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Lewis Structures: Molecular Polarity

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Wize University Chemistry Textbook > VSEPR Shapes and Polarity

Molecular Polarity

5 Activities

Wize University Chemistry Textbook > Lewis Structures & Resonance Structures

How to Draw Lewis Structures

5 Activities

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Mark Yourself Question
  1. Grab a piece of paper and try this problem yourself.
  2. When you're done, check the "I have answered this question" box below.
  3. View the solution and report whether you got it right or wrong.
Draw Lewis structures and give the other information requested for the following:
  1. NO3-. Polar or nonpolar molecule?
  2. BrF5. Polar or nonpolar molecule? Geometry?
  3. Cl2CH2. Polar or nonpolar molecule? Geometry?
More Molecular Polarity Questions:
VSEPR, bond polarity
Choose the correct option for the overall polarities of the following molecules:
1. SO2
2. H2O
Bond polarity, VSEPR
Choose the right statement about the polarities of SF4 and SF6
VSEPR
Consider CCl4 and choose the right statement(s)
Practice: VSEPR
Draw the shapes of the following molecules/ions using VSEPR theory and comment on their polarities:
1. SO2
2. H2O
VSEPR: Molecular Polarity
Answer the following questions for the molecule: XeO2F2.
Molecular Polarity: Net Dipole Moment
Which of the following molecules is polar?
Molecular Polarity
Which of the following molecules are non-polar?
Molecular Polarity
Do the following molecules have a net dipole moment (True = Yes; False = No)?
a) COS (C is the central atom)
b) POCl3
Molecular Polarity
Determine whether the following molecules are polar or not.
a) CS2
b) CH2-
Molecular Polarity
Which of the following molecules are non-polar?
Molecular Polarity
Determine whether the following molecules are polar or non-polar
a) NO3-
b) N2
VSEPR: Water
IsH2O\rm H_2O a polar molecule?
Use VSEPR theory to determine your answer.
VSEPR: Molecular Polarity
Is SO2 polar or non-polar?
What is the molecular shape?
What is the electron geometry?
Molecular Polarity
Next question refers to the figures below. All of these structures have five (5) electron domains.
Which of the shapes above can lead to a molecule with an overall dipole moment vector of 0 (i.e. a nonpolar
molecule)?
Molecular Polarity
Consider the molecules OCO, SCS, OCS, NNO, and NNS, which all have the same number of valence electrons.
(The atoms are connected in the order given.) How many of these molecules are non-polar?
Molecular Polarity
Which of the following dipole moment vectors best reflects the molecular polarity of SiF4?
Molecular Polarity
Which of the bonds has the largest bond dipole?
A. i only
B. ii only
Polarity: Are these molecules polar?
Are the following compounds polar or not?
Which of the following molecules would have a net molecular dipole moment (i.e. u not equal to 0)?
Molecular Polarity
Which molecule is the most polar?
Identify the following bonds as polar or non-polar.
Lewis Structures: Molecular Polarity
Which one of the following molecules would be nonpolar, i.e. exhibit a net molecular dipole moment of zero? (B)
VSEPR
Which of the following compounds has no net dipole?
Molecular Polarity: Dipole Moment
Is this molecule polar? In which direction is the dipole moment?
VSEPR: Molecular Polarity
What is the VSEPR shape for ClF3? Is this a polar molecule?
Molecular Polarity: Dipole Moment
Indicate the dipole moment in the following molecule.
Molecular Polarity: Dipole Moment
Indicate the dipole moment in the following molecule.
Molecular Polarity
Which of the following are polar? Indicate the direction of polarity.
VSEPR: Molecular Polarity
For the molecule, [Tel4]2-, answer the following questions
Molecular polarity
Which of the following compounds have the greatest overall dipole?
Molecular Polarity
Which of the following dipole moment vectors best reflects the molecular polarity of SiF4?
Lewis Structure: Molecular Polarity
Is the following molecules is Polar?
AsF5
VSEPR: Polarity
Is H2O a polar molecule? Use a VSEPR structure to determine your answer and choose the option with the correct molecular shape.
VSEPR: Molecular polarity
Name the molecular geometry of the following compounds and determine whether each is polar.
