Updated Oct.14/04	

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NUMERICAL ANSWERS TO ASSIGNED TUTORIAL PROBLEM SETS FOR CHEM205
FROM KOTZ & TREICHEL'S CHEMISTRY & CHEMICAL REACTIVITY			
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NOTE:  all answers from Chapter 1 have been verified. 
NOTE:  "^" means "raised to the power of..." to indicate scientific notation...


Ch.	Q#	Answer		Units		SFs	Comments
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1	6a						chemical
1	6b						physical
1	6c						chemical
1	6d						physical
1	13						use periodic table
1	15						use periodic table
1	17a						cmpd, element
1	17b						element, cmpd
1	17c						element, cmpd
1	19a						chem: reactivity towards acid
1	19a						phys:  colour, state, density
1	19b						chem: reactivity to give white cmpd
1	19b						phys:  colours
1	23	0.865		g/cm3		3	
1	25	5.00		g/mL		3	fool's gold
1	27	5.8x10^3	K		2	
1	29a	-196		C		3	
1	29b	336		K		3	
1	29c	1177		C		4	add/subt. only operations...
1	35	1.5		dm3		2	
1	39a	135, 2, 138, 0.3 C		shown	
1	39b	0, +3					
1	39c						A = more accurate, B = more precise
1	41a					3	
1	41b					2	
1	41c					4	
1	41d					3	
1	43	0.0286				3	
1	45a	1.78x10-22	cm3		3	
1	45b	3.86x10-22	g		3	
1	45c	9.65x10-23	g/unit		3	
1	47	9.0x10^1	m		2	
1	51	24.6		K		3	
1	51	27.1		K		3	
1	53a	1.54x10-10	m		3	
1	53b	1.54		Angstroms		3	
1	55	7.14		g/cm3		3	zinc
1	57	18.0		mL		3	will rise to 68.0 mL final volume
1	61	0.995		g 		3	of Pt in 1.53g cisplatin
1	63	5.0x10^1	mg		2	
1	67						text
1	73						if gas d<1.12g/L, balloon floats 
1	75	8.0x10^4	kg NaF/year		2