Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Textbook Question
Chapter 5, Problem 30E
Draw a Lewis structure and use VSEPR theory to determine the geometry of each molecule. If the molecule has more than one central atom, indicate the geometry about each of these and draw the three-dimensional structure.
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Determine whether each molecule is polar or nonpolar: CF4, CH4, NH3. EN values: C: 2.6; H: 2.2; F: 4.0; N: 3.0.Start with Lewis structure then draw the shape of the molecule →determine the polarity of the bond(s) →provide the orientation of the dipoles to determine polarity of the molecule the only one need is EN
1. For each molecule and ion below, indicate the total number of valence electrons. Based on that number of electrons, draw a valid Lewis structure.2. Use VSEPR theory to determine the electron arrangement and the geometry of the molecule around the central atom(s). A table of geometries is attached.3. Build the molecule using the molecular models provided in the lab. Sketch your model well enough to show the geometry. Include bond angles.4. Using your understanding of electronegativity and its trends in the Periodic Table, determine if polar bonds exist in the molecule.5. Using bond polarity and molecular shape, determine if the molecule has an overall dipole. If all the bonds are nonpolar, the molecule is nonpolar. If polar bonds are present, then consider the shape to determine if the molecule has an overall dipole.
Chapter 5 Solutions
Chemistry In Focus
Ch. 5 - Drawing Lewis Structures for Ionic Compounds Draw...Ch. 5 - Using Lewis Structures to Determine the Correct...Ch. 5 - Prob. 5.3YTCh. 5 - Prob. 5.4YTCh. 5 - Drawing Lewis Structures for Covalent Compounds...Ch. 5 - Prob. 5.6YTCh. 5 - Prob. 5.7YTCh. 5 - Prob. 5.8YTCh. 5 - Prob. 5.9YTCh. 5 - Determining if a Molecule Is Polar Is SCl2 a polar...
Ch. 5 - Based on the Lewis structures for hydrogen and...Ch. 5 - Prob. 2SCCh. 5 - Prob. 3SCCh. 5 - Prob. 4SCCh. 5 - Which one of the following bonds is polar? a. a...Ch. 5 - Prob. 6SCCh. 5 - Why is salt, NaCl, relatively harmless even though...Ch. 5 - If sodium is dropped into water, a loud fizzing...Ch. 5 - Explain ionic bonding according to Lewis theory.Ch. 5 - Prob. 4ECh. 5 - Prob. 5ECh. 5 - Prob. 6ECh. 5 - Draw electron dot structures for the following...Ch. 5 - Explain VSEPR theory. According to this theory,...Ch. 5 - Prob. 9ECh. 5 - Prob. 10ECh. 5 - In what ways is water unique? What about the water...Ch. 5 - What is the difference between a polar and a...Ch. 5 - Why do polar molecules have a greater tendency to...Ch. 5 - Prob. 14ECh. 5 - Lewis Structures for Atoms Draw Lewis structures...Ch. 5 - Draw Lewis structures for each of the following...Ch. 5 - Ionic Lewis Structures Draw a Lewis structure for...Ch. 5 - Draw a Lewis structure for each of the following...Ch. 5 - Draw a Lewis structure for each of the following...Ch. 5 - Draw a Lewis structure for each of the following...Ch. 5 - Covalent Lewis Structures Draw a Lewis structure...Ch. 5 - Draw a Lewis structure for each molecular...Ch. 5 - General Lewis Structures Determine whether each...Ch. 5 - Determine whether each compound is ionic or...Ch. 5 - What is wrong with each Lewis structure? Fix the...Ch. 5 - What is wrong with each Lewis structure? Fix the...Ch. 5 - Predicting the Shapes of Molecules Use VSEPR...Ch. 5 - Use VSEPR theory to determine the geometry of the...Ch. 5 - Draw a Lewis structure and use VSEPR theory to...Ch. 5 - Draw a Lewis structure and use VSEPR theory to...Ch. 5 - CF2Cl2 is a chlorofluorocarbon implicated in ozone...Ch. 5 - Chlorofluorocarbons have been banned because they...Ch. 5 - Determining Molecular Polarity Determine whether...Ch. 5 - Determine whether each molecule is polar:...Ch. 5 - Determine whether each molecule is polar:...Ch. 5 - Determine whether each molecule is polar:...Ch. 5 - Explain why water would be a gas at room...Ch. 5 - Prob. 38ECh. 5 - Prob. 39ECh. 5 - One of the observations that led G. N. Lewis to...Ch. 5 - G. N. Lewis developed a model for chemical bonding...Ch. 5 - The opening quote of this chapter states that Man...Ch. 5 - Draw a Lewis structure of the H2 molecule. If you...Ch. 5 - Prob. 44ECh. 5 - The Lewis structures for CH4,N2,andCO2, along with...Ch. 5 - CH3COCH3 (acetone) is a common laboratory solvent...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
