Transcript Introduction to the Chemical Properties of Matter

Introduction to the Chemical
Properties of Matter
CHM1111 Section 04
Instructor: Dr. Jules Carlson
Class Time: M/W/F 1:30-2:20
Course Materials
1. Chemistry, Canadian Edition, 1st edition,
Olmstead, Williams, Burk
2. Student Solutions manual to accompany
Olmstead et al. (Digital copy with text)
3. Laboratory Manual
4. WHIMIS Handbook
5. I>Clicker 2 or I>Clicker
Timeline/Office Hours
Section 04: Classes Mon/Wed/Fri 1:30-2:20 PM
Office Hours: Mon/Wed 11 AM – 12 PM
No classes:
Monday, October 10th or Friday, November 11th
Mid-term: Wednesday, October 12th
Final Exam: Friday, December 9th
Mark Breakdown
•
•
•
•
•
Mid-term exam:
Laboratory:
I>clicker questions:
Final Exam:
Total:
20 %
25 %
10 %
45 %
100 %
I>Clickers
• Great way to keep up with how well you are
understanding lectures
• One question per lecture – get mark for voting
• Makes up 10 % of your final grade
• Come to class and always remember your
I>clicker!!!!
• Register online at
http://www.iclicker.com/support/registeryour
clicker/
• 2 Freebies
WileyPlus
• Make sure to register on WileyPlus
• Instruction video on registration found at:
https://www.wileyplus.com/WileyCDA/Section/i
d-406168.html
• Lecture notes available on the site
• Online textbook plus other resources
• Practice assignments that are not worth marks
but you are strongly encouraged to do
Labs
Buy a lab manual this week at the Petrified Sole Bookstore (in
the basement of the Bulman Student Centre). Bring it to your
first lab next week.
Attend your SCHEDULED first lab, during the week of Monday
Sept. 12th to Friday Sept. 16th.
All lab sections are full, so you cannot attend at a different
time.
You must attend this first lab in order to find out which
experiment or workshop you will be doing the following week.
(Not everyone will start with Experiment #1.)
Questions? Contact Theresa Baran
Lab Coordinator [email protected]
To do well in the course
• Read ahead in your textbook – don’t get
behind.
• Do LOTS of problems!!!!!!!! Work together!
• Problems will be assigned from the textbook
plus feel free to do more on your own.
• Also – weekly assignments will be provided on
WileyPlus
• Feel free to contact me and Theresa, we will
be available by e-mail and have office hours!!!
Chapter 1
• Quick review, you are expected to know this material
from high school.
• Please read Chapter 1 thoroughly for a full review.
• Also, work on the Chapter 1 Assignment (Due Friday
not for marks) on the WileyPlus site.
• Textbook questions:
1.3, 1.5, 1.7, 1.9, 1.11, 1.19, 1.23, 1.25, 1.27, 1.31,
1.33, 1.35, 1.79, 1.85, 1.87
Measurement in Chemistry
• Smallest fundamental unit of a substance is an
atom
• Atoms bond together through ionic or covalent
bonding to produce molecules
• Atoms and molecules are extremely small, so
are measured in moles.
• 1 mole = 6.022 x 1023 molecules or atoms
– Called Avogadro’s number
• The mass of 1 mole of atoms is the molar mass
• Molar masses given on periodic table
Periodic Table
What is the mass of 2 moles of Fluorine?
How many moles in 13 g of Chromium?
Molar mass in g/mol
Concentrations
• Concentrations can be mass per volume or
moles per volume
• In a gas, use m3 as unit of volume (mol/m3)
• In liquids, use L or mL as unit of volume
– Moles per litre: Molar (M)
• Concentrations can be moles per unit mass
– Moles per kg: Molal (m)
• See table 1.1 (page 9) for magnitudes
– Commonly see M (mega), k (kilo), m (milli) and μ
(micro)
Dilutions
• Say we have CaCl2 solution with a
concentration of 50 mM in 100 mL of water
• What is the concentration in 500 mL of water?
• What are the final concentrations in moles per
litre of Ca2+ and Cl- ions?
Chemical Reactions and Stoichiometry
• Stoichiometry: study of amounts of materials
produced and consumed in chemical reactions
• Consider the reaction with 4 mol of H2 and 4 mol
of O2:
2 H2 + O2  H2O
(a) How many moles of H2O should be produced if
the reaction goes to completion and is
completely efficient?
(b) If 3.2 moles of H2O are formed, what is the
percentage yield for the reaction?
Significant figures
• How many significant figures do the following
numbers have (calculate as necessary)?
35
3.54 x 10-3 M
35.0
0.687
6.02 M + 75 mM
5.5 mol
10.5 m3