Celsius and Fahrenheit scales “cross” and the numerical value of the Celsius temperature is the same as the numerical value of the Fahrenheit temperature. At what temperature does this crossover occur?
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Notice that the difference between the freezing and boiling point of water is 180 degrees in the
TEMPERATURE (°C)
symbol (*), followed immediately by either C or F (no spaces).
On the Fahrenheit scale:
O°F
32°F freezing point of water (equivalent to 0°C)
212°F boiling point of water (equivalent to 100°C)
Fahrenheit scale (32°F....212°F) but is 100 degrees in the Celsius scale (0°C..T00 C).
As with using the metric system, it is important in the sciences to learn to use and report
temperature readings using the Celsius scale since it is more universally used than the Fanrenniore
scale. The formulas used to convert between these two temperature scales are listed below.
When converting from°F to°C
°C= ('F - 32) 1.8
°C=5/9('F - 32)
-OR-
When converting from°C to°F
°F = (°C x 1.8) + 32
°F = (°C x 9/5) + 32
-OR-
Use the above equations (either the decimal or fraction form) to complete the following
conversions. Space is provided should you wish to write out your work. Place your answer
(and…
Solution A is 20 degrees celsius, Solution B is 80 degrees celsius (both are the same kind of solution). The goal is to make a 50 degree celsius solution; How much of solution A do you need (starting with 100g of solution B)?
(cp=4.184 J/g C)
If experimental determinations of Kp at different temperatures for a given equilibrium in the temperature range 20-40 °C are fitted to
the function shown below:
In K, = a T2+c In() (a = 123.5 K?; = 23.6)
%3D
Answer the following questions:
Calculate Kw at 5°C, assuming that AH° is temperature independent.
Chapter 1 Solutions
Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
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