a) NO3−NO_3^-
b) CH4CH_4
Molecular polarity: Dipole
Which of the following compounds has no net dipole?
Molecular Polarity
Which of the following molecules has an overall dipole moment? (ie. which molecule is polar)
VSEPR: Polarity
For the compounds below list the molecular shape and whether it is polar or non-polar.
VSEPR and Lewis Structure
SF2Cl4 exists as two isomers. One is polar, one is non-polar. Draw a 3-D representation of both isomers below.
Molecular Polarity
Sulfur and fluorine form three different neutral binary compounds, SF2, SF4 and SF6. What is the hybridization of the compound which is non polar?
Molecular Polarity
For a series of compounds with the general formula EFx whre E is an element from groups 13-16, which of the following molecular shapes can lead to a molecule with no net-dipole?
Molecular Polarity
Which of the following fluorinated hydrocarbons is non-polar?
Molecular Polarity
Which of the following molecules has the least polar bonds?
Elements: Polarity
A compound with the formula XBr3XBr_3 is non-polar. What is the identity of XX?
Polarity
Draw the Lewis structure for SO2 to answer the following questions
Draw Lewis structures and give the other information requested for the following:
NO3-. Polar or nonpolar molecule?
BrF5. Polar or nonpolar molecule? Geometry?
Polarity: Practice
Are the following compounds polar or not? (answer yes or no)
a) PF5
b) SF4
Which molecule(s) is/are polar?
I CF4 and CCl4
II CCl4 and CO2
VSEPR
Consider the VSEPR for the “best” Lewis diagrams for the following species and use them to answer the following question
Which of the following molecules is/are polar?
i) CF4
Molecular polarity
Is the following molecule Polar?
BrCl3
Molecular Polarity: Permanent dipole
The Lewis structure of formyl bromide is given below. Which of the vectors corresponds to direction of its NET molecular dipole?
Molecular Polarity and VSEPR
Molecular Polarity and VSEPR
Consider the best Lewis diagrams for the following chemical species to answer the next two questions
1. ClF3
Lewis Structures: Molecular Polarity
Is the following molecules is Polar?
CS2
Which of the following compounds have the greatest dipole?
MeOH, CH3Cl, CH4, CCl4
More How to Draw Lewis Structures Questions:
Practice: Formal Charge
Practice: Formal Charges
In the molecule POCl3, what is the formal charge on the P atom in the best Lewis structure?
Acids and Bases: Acids and Salts
Draw the correct lewis structure of HClO3 and draw all resonance structures.
Lewis Structures
Calculate the formal charge on each atom in the molecule. Determine the most stable resonance structure.
Lewis Structures
Calculate the formal charge on each atom in the molecule. Determine the most stable resonance structure.
Lewis Structures: Resonance
Starting from the Lewis structure below, draw all valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Inspect the following incomplete resonance structures, and identify the INCORRECT statement about the
nitrous oxide molecule.
Hybridization, bond angle
1. What are the hybridization of each of the N atom in N3― and what is the NNN bond angle?
2. What are the hybridization of each of the atoms in HOCN? What are the HOC and OCN bond angles?
Choose the correct option:
Lewis Dot Structure, Resonance
Choose the most stable resonance form of carbon monoxide.
Resonance Structure, Oxidation State
Choose the correct statement:
Practice: Formal Charge
Practice: Formal Charges
In the molecule POCl3, what is the formal charge on the P atom in the best Lewis structure?
Lewis Structures
Complete the “best” Lewis diagrams for the following species and use them to answer the next three questions
SeCl2
PO2+
Covalent Bonding and Lewis Structures
Draw Lewis structures for the following molecules
a) NH3
b) CO2
Lewis Structure: Geometry Practice
Three compounds are given below. Write the dot structure and draw the molecular geometry for each of these molecules. Also include a descriptive name to describe the molecular shape: bent, T-shaped, see-saw, trigonal planar, trigonal pyramid, trigonal bipyramid, square planar, square pyramid, tetrahedral, or octahedral.
Lewis Structures: Resonance
Show all of the most stable resonance structures for CO32-.
Lewis Structures
