Tutorial 4 - CBC 111 Tutorials Week 11 Draw the Lewis...

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CBC 111 Tutorials – Week 11 1. Draw the Lewis structures of HSO 3 F and SO 3 F - . What is the molecular geometry and hybridization for the sulphur atom in each species? (H is bonded to the O atom in the acid.) 2. The sulfamate ion, H 2 NSO 3 - , can be thought of as having been formed from the amide ion, NH 2 - , and sulfur trioxide, SO 3 . a. Sketch a structure for the sulfamate ion and estimate the bond angles. b. What changes in hybridization do you expect for N and S in the course of the reaction NH 2 - + SO 3 Æ H 2 N - SO 3 - 3. Draw all the possible Lewis electron dot structures for the azide ion: N 3 - . What will be the molecular structure of the acid, HN 3 obtained by adding a H + to a terminal N. 4. Draw the Lewis structures and assign formal charges for all the possible resonance forms of the cation N 5 + . (You may ignore cyclcic/ring structures) 5. NH 3 and NF 3 have dipole moments of 1.47D and 0.20 D respectively. Explain. Electronegativites of H, N and F are 2.1, 3.0 and 4.0 respectively.
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This note was uploaded on 09/25/2008 for the course - - taught by Professor - during the Spring '08 term at Nanyang Technological University.

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Tutorial 4 - CBC 111 Tutorials Week 11 Draw the Lewis...

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