Chemistry I Chapter 10
Draw the Lewis structure for BrF5. What is the hybridization on the Br atom?
sp3d2
Draw the Lewis structure for SF6. What is the hybridization on the S atom?
sp3d2
How many of the following molecules are polar? XeCl2 COF2 PCl4F SF6
3
How many of the following molecules have sp hybridization on the central atom? C2Cl2 CO2 O3 H2O
2
Draw the Lewis structure for BrCl3. What is the hybridization on the Br atom?
sp3d
Consider the molecule below. Determine the molecular geometry at each of the 2 labeled carbons.
C1 = bent, C2 = trigonal planar
Consider the molecule below. Determine the hybridization at each of the 2 labeled carbons.
C1 = sp2, C2 = sp3
Choose the compound below that contains at least one polar covalent bond, but is nonpolar. SeBr4, HCN, ICl3, CF4
CF4
Place the following in order of decreasing X-A-X bond angle, where A represents the central atom and X represents the outer atoms in each molecule. CS2 CF4 SCl2
CS2 > CF4 > SCl2
Place the following in order of increasing X-Se-X bond angle, where X represents the outer atoms in each molecule. SeO2 SeCl6 SeF2
SeCl6 < SeF2 < SeO2
Determine the electron geometry (eg) and molecular geometry (mg) of the second carbon in CH3CN.
eg= linear, mg= linear
Determine the electron geometry, molecular geometry and polarity of N2O (N central).
eg= linear, mg=linear, polar
A molecule containing a central atom with sp3 hybridization has a(n) __________ electron geometry.
tetrahedral
A molecule containing a central atom with sp3d hybridization has a(n) __________ electron geometry.
trigonal bipyramidal
Identify the shape that goes with sp3d.
trigonal bipyrimidal
How many of the following molecules are polar? BrCl3 CS2 SiF4 SO3
1
Determine the electron geometry (eg) and molecular geometry (mg) of BrF3.
eg=trigonal bipyramidal, mg= T-shape
Determine the electron geometry (eg) and molecular geometry (mg) of ICl2⁻.
eg=trigonal bipyramidal, mg=linear
Determine the electron geometry (eg) and molecular geometry (mg) of XeF2.
eg=trigonal bipyramidal, mg=linear
Determine the electron geometry (eg) and molecular geometry (mg) of PF5.
eg=trigonal bipyramidal, mg=trigonal bipyramidal
Determine the electron geometry (eg), molecular geometry (mg), and polarity of SO2.
eg=trigonal planar, mg=bent, polar
Determine the electron geometry (eg) and molecular geometry (mg) of CO32⁻.
eg=trigonal planar, mg=trigonal planar
Determine the electron geometry (eg) and molecular geometry(mg) of BCl3.
eg=trigonal planar, mg=trigonal planar
How many of the following molecules have sp3 hybridization on the central atom? XeCl4 CH4 SF4 C2H2
1
Give the approximate bond angle for a molecule with a tetrahedral shape.
109.5 degrees
Give the approximate bond angle for a molecule with a trigonal planar shape.
120 degrees
Consider the molecule below. Determine the hybridization at each of the 3 labeled atoms.
1=sp2, 2=sp3, 3=sp3
Consider the molecule below. Determine the molecular geometry at each of the 3 labeled atoms.
1=trigonal planar, 2=tetrahedral, 3=trigonal pyramidal
How many of the following molecules are polar? XeO2 SiCl2Br2 C2Br2 SeCl6
2
How many of the following molecules have sp3d hybridization on the central atom? SiCl4 BrF5 AsF5 BrF3
2
How many of the following molecules are polar? PCl5 COS XeO3 SeBr2
3
Identify the number of electron groups around a molecule with a tetrahedral shape.
4
Choose the compound below that contains at least one polar covalent bond, but is nonpolar. SBr2, AsCl5, CBr2Cl2, GeH2Br2
AsCl5
Place the following in order of increasing X-A-X bond angle, where A represents the central atom and X represents the outer atoms in each molecule. HCN H2O H3O⁺
H2O < H3O⁺ < HCN
Place the following in order of increasing dipole moment. I. BCl3 II. BIF2 III. BClF2
I < III < II
Place the following in order of decreasing dipole moment. I. cis-CHCl=CHCl II. trans-CHCl=CHCI III. cis-CHF=CHF
III > I > II
Place the following in order of decreasing X-A-X bond angle, where A represents the central atom and X represents the outer atoms in each molecule. N2O NCl3 NO2⁻
N2O > NO2⁻ > NCl3
Place the following in order of increasing F-A-F bond angle, where A represents the central atom in each molecule. PF3 OF2 PF4⁺
OF2 < PF3 < PF4⁺
Determine the electron geometry, molecular geometry and polarity of SF6 .
eg= octahedral, mg= octahedral, non-polar
Determine the electron geometry, molecular geometry and polarity of TeCl6.
eg=octahedral, mg=octahedral, nonpolar
Determine the electron geometry (eg) and molecular geometry (mg) of XeF4.
eg=octahedral, mg=square planar
Determine the electron geometry (eg) and molecular geometry (mg) of CH3+1.
eg=tetrahedral, mg= trigonal pyramidal
Determine the electron geometry, molecular geometry and polarity of HBrO2 .
eg=tetrahedral, mg=bent, polar
Determine the electron geometry (eg) and molecular geometry (mg) of SiF4.
eg=tetrahedral, mg=tetrahedral
Determine the electron geometry (eg), molecular geometry(mg) and polarity of XeO3.
eg=tetrahedral, mg=trigonal pyramidal, polar
Determine the electron geometry (eg), molecular geometry (mg), and polarity of SO3.
eg=trigonal planar, mg=trigonal planar, nonpolar
A molecule containing a central atom with sp3d2 hybridization has a(n) __________ electron geometry.
octahedral
Draw the Lewis structure for SO3. What is the hybridization on the S atom?
sp2
Draw the Lewis structure for BrO4⁻. What is the hybridization on the Br atom?
sp3
Draw the Lewis structure for OF2. What is the hybridization on the O atom?
sp3