Draw the Lewis Structure for SF2O2.
Lewis Structures
Draw the Lewis structure for CH2Br2
Lewis dot structure
Which of the following statements is (are) correct for the most important Lewis structure of BCl3?
Lewis dot structure
Draw the best Lewis dot structure of CN–.
Hybridization
Consider the following Lewis Dot Structure of CO:
What is the best option for describing the bond between C and O?
Lewis Dot Structure
Draw Lewis dot structures and more stable resonance structures (wherever applicable) of the following:
1. NO2
2. CH3OH
Benzene Derivatives
Complete the best Lewis structure of p-aminosalicylic acid (C7H7NO3) below to answer the following questions.
a) How many valence electrons are in the complete Lewis structure?
b) What is the formal charge on the nitrogen atom?
Benzene Derivatives
For the skeletal structure below, complete the Lewis structure and draw all three resonance structures for phenolate, C6H5O-. Show all lone pairs and additional bonds.
Lewis structure: Formal charge
Complete the best Lewis structure of the organic compound shown below (CH3CH2NO2). Determine the formal charge on the nitrogen.
Acids and Bases: Acids and Salts
Draw the correct lewis structure of chloric acid and draw all resonance structures.
Lewis Structure: Electron Movement in Resonance Structures
Complete the resonance structures by drawing the curly arrows required to convert between one resonance structure to another. Circle the resonance structure that is lower in energy.
ClO2-:
Lewis Structure: Resonance Structures
How many Resonance structures are there for the sulfite ion?
Organic Compounds
Complete the Lewis structure of p-chlorobenzoate (shown below) to answer the following questions.
Organic Compounds
Complete the correct Lewis structure of NH3CH3CH3CO2 (see below) to answer the following questions.
Resonance Structures
Draw all the resonance structures of CO2Cl- to answer the following questions.
Lewis Structures
Draw the correct Lewis structure of CO to answer the following questions.
Lewis Structures
Draw the correct Lewis structure of XeF5 to answer the following questions.
Organic Compounds
Complete the Lewis structure of p-chlorobenzoate (shown below) to answer the following questions.
Organic Compounds
Draw all the resonance structures of aniline (NH2C6H5). The incomplete Lewis structure of aniline is shown below.
Organic Compounds
Complete the correct Lewis structure of NH3CH3CH3CO2 (see below) to answer the following questions.
Organic Compounds
Draw the correct Lewis structure of HCCH.
Acids and Salts
Draw the correct Lewis structure of potassium sulfite (Na2SO3) and phosphoric acid (H3PO4).
Resonance Structures
Draw all the resonance structures of CO2Cl- to answer the following questions.
Resonance Structures
Draw all resonance structures for the carbonate ion: CO32-.
Lewis Structures
Draw the correct Lewis structure of CO to answer the following questions.
Lewis Structures
Draw the correct Lewis structure of XeF4 to answer the following questions.
Lewis Structures
Draw the correct Lewis structure of XeO4 to answer the following questions.
Lewis Structures
Draw the correct Lewis structure of BeF2.
Lewis Structures
Draw the Lewis structure of SO2Cl2 to answer the following questions.
Lewis Structures
Complete the “best” Lewis diagrams for the following species and use them to answer the next three questions
a) SeCl2
b) PO2+
Lewis Structures
Which is the correct Lewis Structure forAlCl3\rm AlCl_3?
VSEPR: Molecular Polarity
Is SO2 polar or non-polar?
What is the molecular shape?
What is the electron geometry?
Lewis Structures: VSEPR
Which of the following compounds of xenon has exactly one nonbonding pair of electrons on the xenon
atom?
Lewis Structures
Which one of the following ions has nonbonding valence electrons at the central atom?
Lewis Structures: Resonance
Inspect the following incomplete resonance structures, and identify the INCORRECT statement about the
nitrous oxide molecule.
Lewis Structures
Next question concerns the molecule acrylonitrile, C3H3N, shown below.
How many nonbonding valence electrons are there in a molecule of acrylonitrile?
Lewis Structures
Complete the skeleton given below to give the “best” Lewis diagram for a molecule of H2CCHCH2C(O)OH, then identify which of the statements below is false?
