Bundle: Chemistry: Principles and Reactions, 8th, Loose-Leaf + OWLv2, 1 term (6 months) Printed Access Card
8th Edition
ISBN: 9781305717497
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Question
Chapter 10, Problem 21QAP
Interpretation Introduction
(a)
Interpretation:
The compound that is soluble in benzene among CCl4 or NaCl should be identified.
Concept introduction:
Solubility depends on the solvent and solute having same intermolecular bonds. Hence, the polar compounds are soluble in a polar solvent and nonpolar compounds are soluble in non-polar solvents.
Interpretation Introduction
(b)
Interpretation:
The compound that is soluble in benzene among hexane (C6 H14 ) or glycerol (CH2 OHCHOHCH2 OH) should be identified.
Concept introduction:
Solubility depends on the solvent and solute having same intermolecular bonds. Hence, the polar compounds are soluble in a polar solvent and nonpolar compounds are soluble in non-polar solvents.
Interpretation Introduction
(c)
Interpretation:
The compound that is soluble in benzene among acetic acid (CH3 COOH) or heptanoic acid (C6 H13 COOH) should be identified.
Concept introduction:
Solubility depends on the solvent and solute having same intermolecular bonds. Hence, the polar compounds are soluble in a polar solvent and nonpolar compounds are soluble in non-polar solvents.
Interpretation Introduction
(d)
Interpretation:
The compound that is soluble in benzene among HCl or propylchloride (CH3 CH2 CH2 Cl) should be identified.
Concept introduction:
Solubility depends on the solvent and solute having same intermolecular bonds. Hence, the polar compounds are soluble in a polar solvent and nonpolar compounds are soluble in non-polar solvents.
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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
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Absorbance (AU)
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1.2
1.0-
0.8-
0.6-
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0.2
0.0
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The distance the light travels is different
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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
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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.
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