SCH 3U
Unit 3: Quantities in Chemical Reactions [McGraw – Hill Ryerson Textbook]
Course Expectation
Textbook
Suggested Text Questions
Reference
The Mole
D3.2 describe the relationships
Class
Moles  no. of particles
a) introduction to the mole: the
between Avogadro’s number, the handouts/notes Page 230 #11 – 20; Page 232 #7, 8, 11,
chemical "dozen"
mole concept, and the molar
Pg. 222 – 255
14
b) Avagadro's number and the mole
mass of any given substance
Particles  no. moles
c) calculations between mass, no. of
D2.3 solve problems related to
Page 231 #21 – 30
moles and no. of particles
quantities in chemical reactions
Calculating molar mass
d) calculating molar
by performing calculations
Pg. 235 #21 - 40
mass
involving quantities in moles,
Moles ↔ mass no. of ↔ particles
e) definitions: atomic molar mass,
number of particles, and atomic
Page 242 #61, 62; Page 243 #2 – 14
molecular molar mass, formula
mass [AI]
Definitions
unit, formula unit molar mass,
Page 243 #1
molar mass
Review of this section
Page 251 #1 – 40; page 254 #1 – 25.
Quiz
Review of this section
Pages 251 – 255
Percent Composition
D3.1 explain the law of definite
Class
Law of Definite Proportions
a) Law of Definite Proportions (or the proportions
handouts/notes Check out the definition pg. 258; page
Law of Constant Composition)
D2.4 determine the empirical
Pg. 258 – 267
262 #1 - 6
b) Two methods of calculating
formulae and molecular formulae
Calculating mass percent of an element
percent composition of a
of various chemical compounds,
in a compound Page 260 #1 – 10
compound (or the mass percent of
given molar masses and
Calculating percentage composition by
a given element in a compound)
percentage composition or mass
mass of each element in a compound
data [AI]
Page 264 #11 – 20; page 266 #21 - 30
Lab: Practice Calculating Number of
D2.2 conduct an inquiry to
Moles and Percent Composition
calculate the percentage
composition of a compound [PR,
AI]
Empirical and Molecular Formulas
D2.4 determine the empirical
Class
Definitions
a) definitions
formulae and molecular formulae handouts/notes See page 268.
of various chemical compounds,
Pg. 268 – 279
Page 270 #7 – 12; page 277 #13
b) calculating an empirical formula
given molar masses and
Empirical Formula
percentage composition or mass
Page 273 #31 – 40
c) calculating a molecular formula
data [AI]
Molecular Formula
D3.3 explain the relationship
Page 275 #41 – 47
d) determining the formula of a
between the empirical
Hydrates
hydrate
formula and the molecular
Page 277 #17; page 278 #51 - 60
formula of a chemical compound
Quiz
Review of this section
Pages 289 - 293
Stoichiometry
D2.1 use appropriate
Class
Define Stoichiometry
a) define stoichiometry
terminology related to quantities
handouts/notes Page 286; page 299 #2; page 305 #3
in chemical reactions, including,
Pg. 296 – 321
Mole Ratios
b) mole ratios
but not limited to: stoichiometry,
Page 298 #1 – 5; page 299 #2 – 6; page
percentage yield, limiting
300 #11 – 18
c) calculating unknown masses of
reagent, mole, and atomic mass
Mass to Mass Problems
reactants and products given some [C]
Page 304 #21 – 30
known masses
D2.6 solve problems related to
Defining limiting and excess
quantities in chemical
reactants/reagents
d) limiting reagent problems
reactions by performing
Page 306.
calculations involving
Limiting Reagent Problems
e) percent yield
percentage yield and limiting
Page 309 #31 – 39; page 311 #40 – 50
reagents [AI]
Percent Yield, theoretical yield, actual
yield
Page 316 #13 – 18.
Problems page 319 #50 – 60
Quiz (if time)
Review of this section
Page 331 - 335
Lab: Mass Relationships in a
D2.7 conduct an inquiry to
Chemical Reaction
determine the actual
yield, theoretical yield, and
percentage yield of the products
of a chemical reaction assess the
effectiveness of the procedure,
and suggest sources of
experimental error [PR,
AI]Concepts
Unit Test
Topic
1
1a
2
3
4
4a
5
5a
6
7
8
Unit Assignment
TBA
D1. analyse processes in the
home, the workplace, and the
environmental sector that use
chemical quantities and
calculations, and assess the
importance of quantitative
accuracy in industrial chemical
processes