Workshop 1Key

Workshop 1Key - polar covalent 2 Draw the dipoles and...

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Workshop 1 Chem 51A Fall 2010 1. Acetone is a commonly used organic solvent with the structure shown below. Please answer each of the following questions. H 3 C O CH 3 a. Fill in any missing non-bonding electrons on the structure above and all other structures. b. Label the hybridization of the indicated atoms. H 3 C O CH 3 sp 2 sp 3 sp 2 c. Using atomic orbital diagrams, show the original and hybrid orbitals of the indicated atoms. Label both the starting and final orbitals (s, p, sp 3 , sp 2 , sp). H 3 C O CH 3 hybridize s, p, p 2s 2p 3 sp 2 hybrid orbitals 2p
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H 3 C O CH 3 hybridize s, p, p 2s 2p 3 sp 2 hybrid orbitals 2p H 3 C O CH 3 hybridize s, p, p, p 2s 2p 4 sp 3 hybrid orbitals d. Label all bonds as σ, π, σ+π, or σ+2π. O H H H H H H + e. Label all bonds as covalent, polar covalent, or ionic. Label all bond angles. O H H H H H H covalent covalent
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Unformatted text preview: polar covalent 2. Draw the dipoles and partial charges ( δ + or δ-) for the following molecules. H CH 3 H H Cl H H H CH 3 H H HO H 3 C CH 3 N CH 3 CH 3 H 3 C H H H H no dipole N trigonal pyramidal has a net dipole 3. Vitamin D 2 , or cholecalciferol, is an important D vitamin with the structure shown below. a. Which of the σ bonds indicated is strongest? Explain. HO A B C The σ bond found in bond A is the strongest σ bond. The hybrid orbitals that make up this bond are two sp 2 orbitals. They contain more total s character than the orbitals forming bond B (two sp 3 orbitals) or the orbitals that form bond C (one sp 3 and one sp 2 ). Bonds having more s character are shorter and stronger....
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Workshop 1Key - polar covalent 2 Draw the dipoles and...

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