Chem1000A
Spring 2003
Assignment 5 - Solutions
Two or three questions will be marked from each assignment.
DUE ON Feb. 13, 2003 (Friday) 1:00 PM
To be dropped off at my office (C886)
1. (a) Draw Lewis structures of the following molecules. (b) Specify the electron pair geometry and
molecular geometry of the following molecules according the VSEPR model. (c) Indicate the bond
dipole moments and the overall molecular dipole moments (if the molecule is polar).
(i) ClO4(ii) XeO3
(iii) BrF4(iv) XeOF4
(v) IF2(vi) IF2+
(vii) OH2
(viii) OF2
(ix) POF4(x) POCl4(xi) SF4
(xii) XeO3F2
(xiii) XeO2F2
see scanned pages
2. Balance the complete combustion reactions of the following organic compounds with excess
oxygen.
(a) 1-butanol, C4H9OH
C4H9OH + 6O2 → 4CO2 + 5H2O
(b) ethylene, H2C=CH2
H2C=CH2 + 3O2 → 2CO2 + 2H2O
(c) toluene (H3C)C6H5
(H3C)C6H5 + 9O2 → 7CO2 + 4H2O
(d) ethylene glycol C2H4(OH)2
2C2H4(OH)2 + 5O2 → 4CO2 + 6H2O