Chemistry & Chemical Reactivity
10th Edition
ISBN: 9781337399074
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Question
Chapter 11, Problem 48SCQ
Interpretation Introduction
Interpretation: The reason for why 1-propanol has higher boiling point than methyl ethyl ether even though both compounds with same empirical formula has to be determined.
Concept Introduction:
Intermolecular force: Intermolecular force is the set of repulsive and attractive forces between molecules that result from the polarity between neighboring molecules. There are four types of intermolecular forces:
- Hydrogen bonding is a type of dipole-dipole interaction of molecules when the hydrogen is bonded to strong electronegative atom in the molecules.
- Dipole – Dipole interaction: This force takes place between polar compounds.
- Dispersion force is a weak force and this force is present in all compounds force.
- Ionic forces: ions are attracted each other electrostatically.
Boiling point: It is the temperature at which liquid converts to vapor. At boiling point the vapor pressure of liquid and the pressure of the surroundings are equal.
Boiling point is depending upon inter molecular forces.
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You have samples of four compounds: dimethyl ether,methane, difluoromethane, and ethanol. You measurethe boiling points of the compounds as -128 °C, -52 °C,-25 °C, and 78 °C, but then lose the labels for each sample.Make the following predictions: (a) Which compoundboils at -128 °C? (b) Which boils at -52 °C? (c) Whichboils at -25 °C? (d) Which boils at 78 °C?
Substance
T1 (°C)
|T2 (°C)
AT (°C)
ethanol
23.8 °C
13.0 °C
10.8°C
methanol
23.4 °C
9.6 °C
13.8°C
n-pentane
Predicted
1-butanol
Predicted
Explain your predictions for n-pentane and 1-butanol.
rationalize the observation that ch3ch2ch2oh 1-propanol has a boiling point of 97.2 ° c
Chapter 11 Solutions
Chemistry & Chemical Reactivity
Ch. 11.2 - Which should have the more negative hydration...Ch. 11.3 - Using structural formulas, describe the hydrogen...Ch. 11.4 - Prob. 11.3CYUCh. 11.5 - Prob. 11.4CYUCh. 11.6 - The molar enthalpy of vaporization of methanol,...Ch. 11.6 - Prob. 11.6CYUCh. 11.6 - Prob. 1.1ACPCh. 11.6 - Prob. 1.2ACPCh. 11.6 - Prob. 2.1ACPCh. 11.6 - Prob. 2.2ACP
Ch. 11 - Prob. 1PSCh. 11 - Intermolecular forces: What type of forces must be...Ch. 11 - Prob. 3PSCh. 11 - Prob. 4PSCh. 11 - Considering intermolecular forces in the pure...Ch. 11 - Considering intermolecular forces in the pure...Ch. 11 - Prob. 7PSCh. 11 - Which of the following compounds would be expected...Ch. 11 - Prob. 9PSCh. 11 - When salts of Mg2+, Na+, and Cs+ are placed in...Ch. 11 - Prob. 11PSCh. 11 - The enthalpy of vaporization of liquid mercury is...Ch. 11 - Answer the following questions using Figure 11.12:...Ch. 11 - Answer the following questions using Figure 11.12:...Ch. 11 - Prob. 15PSCh. 11 - Refer to Figure 11.12 to answer these questions:...Ch. 11 - Which member of each of the following pairs of...Ch. 11 - Place the following four compounds in order of...Ch. 11 - Prob. 19PSCh. 11 - You are comparing three different substances, A,...Ch. 11 - Equilibrium vapor pressures of benzene, C6H6, at...Ch. 11 - Prob. 22PSCh. 11 - Can carbon monoxide (Tc = 132.9 K; Pc = 34.5 atm...Ch. 11 - Methane (CH4) cannot be liquefied at room...Ch. 11 - What is surface tension? Give an example...Ch. 11 - What factors affect the viscosity of a substance?...Ch. 11 - If a piece of filter paper (an absorbent paper...Ch. 11 - When water is placed in a buret it forms a concave...Ch. 11 - Prob. 29GQCh. 11 - What types of intermolecular forces are important...Ch. 11 - Which of the following salts, Li2SO4 or Cs2SO4, is...Ch. 11 - Prob. 32GQCh. 11 - Prob. 33GQCh. 11 - Prob. 34GQCh. 11 - Rank the following compounds in order of...Ch. 11 - Prob. 36GQCh. 11 - Prob. 37GQCh. 11 - The following data are the equilibrium vapor...Ch. 11 - Prob. 39ILCh. 11 - A hand boiler can be purchased in toy stores or at...Ch. 11 - Prob. 41ILCh. 11 - Prob. 42ILCh. 11 - Acetone, CH3COCH3, is a common laboratory solvent....Ch. 11 - Cooking oil floats on top of water. From this...Ch. 11 - Liquid ethylene glycol, HOCH2CH2OH, is one of the...Ch. 11 - Liquid methanol, CH3OH, is placed in a glass tube....Ch. 11 - Account for these facts: (a) Although ethanol...Ch. 11 - Prob. 48SCQCh. 11 - Prob. 49SCQCh. 11 - Prob. 50SCQCh. 11 - Prob. 51SCQCh. 11 - Prob. 52SCQCh. 11 - A fluorocarbon, CF4, has a critical temperature of...Ch. 11 - Prob. 55SCQCh. 11 - List four properties of liquids that are directly...Ch. 11 - List the following ions in order of hydration...Ch. 11 - Prob. 59SCQCh. 11 - An 8.82-g sample of Br2 is placed in an evacuated...Ch. 11 - Polarizability is defined as the extent to which...Ch. 11 - Prob. 62SCQCh. 11 - A pressure cooker (a kitchen appliance) is a pot...Ch. 11 - Vapor pressures of NH3() at several temperatures...Ch. 11 - Prob. 65SCQCh. 11 - Prob. 66SCQCh. 11 - Prob. 67SCQ
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