Lewis Structure, Hybridization & Molecular Geometry a) Draw the Lewis Structure of the molecules; Label the hybridization of each carbon atom; Predict the approximate molecular geometry around each carbon atom. CH3CHO CH3CN b) Draw the Lewis Structure of Nitromethane; Predict the approximate molecular geometry around the nitrogen atom. CH3NO2 c) Draw the Lewis Structure; Label the hybridization of the boron atom; Predict the approximate molecular geometry. BF3 BF4

Lewis Structure, Hybridization & Molecular Geometry a) Draw the Lewis Structure of the molecules; Label the hybridization of each carbon atom; Predict the approximate molecular geometry around each carbon atom. CH3CHO CH3CN b) Draw the Lewis Structure of Nitromethane; Predict the approximate molecular geometry around the nitrogen atom. CH3NO2 c) Draw the Lewis Structure; Label the hybridization of the boron atom; Predict the approximate molecular geometry. BF3 BF4

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter10: Molecular Structure And Bonding Theories

Section: Chapter Questions

Problem 10.40QE: Use the VSEPR model to predict the bond angles around each central atom in the following Lewis...

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In Chapter 6, we study a group of organic cations called carbocations. Following is the structure of one such carbocation, the tert-butyl cation. (a) How many electrons are in the valence shell of the carbon bearing the positive charge? (b) Using VSEPR, predict the bond angles about this carbon. (c) Given the bond angle you predicted in (b), what hybridization do you predict for this carbon?
1. a) Draw the dominant Lewis structure for the allene molecule (1,2-propyl diene, CH2CCH2 ) and use VSEPR theory to determine the molecule's geometry. In specifying the geometry give all bond angles and specify which nuclei lie in the same plane. b) Propose a hybridization and bonding scheme for the atoms in allene. That is, specify how each of the atoms is hybridized, which atomic orbitals overlap to form bonding molecular orbitals, and the nature (i.e., sigma", pi, etc.) of these molecular orbitals. c) Draw a plausible valence molecular orbital level diagram for allene (include only bonding MOs) based on the results from (b). d) Based on the work from (c) deduce the valence electronic configuration of the ground state of allene. e) Is the molecule planar or nonplanar? Explain your answer Answer subparts c, d, and e
1. a) Draw the dominant Lewis structure for the allene molecule (1,2-propyl diene, CH2CCH2 ) and use VSEPR theory to determine the molecule's geometry. In specifying the geometry give all bond angles and specify which nuclei lie in the same plane. b) Propose a hybridization and bonding scheme for the atoms in allene. That is, specify how each of the atoms is hybridized, which atomic orbitals overlap to form bonding molecular orbitals, and the nature (i.e., 0", 7f, etc.) of these molecular orbitals. c) Draw a plausible valence molecular orbital level diagram for allene (include only bonding MOs) based on the results from (b). d) Based on the work from (c) deduce the valence electronic configuration of the ground state of allene. e) Is the molecule planar or nonplanar? Explain your answer
4. Describe the hybridization of each carbon atom in the following structure.
Find the hybrid orbital type for each atom, the carbon-carbon-oxygen bond angle, the molecular geometry of oxygen, and the number of sigma and pi bonds in the molecule.
I need the Hybridization, Overlapping orbitals, and Molecular geometry.
Just need the last two, Bond angle and 3D structure and polarity
Lewis Structure Electronic Geometry and Angles and Hybridization Identify the Polarity of the Molecule P, exception to Ocet Rule (Maximum of 10 electrons around P) PCI5 Electronic groups: Draw structure with the dipoles and Electronegativity values Count the electrons P is the central atom Octet Electronic Geometry: Valence Molecular Geometry: Shared Hybridization: Is it Symmetrical or Unsymmetrical? Bonds Bond Angles: Is it Polar or Non-polar Molecule? Lewis Structure Electronic Geometry and Identify the Polarity of the Molecule S, exception to Ocet Rule (Maximum of 12 electrons around S) Angles and Hybridization Electronic groups: Draw structure with the dipoles and Electronegativity values Count the electrons S is the central atom Octet Electronic Geometry: Valence Molecular Geometry: Shared Hybridization: Is it Symmetrical or Unsymmetrical? Bonds Bond Angles: Is it Polar or Non-polar Molecule?
Draw the Lewis Structures for the following molecules and give the hybridization for each carbon atom. a) 2-methyl-1-butanol, CH3CH2CH2(CH3)CH2OH b) Ethyl propanoate, CH3CH2CO2CH2CH3 c) Methyl cyanide (aka acetonitrile), CH3CN d) Isopropyl phenyl ether, (CH3)2CHOC6H5 e) N,N-dimethylpentamide, CH3CH2CH2CH2CON(CH3)2
Describe the orbitals used by each carbon atom in bonding and indicate the approximate bond angles. Drag the appropriate items to their respective bins.
Lewis Structure As , obeys the Ocet Rule (Maximum of 8 electrons around As) Electronic Geometry and Angles and Hybridization ASH3 Identify the Polarity of the Molecule Count the electrons Electronic groups: Draw structure with the dipoles and As is the central atom Electronegativity values Octet Electronic Geometry: Valence Molecular Geometry: Shared Hybridization: Is it Symmetrical or Unsymmetrical? Bonds Bond Angles: Is it Polar or Non-polar Molecule? Lewis Structure S, obeys the Ocet Rule (Maximum of 4 electrons around S) Electronic Geometry and Angles and Hybridization H2S Identify the Polarity of the Molecule Count the electrons Electronic groups: Draw structure with the dipoles and S is the central atom Electronegativity values Octet Electronic Geometry: Valence Molecular Geometry: Shared Hybridization: Is it Symmetrical or Unsymmetrical? Bonds Bond Angles: Is it Polar or Non-polar Molecule?
Using Valence Bond Theory, NOT the VSEPR model, show what orbitals the central carbon atom is using in the compound HCN (Drawing a Lewis Structure is good, but not enough). What is the bond angle and molecular geometry in the HCN molecule? DRAW AND NAME THE ORBITALS FOR ALL 3 ATOMS BEFORE AND AFTER BONDS FORM. A FEW DRAWINGS SHOWING PARTS OF YOUR ANSWER WOULD BE A LOT BETTER THAN ONE DRAWING ATTEMPTING TO SHOW ALL OF IT !! a) b) c) a)