SCH4U - Unit 3: Energy Changes and Rates of Reaction


Objectives


Big Ideas:
  • Energy changes and rates of chemical reactions can be described quantitatively.
  • Efficiency of chemical reactions can be improved by applying optimal conditions.
  • Technologies that transform energy can have societal and environmental costs and benefits.

Overall Expectations

  • analyse technologies and chemical processes that are based on energy changes, and evaluate them in terms of their efficiency and their effects on the environment
  • investigate and analyse energy changes and rates of reaction in physical and chemical processes, and solve related problems;
  • demonstrate an understanding of energy changes and rates of reaction.




Hess's Law Lab - Enthalpy of Combustion of Magnesium - Class Results

Group
Reaction 1

Reaction 2


mass Mg
delta T
mass MgO
delta T
Peter&Boyang
0.56
32.0
1.00
8.0
Leanna&Rachel
0.52
26.5
1.01
8.0
Tessa&Janelle
0.72
31.1
1.00
7.2
Harmony,Brigitte,Montana
0.51
24.1
0.99
7.0
Luke + Zach
0.50
24.0
1.00
6.8
Brandon + Kelsey
0.50
23.0
1.00
7.0
Mark & Cam
0.57
25.5
1.00
8.0
Jeremy Evan Galen
0.60
26.6
1.02
7.4
JillRob
0.52
24.0
0.99
8.0
Matt&Harry
0.50
25.0
1.00
8.0
AVERAGE
0.55
26.2
1.00
7.5


Homework


Homework Number
Assignment
1
- read p.298-301, define bolds
- p.300 #1,4,5
- p.302 #8,9,12
2
- read p.302-305
- p.304 #14,15
- p.305 #1,3-6
3
- read text section 5.2
- p.308 #1,3
- p.310,11 #4,6,7,10
- p.312 #1,3,4
4
- read text section 5.3
- p.319 #1-3
- p.320 #1,2,3
5
- read text p.327-329
- p.326 #1,3
- p.329 #5
- p.330 #4abc
6
- p.332 #1
- p.335 #2,5 (note: use data tables p.799-800)
- p.338 #7,9
7
- p.346 practice 3
- p.355 Self Quiz
- p.356 #2-6,9,11,15,16
8
- read text p.358-366 define bold terms
9
- p.364 #3,4
- p.365 #8
- p.366 #2
- p.371 #1
10
- read text p.378-79
- p.377 #2-4,6
11
- read text sections 6.4 and 6.5
- p.391 #1-3
12
- p.400 #1,2
13
- Chapter 6 Review: p.407 Self Quiz
- p.408 #1,4,5,7,9,11-14
14
- Unit 2 Review: p.412 Self Quiz
- p.414 #1-3,5,6,10,15-17,26


Links and Books