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Unformatted text preview: Answer Key Ch 1a, Problem Set Six Side 1 of 5 Due Friday, Nov. 5, 2004 Problem One – Lewis and VSEPR – 10 points each a. CO 2 , linear O C O O C O acceptable, not required b. PF 5 , trigonal bipyramidal F P F F F F c. CO, linear C O d. PH 3 , trigonal pyramidal P H H H e. HCP, linear H C P f. IF 3 ,t-shaped F I F F Problem Two – Lewis and VSEPR – 8 points each a. BrF 5 , square pyramidal Br F F F F F b. N 2 O, linear N N O N N O c. CH 3 CCH, tetrahedral, linear h C C h h C h d. BH 2 NH 2 , planar (or trigonal planar) B N H H H H B N H H H H note: lacks octet at Boron The geometry must be named. 4 points for the shape, 6 for the Lewis diagram/charges. Lone pairs must all be drawn, except for on F. -2 for extra incorrect resonance structures. -2 per missing resonance structure. No charge for extra correct structures (if there are any). Answer Key Ch 1a, Problem Set Six Side 2 of 5 Due Friday, Nov. 5, 2004 e. SF 2 O, trigonal pyramidal S O F F S O F F The geometry must be named. 4 points for the shape, 6 for the Lewis diagram/charges. Lone pairs must all The geometry must be named....
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