Updated Mar.02/05	

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NUMERICAL ANSWERS TO ASSIGNED TUTORIAL PROBLEM SETS FOR CHEM206
FROM KOTZ & TREICHEL'S CHEMISTRY & CHEMICAL REACTIVITY			
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NOTE: these answers have been verified.  #33 is now fixed.  
NOTE: "^" means "raised to power of..."


Ch.	Q#	Ans.		Units		SFs	Comments
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6	3						text
6	8						text
6	13	399		Cal		3	
6	15	136		J/(mol K)	3	
6	17	674		J		3	
6	21	37.4		C		3	
6	25	0.27		J/(g C)		2	
6	27	3.30x10^2	kJ		3	
6	33	-3.0		kJ		2	
6	35	-82.9		kJ		3	
6	39	-68		kJ		2	
6	43	-96		kJ/mol		2	
6	47	-2800		kJ/mol		2	
6	51a	-43.6		kJ		3	
6	51b						diagram					
6	53	-3.20x10^2	kJ/mol		3	
6	59a	5.0x10^-1	kJ		2	
6	59b	18		kJ		2	
6	59c	-6.47		kJ		3	
6	59d	-4.13		kJ		3	
6	65	103.6		kJ		4	
6	69	8		kJ		1	water
6	69	10		kJ		1	ethanol
6	73	75.4		g		3	melted
6	79	-27		kJ/mol		2	
6	81	-140		kJ/mol		2	
6	83a						text--Hess's law
6	83b	116.8		kJ		4	
6	83c						diagram					
6	83d	Likely reactant-favoured -->  delta-H > 0…but entropy?					
6	87	Using H2O(l) -- could use H2O(g) data instead --> different answers		
6	87	-50.325		kJ/g		5	propane
6	87	-49.482		kJ/g		5	butane
6	87	-47.810		kJ/g		5	gasoline
6	87	-29.684		kJ/g		5	ethanol

6	97a	-1.220x10^3	kJ		4	add/sub. only
6	97b						diagram					
6	101	1.6x10^11	kJ		2	this quantity of E is RELEASED
6	101	38000		tonnes		2	c.f. dynamite