Specify both the VSEPR electron group geometry about the central atom and the molecular geometry for each of the following molecules or polyatomic ions. a. CH4 b. PH4+ c. PH3 d. NO3
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Draw a Lewis structure for each of the following molecules or ions. Describe the electron-pair geometry and molecular geometry around the central atom. (a) ClF2 (b) ClF3 (c) ClF4 (d) CIF5
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Successive substitution of F atoms for H atoms in the molecule CH4 produces the molecules CH3F, CH2F2, CHF3, and CF4. a. Draw Lewis structures for each of the five molecules. b. Using VSEPR theory, predict the geometry of each of the five molecules. c. Specify the polarity (polar or nonpolar) for each of the five molecules.
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Indicate which molecule in each of the following pairs of molecules has the greatest molecular polarity. a. BrCl and BrI b. CO2 and SO2 c. SO3 and NH3 d. CH4 and CH3Cl (C is the central atom)
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Refer to your Lewis structure for GeS2
What are the bond angles found in germanium disulfide?
90 degrees
109.5 degrees
120 degrees
180 degrees
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Have each member of your group select one of the molecules and complete steps a–d. Have members present their results to the rest of the group, explaining the reasoning they used to determine their answers. CS2 NCl3 CF4 CH2F2
a. Draw the Lewis structure.b. Determine the molecular geometry and draw it accurately.c. Indicate the polarity of any polar bonds within the structure.d. Classify the molecule as polar or nonpolar.
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Draw a Lewis structure for each of the following molecules.
HI( hydrogen iodine)
C2H2
C2H4
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For the following molecules, sketch the three-dimensional shape, describe the molecular geometry of each central atom, and describe bond angles around each central atom.
H2S
O3
CHF3
HClO3 (the hydrogen is bonded to an oxygen)
CH3NH2
For each molecule in problem 1, determine if the molecule is polar or nonpolar. If polar, indicate the molecular polarity with the arrow that has the plus sign. If nonpolar, write this for the molecule (there is no symbol for nonpolar).
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Use the Molecular Polarity Simulation to complete the following.
Effect of Molecular Geometry on Polarity
For each molecule:
Sketch each molecule as shown in the simulation.
Include arrows to show the bond dipoles as well as a molecular dipole (if present).
Circle polar or nonpolar to indicate the polarity of the molecule.
Name the molecular geometry (from Part A)
H2O vs CO2
H2O
CO2
polar
nonpolar
polar
nonpolar
Molecular Geometry
Molecular Geometry
Question 1a: How does the molecular geometry (linear vs bent) affect the molecular polarity?
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Can you draw the Lewis structure and the molecular geometry of two molecules of your choice? Write the significance or how these molecules affect our daily life.
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Draw the Lewis structure for the below molecules and provide their molecular geometry and state if each molecule has polarity.
CO2
NH3
H2S
H2CO
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1. The electron pair in a H - Cl bond could be considered...
a. closer to H because Hydrogen has a larger radius and thus exerts greater control over the shared electron pair
b. closer to Cl because Chlorine has a higher electronegativity than Hydrogen
c. closer to H because Hydrogen has a lower electronegativity than Chlorine
d. an inadequate model since the bond is ionic
2. It is important to know the geometry of a molecule because the geometry _______.
a. will give the Lewis structure of the molecule
b. affects the physical and chemical properties of the substance
c. will determine whether the molecule is ionic or covalent
d. Both B, and C
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