PRIN.OF GENERAL,ORGANIC+BIOLOG.CHEM.
2nd Edition
ISBN: 9781266811852
Author: SMITH
Publisher: MCG
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Textbook Question
Chapter 7.4, Problem 7.11P
Why does a soft drink become “flat” faster when it is left open at room temperature compared to when it is left open in the refrigerator?
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In the video, we looked at the absorbance of a certain substance and how it varies
depending on what wavelength of light we are looking at. Below is a similar scan of a
different substance. What color BEST describes how this substance will appear?
Absorbance (AU)
Violet
Blue
Green
Orange
1.2
1.0-
0.8-
0.6-
0.4-
0.2
0.0
450
500
550
600
650
700
Wavelength (nm)
violet
indigo
blue
green
yellow orange
red
Red
O Cannot tell from this information
In the above graph, what causes -450 nm wavelength of light to have a higher
absorbance than light with a -550 nm wavelength? Check all that are true.
The distance the light travels is different
The different data points are for different substances
The concentration is different at different times in the experiment
Epsilon (molar absortivity) is different at different wavelengths
5. a. Data were collected for Trial 1 to determine the molar mass of a nonvolatile solid solute when dissolved in cyclo-
hexane. Complete the table for the analysis (See Report Sheet). Record calculated values with the correct number
of significant figures.
B. Freezing Point of Cyclohexane plus
Calculation Zone
Unknown Solute
2. Mass of cyclohexane (g)
10.14
Part C.4
3. Mass of added solute (g)
0.255
C. Calculations
1. k; for cyclohexane (°C⚫ kg/mol)
20.0
2. Freezing point change, AT, (°C)
3.04
Part C.6
3. Mass of cyclohexane in solution (kg)
4. Moles of solute, total (mol)
Show calculation.
5. Mass of solute in solution, total (g)
6. Molar mass of solute (g/mol)
Show calculation.
Chapter 7 Solutions
PRIN.OF GENERAL,ORGANIC+BIOLOG.CHEM.
Ch. 7.1 - Classify each substance as a heterogeneous...Ch. 7.1 - Classify each product as a solution, colloid, or...Ch. 7.2 - Consider the following diagrams for an aqueous...Ch. 7.2 - Prob. 7.4PCh. 7.2 - Prob. 7.5PCh. 7.2 - Prob. 7.6PCh. 7.2 - Prob. 7.7PCh. 7.2 - If a solution contains 125 mEq of Na+ per liter,...Ch. 7.3 - Prob. 7.9PCh. 7.3 - Prob. 7.10P
Ch. 7.4 - Why does a soft drink become flat faster when it...Ch. 7.4 - Predict the effect each change has on the...Ch. 7.5 - Prob. 7.13PCh. 7.5 - Prob. 7.14PCh. 7.5 - Prob. 7.15PCh. 7.5 - A drink sold in a health food store contains 0.50%...Ch. 7.5 - Prob. 7.17PCh. 7.5 - Prob. 7.18PCh. 7.5 - Prob. 7.19PCh. 7.6 - Prob. 7.20PCh. 7.6 - Prob. 7.21PCh. 7.6 - Prob. 7.22PCh. 7.6 - Prob. 7.23PCh. 7.6 - Prob. 7.24PCh. 7.7 - Prob. 7.25PCh. 7.7 - Prob. 7.26PCh. 7.7 - Prob. 7.27PCh. 7.8 - Which solution in each pair exerts the greater...Ch. 7.8 - Describe the process that occurs when a 1.0 M NaCl...Ch. 7.8 - Prob. 7.30PCh. 7 - Prob. 7.31UKCCh. 7 - Prob. 7.32UKCCh. 7 - Prob. 7.33UKCCh. 7 - Prob. 7.34UKCCh. 7 - Prob. 7.35UKCCh. 7 - Prob. 7.36UKCCh. 7 - Prob. 7.37UKCCh. 7 - Prob. 7.38UKCCh. 7 - Prob. 7.41UKCCh. 7 - Prob. 7.42UKCCh. 7 - Prob. 7.43APCh. 7 - Prob. 7.44APCh. 7 - Prob. 7.45APCh. 7 - Prob. 7.46APCh. 7 - Prob. 7.47APCh. 7 - Prob. 7.48APCh. 7 - Prob. 7.49APCh. 7 - Prob. 7.50APCh. 7 - Prob. 7.51APCh. 7 - Prob. 7.52APCh. 7 - Prob. 7.53APCh. 7 - Prob. 7.54APCh. 7 - Prob. 7.55APCh. 7 - Prob. 7.56APCh. 7 - Prob. 7.57APCh. 7 - Prob. 7.58APCh. 7 - Prob. 7.59APCh. 7 - Prob. 7.60APCh. 7 - Prob. 7.61APCh. 7 - Prob. 7.62APCh. 7 - Prob. 7.63APCh. 7 - Prob. 7.64APCh. 7 - Prob. 7.65APCh. 7 - Prob. 7.66APCh. 7 - Prob. 7.67APCh. 7 - Prob. 7.68APCh. 7 - Prob. 7.69APCh. 7 - Prob. 7.70APCh. 7 - Prob. 7.71APCh. 7 - Prob. 7.72APCh. 7 - Prob. 7.73APCh. 7 - Prob. 7.74APCh. 7 - Prob. 7.75APCh. 7 - Prob. 7.76APCh. 7 - Prob. 7.77APCh. 7 - Prob. 7.78APCh. 7 - Prob. 7.79APCh. 7 - Prob. 7.80APCh. 7 - Prob. 7.81APCh. 7 - Prob. 7.82APCh. 7 - Prob. 7.83APCh. 7 - Prob. 7.84APCh. 7 - Prob. 7.85APCh. 7 - Prob. 7.86APCh. 7 - Prob. 7.87APCh. 7 - Prob. 7.88APCh. 7 - Prob. 7.89APCh. 7 - Prob. 7.90APCh. 7 - If the concentration of glucose in the blood is 90...Ch. 7 - Prob. 7.92APCh. 7 - Prob. 7.93APCh. 7 - Prob. 7.94APCh. 7 - Prob. 7.95APCh. 7 - Prob. 7.96APCh. 7 - Prob. 7.97APCh. 7 - Prob. 7.98APCh. 7 - Prob. 7.99APCh. 7 - Prob. 7.100APCh. 7 - Prob. 7.101APCh. 7 - Prob. 7.102APCh. 7 - Prob. 7.103CPCh. 7 - Prob. 7.104CP
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