SmartWork5 Chapter 6 Chemistry II HW Answers

SmartWork5 Chapter 6 Chemistry II HW Answers

Chemistry II homework solutions for SmartWork5 Chapter 6 provide detailed answers to key problems and concepts in intermolecular forces, hydration of ions, and molecular structures. This resource is ideal for students preparing for exams in chemistry, covering topics such as hydrogen bonding, dipole-dipole interactions, and solubility. The document includes rankings of boiling points and solubility for various compounds, along with explanations of phase diagrams and hydration processes. Perfect for high school and college chemistry students seeking comprehensive homework assistance.

Key Points

  • Explains intermolecular forces including hydrogen bonding and dipole-dipole interactions.
  • Ranks boiling points and solubility of various organic compounds for chemistry students.
  • Covers hydration of ions and their interactions in aqueous solutions.
  • Includes detailed answers to homework problems from SmartWork5 Chapter 6.
  • newtopiccyclegrowin
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SmartWork5 Chapter 6 Chemistry II HW
Study online at https://quizlet.com/_8odh80
1. SmartWork5 F*ck SmartWork5 and Chegg
2. Which intermolecular force(s) do
the following pairs of mole-
cules experience? (Consider ask-
ing yourself which molecule in
each pair is dominant?)
Acetone and Ethanol:
A. London Dispersion
B. Dipole-Dipole
C. Hydrogen Bonding
Pentane and Hexane:
A. London Dispersion
Pentanol and Water:
A. London Dispersion
B. Dipole-Dipole
C. Hydrogen Bonding
3. Sort the following molecular rep-
resentations based on the dom-
inant intermolecular forces pre-
sent in a pure sample of each sub-
stance.
Dispersion Forces: Ethane
Dipole-Dipole Forces:
Dimethyl Ethane
Hydrogen Bonding:
Ethanol
Acetic acid
4. Sort each of the molecular rep-
resentations again, but this time
identify which molecules will hy-
drogen-bond (HB) with water mol-
ecules and which will not.
Forms HBs with Water:
Ethanol
Acetic acid
Dimethyl ether
Will Not HB with Water:
Ethane
5.
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SmartWork5 Chapter 6 Chemistry II HW
Study online at https://quizlet.com/_8odh80
The physical and chemical prop-
erties of a molecule depend
on its structure. Here are two
ball-and-stick models for two com-
pounds that have the same mole-
cular formula but different struc-
tures and different chemical prop-
erties.
Part 1: Using the models, which of
the following is true?
-Ethanol is polar
-Dimethyl ether has dispersion INTERmolecular forces
-Dimethyl ether is polar
-Ethanol has covalent INTRAmolecular forces
-Ethanol has dispersion INTERmolecular forces
6. The physical and chemical prop-
erties of a molecule depend
on its structure. Here are two
ball-and-stick models for two com-
pounds that have the same mole-
cular formula but different struc-
tures and different chemical prop-
erties.
Part 2: Rank the following in order
of increasing strength.
Weakest
1. Dispersion forces
2. Dipole-dipole interactions
3. Hydrogen bonds
4. Covalent bonds
Strongest
7. The following questions focus on
ion-dipole interactions that pro-
mote hydration of anions.
Part 1: Rank the following ions in
order of increasing hydration in
water.
Smallest Hydration
1. I-
2. Br-
3. Cl-
4.F-
Large Hydration
8. The following questions focus on
ion-dipole interactions that pro-
Two Hs have INTRAmolecular force to O with 2 pairs of
lone electrons, and a Cl has an INTERmolecular force with
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SmartWork5 Chapter 6 Chemistry II HW
Study online at https://quizlet.com/_8odh80
mote hydration of anions.
Part 2: Use your mouse to
click-n-drag a square around the
image which correctly depicts the
hydration of the chloride ion.
an H. There's a negative sign on the Cl and it has 4 pairs
of lone electrons.
9. Rank these substances in order of
increasing solubility in water.
Most Soluble
1. CH3CH2OH
2. CH3CH2CH2OH
3. CH3(CH2)3OH
4. CH3(CH2)5OH
Least Soluble
10. Complete the Lewis structures of
SO2 and SO3. Be sure to draw
only the resonance form with the
lowest formal charges (zero) on
all atoms. Do not add the formal
charges to the structures. Then
predict the solubility of the struc-
tures.
SO2:
First O atom has two lone pairs of electrons, then a
double bond with S. The S has 1 lone pair of electrons,
then double bonded again with an O atom. The O atom
has two pairs of lone electrons.
SO3:
All O atoms have two pairs of lone electrons and all are
double bonded to S.
11. Which sulfur oxide would you pre-
dict to be more soluble in nonpolar
solvents?
SO3
12. Consider this model for one of the
noble gases to answer the follow-
ing questions.
Part 1: Identify the phase repre-
sented in the model.
Solid
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End of Document
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FAQs of SmartWork5 Chapter 6 Chemistry II HW Answers

What intermolecular forces are discussed in Chapter 6?
Chapter 6 discusses various intermolecular forces, including London dispersion forces, dipole-dipole interactions, and hydrogen bonding. The document provides examples of molecules that exhibit these forces, such as acetone, ethanol, and pentane. It explains how these forces influence the physical properties of substances, including boiling points and solubility in water. Understanding these concepts is crucial for students studying physical chemistry and preparing for exams.
How does the document rank the solubility of different alcohols?
The document ranks the solubility of various alcohols in water, highlighting that ethanol is the most soluble, followed by propanol and butanol. It explains that the solubility decreases as the carbon chain length increases due to the increasing hydrophobic character of the molecules. This ranking is essential for understanding the behavior of organic compounds in aqueous solutions, which is a key concept in chemistry courses.
What is the significance of the phase diagram included in the homework?
The phase diagram included in the homework illustrates the states of matter for carbon dioxide under varying temperature and pressure conditions. It shows the transitions between solid, liquid, and gas phases, providing a visual representation of phase changes. Understanding phase diagrams is important for students as they depict how substances behave under different environmental conditions, which is a fundamental concept in physical chemistry.

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