Unit 8: Kinetics and
Equilibrium

Unit 8 of our 9unit course
focuses on
the topics of Kinetics and Equilibrium. We will explore details
about reaction rates, considering what variables affect the rates of
reactions and why, how reactions take place, and how experimental data
can be used to determine equations that describe reaction rates. This
is the topic of Kinetics. But we will also explore the topic of
Equilibrium. This includes topics like reversible reaction systems in
which reactants don't completely react away and what can be done to persuadethem
to more fully react. We will use equilibrium equations to predict
the final concentrations and/or pressures of reactants and products.
The unit will end with our Maker Fair Project ... which for onehalf of
our students will involve the creation of an automated titration system.
The unit will include the usual blend of conceptual knowledge with
mathematical analysis. There will be approximately 9 days devoted to
the unit with the first 23 days being focused on the topic of
Kinetics.

Unit 7 Tests

The Unit 7 Tests have been graded. You
are welcome to view them during lunch hours this week and next. I am
also available after school MondayThursday. Let me know when you are
coming in and I will be in my office.

Collision Model

Our book is a little short on the topic
of the Collision Model and Reaction Mechanisms. The following page of
terminology with links to informative images may be helpful.
View Collision Model Terminology.

Unit 8 Schedule

Our Unit's schedule is a little
tentative right now due to complications with the Maker Fair Project.
This week's schedule is rather certain but projections into the
following week are not.

What is Meant by
"Annotating" in a Lab Report

We tend to do two types of
labs  (1)
labs that include multiple observations in an effort to identify
properties and trends in those properties and (2) labs that include
careful measurements and subsequent calculations in an effort to
determine an unknown quantitative value. When doing the second of these
two types of labs, there are several measurements followed by an
extensive set of calculations. The Conclusion section is generally
short but the Calculation section is long. The role of the Calculations
is to document and present the logic as to how the measurements lead to
the quantitative value that the lab proposes to find. A good presentation
of measured data and calculations will include annotations. Annotations
are short notes that convey what the subsequent calculation involves
and the logic behind it. The concept of an annotation was discussed in
class on Tuesday, December 6. For those who would like to review the
discussion, the notes are provided here.
View Notes on
Annotations.

Periodic Table in
Pictures and Words


Mr. H's Little Secret

Pssss. Hey bud! I
have a secret to
share. Now that you know how to calculate the molar mass, here's a
little cheat you should be permitted to use. It's called a Molar Mass
Calculator and you will find several by following the links below. You
type in the
formula and it calculates the molar mass.


This
page changes nearly every day; reload
or refresh to receive the most recent schedule.
Today
in Class

Wednesday, April 24
Focus Question(s):
 How can concentrationtime data be used to determine a rate law equation?
 What variables affect the rate of reaction?
 What is a reaction mechanism and how can potential mechanisms be evaluate in light of a rate law equation?
Activities:
 Seating Charts
 Method of Initial Rates, pp. 36, Q#45
 Introduction to Reaction Mechanisms (pp. 79, Q#1, Q#35)
 Lab KE2: RedGrey Equilibrium Simulation
 Discuss Equilibrium Concept
Homework:

Next
Time in Class

>> Friday, April 26 <<
We
will be focusing on equilibrium, equilibrium expressions, and
equilibrium mathematics. It's a BIG day for laying the groundwork for
understanidng the remainder of the unit!

Periodic
Tables

Are you in need of a periodic table? Try one
of the following websites:

