Assignment_1_2011 - 5) Show the direction of the dipole...

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CHM 1321 Assignment 1 1) Draw Lewis structures, showing all unshared electrons, for the following molecules: (a) CH 3 NH 2 (b) CH 2 CH 2 (c) C 2 H 2 (d) CH 3 CH 2 CHO (e) CH 3 CH 2 OH 2 + (f) (CH 3 ) 3 N (g) CH 3 CN (h) CH 3 CH(OH)CH 3 (i) CH 3 NCO (j) CH 2 CHCH(OH)CH 2 CO 2 H (k) NCCH 2 COCH 2 CHO (l) CH 3 CH(CH 3 )CH 2 C(CH 2 CH 3 ) 2 CHO (m) (CH 3 ) 3 C + (n) CH 3 CH 2 O - (o) CH 3 CHCHCH 2 CHCHCOOH (p) HC(O)N(CH 3 ) 2 2) There is a small portion of the periodic table that you must know to do organic chemistry. Construct this from memory including the group numbers, numbers of valence electrons, and electronegativities. 3) Draw structures for (a) Two compounds with the formula C 4 H 10 (b) Three compounds with the formula C 3 H 8 O 2 (c) Two compounds with the formula C 2 H 7 N (d) Five compounds of formula C 3 H 6 O 4) Name all the compounds in Question 3.
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Unformatted text preview: 5) Show the direction of the dipole moments of the following bonds. Use two methods. (a) C-Cl (b) C-H (c) C-N (d) C-O (e) C-B (f) N-H (g) O-H (h) C-Br 6) Draw the shape of s and p orbitals including phasing. Show the resulting shapes following sp, sp 2 and sp 3 hybridization. 7) For each molecule below: i. Draw complete molecular orbital structures using the LCAO method. ii. Label the atomic orbitals used to make the bonds (p, sp, sp 2 , sp 3 ) iii. Label the bonds ( , ). iv. Indicate the geometry of each atom (linear, trigonal planar, tetrahedral). (a) CH 3 CH 2 NH 2 (b) CH 3 CO 2 H (c) CH 3 CHCHCH 2 CH 3 (d) CH 3 NO 2 (e) CH 3 CN (f) CH 3 OCH 3...
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