B. Drawing Lewis Structures and Pred sadeus Sur Molecular Formula Lewis Structure Number of Bonds about Central Atom Sketch of Ball- and-Stick Model Shape Description BeCl, - Be- : lUnear 2 (example) BF, CH, SiCl, H,CF,
Q: SeO, 12
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Q: Molecular Formula Number of Bonds about Central Atom Sketch of Ball- and-Stick Model Shape…
A: x= (V+M-C+A)/2 V = valence electrons of central atom M = number of monovalent atoms C = cationic…
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A: The given Lewis structure is,
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A: Solution The number of lone pairs on Si in are zero. So the shape with four bond pairs and no lone…
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A: (a).
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- A benzene molecule can be modeled as six carbon atoms arrangedin a regular hexagon in a plane. At each carbon atom, one of threeradicals NH2, COOH, or OH can be attached. How many suchcompounds are possible? (Make no distinction between single anddouble bonds between the atoms.)Given the following molecules and/or ions, characterize them according to the formatshown in the table below. The central atom of the molecule/ion is shown in boldface.The central atom or molecules marked with an asterisk (*) do not obey the octet rule. SF6* XeF2* SnCl4 A=Bonding electronsB= Sigma-bondsC =Nonbonding electron pairsD= Hybrid orbitals havingnonbonding electron pairsE =Hybrid orbitals usedF= 3-D structure (NAME)G =Polar (P) or nonpolar (NP) MOLECULE OR ION LEWIS STRUCTURE A B C D E F GThe diagram that follows shows the highest-energy occupiedMOs of a neutral molecule CX, where element X is in thesame row of the periodic table as C. (a) Based on the numberof electrons, can you determine the identity of X? (b) Wouldthe molecule be diamagnetic or paramagnetic? (c) Considerthe p2p MOs of the molecule. Would you expect them to havea greater atomic orbital contribution from C, have a greateratomic orbital contribution from X, or be an equal mixtureof atomic orbitals from the two atoms?
- The Lewis structure for allene isMake a sketch of the structure of this molecule that is analogousto Figure 9.25. In addition, answer the followingthree questions: (a) Is the molecule planar? (b) Does it havea nonzero dipole moment? (c) Would the bonding in allenebe described as delocalized? Explain.Write simple valence bond wave functions for formationof bonds between C and H atoms. What C-H compounddoes the VB model predict? What geometry does it predictfor the molecules?Draw Lewis structures for BrO4-, SiH4, PCl4, CH2Cl2 and BF4-.(a) Which species is/are likely to be paramagnetic?(b) What reaction(s) would occur for the paramagnetic species? (c) By VSEPR, suggest the molecular geometry of each species.
- The VSEPR model was developed before any xenon com-pounds had been prepared. Thus, these compounds provided anexcellent test of the model’s predictive power. What would youhave predicted for the shapes of XeF₂, XeF₄, and XeF₆?The figure that follows contains ball-and-stick drawings ofthree possible shapes of an AF4 molecule. (a) For each shape,give the electron-domain geometry on which the moleculargeometry is based. (b) For each shape, how many nonbondingelectron domains are there on atom A? (c) Which of thefollowing elements will lead to an AF4 molecule with theshape in (iii): Be, C, S, Se, Si, Xe? (d) Name an element A thatis expected to lead to the AF4 structure shown in (i).The figure that follows shows ball-and-stick drawings of threepossible shapes of an AF3 molecule. (a) For each shape, givethe electron-domain geometry on which the molecular geometryis based. (b) For each shape, how many nonbondingelectron domains are there on atom A? (c) Which of the followingelements will lead to an AF3 molecule with the shapein (ii): Li, B, N, Al, P, Cl? (d) Name an element A that is expectedto lead to the AF3 structure shown in (iii).
- Consider the Lewis structure shown below. (a) Does the Lewis structure depict a neutral molecule or anion? If it is an ion, what is the charge on the ion? (b) What hybridizationis exhibited by each of the carbon atoms? (c) Arethere multiple equivalent resonance structures for the species?(d) How many electrons are in the π system of the species?(a) Predict the geometry of the SbCl52- ion, using theVSEPR method.(b) The ion SbCl63- is prepared from SbCl52-by treatment with Cl2. Determine the steric number of thecentral antimony atom in this ion, and discuss theextension of the VSEPR theory that would be neededfor the prediction of its molecular geometry.How many total bonding electrons does it have? _______ How many valence bonding electrons does it have? ________ How many total antibonding electrons does it have? _________ How many valence antibonding electrons does it have? _______ Is it paramagnetic or diamagnetic? __________ What is the bond order for it? Show your calculation!________=_______ Does molecular orbital theorv indicatethat NO+ can exist? _________