Chapter 14 Evens Answers

Chapter 14 Evens Answers - 14.12(a) Br O single bond 1.5 O...

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14.12 (a) Here we should consider the Lewis structures: Br O _ Br O _ O Br O _ O single bond resonance structures give a bond order of 1.5 We expect the Br - O bond in Br - O - to be longer because it is a single bond, whereas the Br - O bond order in BrO 2 - is 1.5 and the bond should be shorter. One could also predict the Br - O bond distance in BrO 2 - to be shorter because the Br atom is in a higher oxidation state. (b) Si-H in SiH 4 . The radius of silicon is larger than the radius of carbon. 14.20 (a) HNO 3 (b) H 3 PO 4 (c) H 2 SeO 4 14.22 (a) 2 2 NaH(s) H O(l) NaOH(aq) H (g) + + (b) 800 C, Ni 4 2 2 CH (g) H O(g) CO(g) 3 H (g) + → + o (c) ,pressure, Ni 2 2 2 3 3 H C CH (g) H (g) CH CH (g) = + → The oxidation number of 2 2 C in H C CH is 2, and 3 = - - in H 3 C - CH 3 . C has been reduced. (d) 2 2 Mg(s) 2 HCl(aq) MgCl (aq) H (g) + + 14.30 (a) Li Li e + - + 3.05 V ° = + E 2 Cu 2 e Cu + - + 0.34 V ° = + E 2 2 Li Cu Cu 2 Li + + + + 3.39 V ° = + E The maximum potential possible is + 3.39 V. (b) The difficulty is isolating the two half cells but still maintaining
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This note was uploaded on 05/04/2009 for the course CHEM 653196 taught by Professor Johnson during the Spring '09 term at UCSD.

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Chapter 14 Evens Answers - 14.12(a) Br O single bond 1.5 O...

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