VSEPR (Molecular Shapes)

Which is the correct geometry of the following compounds: PBr3, BH4-, NMe4+

What is the molecular shape of CO32- ?

Consider the VSEPR for the “best” Lewis diagrams for the following species and use them to answer the next three questions

1. PH3

2. AlH4-

Fill in the table for the following compounds:

SF6

NH3

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.

What is the molecular shape predicted by VSEPR for ICl3?

Molecular Polarity and VSEPR

Consider the best Lewis diagrams for the following chemical species to answer the next two questions

1. ClF3

The Lewis structure of formyl bromide is given below. Which of the vectors corresponds to direction of its NET molecular dipole?

Solve the following two part question, regarding the line drawing shown below.

Part 1:

Part 2:

Consider the VSEPR for the “best” Lewis diagrams for the following species and use them to answer the next three questions

a) PH3

b) AℓH4-

Use the molecular structure of CH3NCH2 to asnwer the following question

This structure does not show lone pairs, however all bonds and non-zero formal charges are shown.

Which of the choices below correctly identifies the electron-pair geometries of the atoms indicated?

Consider the VSEPR for the “best” Lewis diagrams for the following species and use them to answer the following questions: CF4, SeF4, KrF4

Which of the following has a tetrahedral electron-pair (VSEPR) geometry?

Consider the VSEPR for the “best” Lewis diagrams for the following species and use them to answer the following questions: CF4, SeF4, KrF4

Which of the following has a square planar molecular shape?

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

Consider the VSEPR for the “best” Lewis diagrams for the following species and use them to

answer the following questions: O3, NCl3, N3-

Which of the following has trigonal planar VSEPR geometry?

Consider the VSEPR for the “best” Lewis diagrams for the following species and use them to

answer the following question: O3, NCl3, N3–

Which of the following has a tetrahedral molecular shape?

Consider the VSEPR for the “best” Lewis diagrams for the following species and use them to

answer the following question: O3, NCl3, N3–

Which of the following will have bond angles of 180 °?

MDMA (3,4-methylenedioxy-methamphetamine) or “Molly” is a psychoactive drug commonly used for recreational purposes, which has been investigated as a treatment for PTSD. It functions by triggering serotonin release and inhibiting serotonin reuptake in the

human brain, causing euphoric and empathogenic effects on the user. The structure of MDMA is shown below.

Name the molecular geometry of the following compounds

a) $\rm {NO_3}^-$

b) $\rm CH_4$

If a molecule has the formula $\text{XBr}_ 4^-$ with a see-saw molecular geometry, what is the best choice for the identity of $X$?

What is the molecular geometry of $\text{SF}_4$ ?

How many carbon atoms with a bent shape are there in the

molecule of 3-methyl-3-penten-1-ol given its line drawing ?

Provide a prospective drawing for the following compounds and give the parent shape (or electron geometry) and molecular shape

a) IF7

b) SF4

Consider the following reaction of silicon tetrafluoride:

Give the AXnEm notation and name of the molecular geometry around $\rm Si$ before and after this reaction. Are either of these species polar?

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?

1) Draw Lewis structures for the following molecules

2) List the molecular shape and electron geometry for each

a) NH3.

Which of the following compounds would have a seesaw molecular geometry (shape).

The angles labelled a, b and c are approximately _ _ and _ respectively.

Which of the following molecules has a square based pyramidal molecular shape?

What is the approximate F-S-F angle in SF6?

Which element M, in the compound MF5 will lead to a trigonal bipyramidal molecular shape?

SF2Cl4 exists as two isomers. One is polar, one is non-polar. Draw a 3-D representation of both isomers below.

A compound has two lone pairs and is bound to four other atoms. What is the molecular shape of this compound?

Which of the following compounds has a 120o bond angle?

For the compounds below list the molecular shape and whether it is polar or non-polar.

Which of the following molecules has a trigonal bipyramidal electron geometry?

Name the molecular geometry of the following compounds and determine whether each is polar.

a) $NO_3^-$

b) $CH_4$

What is the molecular geometry of NH3 ?

Is H2O a polar molecule? Use a VSEPR structure to determine your answer and choose the option with the correct molecular shape.

The electronic geometry of $\rm {PO_4}^{3-}$ according to VSEPR theory is:

A molecule with the general shape of $\rm AX_3E_2$ has what molecular geometry?

1) Provide a prospective drawing for the following compounds and give the parent shape and molecular shape

a) IF7

b) SF4

Draw the VSEPR diagram for each molecule. Identify the hybridization of the central atom.

$PCl_5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ CO_2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ BF_3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ SF_4$

For the molecule, [Tel4]2-, answer the following questions

Estimate which bond angle is smallest based on the VSEPR model.

Which of the following molecules has a trigonal bipyramidal electron geometry?

Give the VSEPR geometry of PF5.

What is the VSEPR structure for NH3.

What VSEPR shape does ICl3 take?

What VSEPR shape does XeF2 take?

Determine the VSEPR structure for SF4.

Determine the VSEPR shape for NH3.

What is the VSEPR shape for ClF3? Is this a polar molecule?

Which of the following compounds would have a seesaw molecular geometry (shape).

