Transcript SCH3U Solutions and Solubility - OISE-IS-Chemistry-2011-2012

SCH3U Solutions and Solubility
Nicole Ross
Nicole Ross (#2)
Courtney Turner
Henry Xu
Minds On Activity
Agenda
• Unit Plan
• Big Ideas
• Overall and Guiding questions
• Blog
• Activity
• Misconceptions
Unit Plan
Lesson 1: Intro to
Solutions
- pre-assessment
questions
- classifying solutions
- testing solubility
- properties of
solutions
Lesson 2: Factors
that Affect Solubility
- water
Lesson 3: LAB for
Factors
- lab design to test
factors
- carry out lab
- discuss results in
groups
Lesson 4:
Concentration
- molarity
Lesson 5:
Concentration cont.
- group work activity
- dilutions
Lesson 6: Preparing
Solutions
- flask types and
accuracy
- mass accuracy
- concentration
determination
Lesson 7: Reactions
in Aqueous
Solutions
- quiz (20 min)
- demo
Lesson 8: Ionic
Equations and
Reactions
-
Lesson 9:
Stoichiometry
- intro to concept
- practice problems
- group work
Lesson 10:
Stoichiometry
- applied to solution
chemistry
- C1V1 = C2V2
Lesson 11: Water
- water quality: factors,
determination
- water pollution
Lesson 12: Water
- water purification
- waste-water
treatment
Lesson 13: FIELD
TRIP to Water
Treatment Facility
Lesson 14: Filtering
- quiz (20 min)
- filter activity/lab:
design filter, test it
Lesson 15:
Acids/Bases
- pH
- demo
Lesson 16:
Acids/Bases
- reactions of
- strong acids/bases
- weak acids/ bases
Lesson 17:
Neutralization
- reactions
- real world examples
Lesson 18: LAB for
Acids/Bases
- Titration
Lesson 19:
Lesson 20: Unit Test
Review/Study day
-Jeopardy style review
day
Big Ideas
Properties of solutions
can be described
qualitatively and
quantitatively, and can
be predicted
People have a
responsibility to
protect the
integrity of Earth’s
atmosphere
Living things
depend for their
survival on the
unique physical
and chemical
properties of
water
Guiding Questions
Describe the
unique
characteristics of
water as a solvent.
How does
acid/base
chemistry relate to
solutions and
solubility?
Identify
environmental
factors,
consequences and
resolutions of
water pollution.
Learn about the
qualitative and
quantitative
analysis of
solutions including:
the solubility table,
ion dissociation
and polarity.
Overarching Question:
Describe water as a universal
solvent. Identify common
contaminants in water (sourcing
at least one acid, one base, one
ion). Explain their origin, their
removal, and their environmental
impacts.
Check Out Our Blog!
http://solutions-and-solubility.blogspot.com/
Activity: Trivia Board Games
Common Misconceptions
• Students often do not realize that gases
dissolve better in cold water as opposed to
hot. They expect all things to dissolve better
as the temperature is increased.
• Stirring a solute-solvent mixture or increasing
the surface area of the solute will NOT
increase its solubility in a solution.
Common Misconceptions
• Students may think that a higher pH value
means more acidic. Reinforce the opposite.
• Reinforce that “concentrated” (having a high
concentration of particles in mol/L) is different
from “strong” (dissociates 100%), and “dilute”
(having a low concentration of particles in
mol/L) is different from “weak” (dissociates
much less than 100%).
Thank You!
Questions?