Week_1_PurpleBook2007

Week_1_PurpleBook2007 - 1 Lewis Structures Week 1 1. Draw...

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Lewis Structures 1. Draw complete Lewis structures, showing all atoms and lone pairs, for the following molecules. CH 4 3 Br 3 2 OH H 2 CO HCN C 2 H 2 3 O 3 NH 2 4 + H 3 O + C 2 H 4 Week 1 1
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CO H H H C C C C H H H H H H H H H H C H O H H C H N H N C C H H H H H H N C C H H H H H H H H CC C H H H PC CH 3 H 3 C 3 3 3 Formal Charge 1. Given the following Lewis structures, identify the formal charge on all the non-hydrogen atoms. You may assume that all atoms and lone pairs are shown completely and correctly. Week 1 2
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H 3 C C CH 3 O H 3 C C O O H 3 C C NH 2 O C CH 3 H 3 C O 3 H 3 C C C O 3 3 + 1. For each of the following, complete the Lewis structure by drawing in all the implied lone pairs. Then draw the single best alternate resonance structure. Then indicate which of the two structures is more stable, or if they are equally stable. Resonance HC N H C Week 1 3
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CN H Orbitals and Hybridization 1. Each of the following species contains a carbon-nitrogen bond. Give the hybridization of both the carbon and nitrogen atoms, describe how each of the orbitals is used (for σ -bonding, π -bonding, lone pairs, etc.), and how these orbitals form the carbon-nitrogen bond. N C H H H H H N C H H H H H H H C H N H + Week 1 4
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