Ch 10 Example Problems

Ch 10 Example - 4 determine the number of single bonds double bonds and lone pairs on the central atom a 4 0 1 b 4 0 0 c 1 3 0 d 3 1 0 e 4 0 2 6

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HODSON CHE 1301 Petrucci Ch10 Example Problems The following problems are taken from old exams . ..... 1. In which of he following molecules would you expect the nitrogen to nitrogen bond to be the shortest (where appropriate, formulae are written as condensed structural formulae) ? a) NH 3 b) H 2 NNH 2 c)   O 2 NNO 2 d) N 2 e) N 2 O 2. Which of the following species exhibits resonance ? a) N 2 b) OF 2 c)   PCl 5 d) SO 3 e) ClO 3 3. Which of the following is a bent (non-linear) molecule ? a) BeF 2 b) CO 2 c)   CS 2 d) OF 2 e) none-all are linear 4. What is the formal charge on B in BF 4 ? a) 1 b) –1 c)   –2 d) 2 e) 0 5. After drawing the Lewis dot structure for XeCl
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Unformatted text preview: 4 , determine the number of single bonds, double bonds, and lone pairs on the central atom ? a) 4, 0, 1 b) 4, 0, 0 c) 1, 3, 0 d) 3, 1, 0 e) 4, 0, 2 6. What is the molecular geometry of BrF 5 ? a) linear b) trigonal bipyramid c) square planar d) octahedral e) square pyramid 7. Given the bond enthalpies H–O (464), Cl–Cl (243), Cl–O (205), and H–Cl (431) in kJ/ mol, compute Δ H ° in kJ/mol for H 2 O (g) + Cl 2(g) → HOCl (g) + HCl (g) a) +393 b)–1100 c) –393 d) +1100 e) +71...
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This note was uploaded on 12/19/2009 for the course CHE 1301 taught by Professor Klausmeyer during the Spring '08 term at Baylor.

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Ch 10 Example - 4 determine the number of single bonds double bonds and lone pairs on the central atom a 4 0 1 b 4 0 0 c 1 3 0 d 3 1 0 e 4 0 2 6

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