A. IBr4–

B. TeH4

MDMA (3,4-methylenedioxy-methamphetamine) or “Molly” is a psychoactive drug commonly used for recreational purposes, which has been investigated as a treatment for PTSD. It functions by triggering serotonin release and inhibiting serotonin reuptake in the

human brain, causing euphoric and empathogenic effects on the user. The structure of MDMA is shown below.

What is the molecular shape of the nitrogen atom in MDMA?

The Lewis structure of a simple organic fragment is shown below:

What is the NCO bond angle?

The Lewis structure of a simple organic fragment is shown below:

What is the HCH angle of the CH3 group?

Which of these AB4 molecular geometries is observed for XeF4?

Next question refers to the figures below. All of these structures have five (5) electron domains.

Which of these molecular shapes best represents the shape of the molecule SeF4?

Which of the following compounds of xenon has exactly one nonbonding pair of electrons on the xenon

atom?

Is SO2 polar or non-polar?

What is the molecular shape?

What is the electron geometry?

MDMA (3,4-methylenedioxy-methamphetamine) or “Molly” is a psychoactive drug commonly used for recreational purposes, which has been investigated as a treatment for PTSD. It functions by triggering serotonin release and inhibiting serotonin reuptake in the

human brain, causing euphoric and empathogenic effects on the user. The structure of MDMA is shown below.

How many atoms have trigonal planar electron geometry in MDMA?

Predict the shape of BeCl2

Next question concerns the molecule acrylonitrile, C3H3N, shown below.

The H-C-H an C-C-C bond angles in a molecule of acrylonitrile are closest to what pair of values

respectively?

Name the molecular geometry of the following compounds

a) $\rm {NO_3}^-$

b) $\rm CH_4$

Question refers to the figure below. All of these structures have five (5) electron domains.

Which element M will lead to an MF3 molecule with shape D above?

Using VSEPR theory predict the molecular shape of the cation in tetramethylammonium iodide, [(CH3)4N]+ I-

.

For each of the following molecules, determine the VSEPR shape and the molecular shape.

a) BrCl5

b) H2S

Answer the following questions on the organic structure below.

Determine the VSEPR shape of the following molecules.

a) SiH4

b) AsBr5

Match each of the following molecules to the correct VSEPR shape (remember, N (# e- pairs) = #lone pairs + #bonds).

Match each of the following molecules to the correct molecular shape (remember, N (# e- pairs) = #lone pairs + #bonds). BUT, for molecular shape, lone pairs are NOT included.

For each of the following molecules, determine the VSEPR shape and the molecular shape.

a) COS (C is the central atom)

b) POCl3

Determine the VSEPR and molecular shapes of the: Ni, O and C atoms for complete Lewis structure of the molecule below.

Determine the VSEPR shape for the following molecules.

a) AlH3

b) SeCl6

Determine the VSEPR shape and molecular shape of XeCl2F2.

The structures of TeF5- and SF6 have identical VSEPR shapes, yet TeF5- has bond angles of 79o and SF6 has bond angles of 90o. Explain the difference.

Answer the following questions for the molecule: XeO2F2.

Draw the shapes of the following molecules/ions using VSEPR theory and comment on their polarities:

1. SO2

2. H2O

Consider XeO3 and answer the following:

a. What is the approximate O-Xe-O bond angle?

b. What is the hybridization of Xe?

Consider the following reaction of silicon tetrafluoride:

Give the AXnEm notation and name of the molecular geometry around $\rm Si$ before and after this reaction. Are either of these species polar?

Consider the polyatomic ion SO32- and answer questions.

The molecular geometry is ______.

Consider the polyatomic ion SO32- and answer questions.

The O-S-O bond angles in this ion are (approximately)?

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

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:

MDMA (3,4-methylenedioxy-methamphetamine) or “Molly” is a psychoactive drug commonly used for recreational purposes, which has been investigated as a treatment for PTSD. It functions by triggering serotonin release and inhibiting serotonin reuptake in the

human brain, causing euphoric and empathogenic effects on the user. The structure of MDMA is shown below.

Which of the following statements are true?

Which of the following compounds would have a seesaw molecular geometry (shape).

A. IBr4–

B. TeH4

The Lewis structure of a simple organic fragment is shown below:

What is the HCH angle of the CH3 group?

The Lewis structure of a simple organic fragment is shown below:

What is the NCO bond angle?

Using VSEPR theory predict the molecular shape of the cation in tetramethylammonium iodide, [(CH3)4N]+ I-

.

Determine the VSEPR and molecular shapes of the: Ni, O and C atoms for complete Lewis structure of the molecule below.

Determine the VSEPR shape of the: Ni, O and C atoms for complete Lewis structure of the molecule below.

Draw the Lewis Structure, Perspective Diagram, and identify the molecular shape of the following molecules.

a) SiH4

b) AsBr5

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

For the natural product Ottelione A, denote the hybridization, approximate bond angle and VSEPR notation for the highlighted atoms.

MDMA (3,4-methylenedioxy-methamphetamine) or “Molly” is a psychoactive drug commonly used for recreational purposes, which has been investigated as a treatment for PTSD. It functions by triggering serotonin release and inhibiting serotonin reuptake in the human brain, causing euphoric and empathogenic effects on the user. The structure of MDMA is shown below.