A. The C3C4 bond is stronger than the C2C3 bond.
B. There are 8 electrons not involved in bonding.
Lewis Structures: Formal Charge
In the molecule POCl3, what is the formal charge on the P atom in the best Lewis structure?
Lewis Structures: Formal Charge
5) Which of the following is the best Lewis structure for CO? (Enter a b c or d as your answer)
Lewis Structure: Phosphorus Pentafluoride
Please draw a reasonable Lewis structure for PF5
Lewis Structure: Nitric Oxide
Please draw the BEST Lewis structure for NO.
Lewis Structures
Draw Lewis structures, including resonance structures where applicable, for the following compound: PF5
Lewis Structure: Sulphate
Draw a reasonable Lewis structure for SO42-.
How many non-bonding electron pairs are on the central atom in PF4+PF_4^+ ?
Lewis Structure: Alkene
Which of the following molecules contains a double bond? (May be more than one)
a) HCCBr
b) H2NNH2
Lewis Structures
Calculate the formal charge on each atom in the molecule. Determine the most stable resonance structure.
Lewis Structures: Formal Charge
In the molecule POCl3 the central atom is P, what is the formal charge on the P atom in the best dot
structure (Lewis structure)?
(Note: Phosphorous is a third row element.)
Lewis Structures
Draw the Lewis structure for HCN. Calculate the formal charge of each atom.
Lewis Structures: Formal charge
Which of the following structures has a Cl with +1 formal charge?
Lewis Structure
Draw the Lewis structure for BFClH.
How to Draw a Lewis Structure Question
1) Draw the Lewis structure of H3PO4.
1) Complete the Lewis structure for the skeletal structure shown below
Lewis Structures: Formal charges
Complete the following skeletal structure. Please show all lone pairs and formal charges.
How many lone pairs are there in the best Lewis structure
Lewis Structure: Formal charge
Complete the following skeletal structure. Please show all lone pairs and formal charges.
Lewis Structures: Formal Charge
In the molecule POCl3, what is the formal charge on the P atom in the best Lewis structure?
VSEPR and Lewis Structure
1) Draw Lewis structures for the following molecules
2) List the molecular shape and electron geometry for each
a) NH3
Which of the following gives a pair of valid Lewis structures that are resonance structures of each other?
A. i only
B. ii only
Lewis Structures
Which of the following are correct, “best”, Lewis diagrams for
the condensed formulae given below them?
A. i only
Lewis Structures: VSEPR
If a molecule has the formula XBr4−\text{XBr}_ 4^- with a see-saw molecular geometry, what is the best choice for the identity of XX?
Lewis Structures
The Lewis diagrams for several molecules are shown below. Which of the molecules would be nonpolar?
Molecular Polarity and VSEPR
Consider the best Lewis diagrams for the following chemical species to answer the next two questions
CℓF3
O3
Lewis Structures
Complete the “best” Lewis diagrams for the following species and use them to answer the next three questions
a) SeCℓ2
b) PO2+
Lewis Structures
Draw Lewis structures for the following molecules.
a) AlCl3 b) CHCl3 c) PO43- d) PO33-
Practice: Skeletal Structure 2
Complete the following skeletal structure. Please show all lone pairs and formal charges.
Practice: Lewis Structure of Sulphate
Draw a reasonable Lewis structure for SO42-.
Draw Lewis structures, including resonance structures where applicable, for the following compound: NO3-
Lewis Structures: Resonance
Draw all reasonable resonance structures for the following compounds.
a) PS2Cl2-
b) SO42-
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures
Complete the following skeletal structure. Please show all lone pairs and formal charges.
Draw Lewis structures, including resonance structures where applicable, for the following compound: XeF6
Lewis Structure: Resonance
Diazomethane is a poisonous, explosive yellow gas at room temperature!
Starting its Lewis structure which is given below, show two other valid resonance structures. Be sure to show all bonds, lone pairs, and formal charges.
Which of these elements is the central atom in CHBrClI?
Draw Lewis structures, including resonance structures where applicable, for the following compound: XeF6
Which is the correct geometry of the following compounds: PBr3, BH4-, NMe4+