On Tuesday you will have your first exam. Here is a checklist of problems and concepts you will need to know:
Be able to:
- count significant figures in a number
- perform addition/subtraction and multiplication/division and present the answer with the correct significant figures
- explain the difference between precision and accuracy
- convert numbers from decimal form to scientific notation and vice versa
- carry out metric conversions with the units of milli, kilo, and centi
- carry out metric to English conversions given the correct conversion factors
- solve density problems
- explain the difference between kinetic and potential energy and give examples
- give the symbols and names of the most common elements (highlighted in yellow on your periodic table)
- classify matter as gas, liquid, solid, and colloid and give examples
- name the types of phase transitions: melting, condensing, evaporating, etc.
- calculate heat, mass, change in temperature or specific heat using the heat equation
- calculate an unknown specific heat using the heat transfer equation
- explain the terms of the scientific method: hypothesis, law, theory, qualitative and quantitative data, observation
What will be given to you:
I will print the heat transfer equations on the exam. I will also give you any English – Metric conversion factors. I will remind you that the density of water is 1.00 gram per milliliter and that the specific heat of water is 1.00 calorie or 4.184 joules per gram-degree. I will also give you a copy of the periodic table with the symbols but no names printed on it.
Email me if you have any questions…
Thursday will be a special day. We will have our elements party. Come with 35 copies of a business card about the element you chose. Here is a video of the elements party of a previous class. Look at the samples to get some ideas…
Also we will have a quiz on density. Be sure you can find the mass, volume and density given two of these three quantities. Also be sure you understand that mass can be measured by difference (subtract out the mass of the container) and that volume can be determined by the displacement of water (final water level – initial water level). Know that gas densities are expressed in grams per liter, liquids in grams per mL and solids in grams per cubic centimeter. Also know that 1 cubic centimeter (1cc or 1 cm3) = 1 mL.
See you on Thursday!!
1. Classification of matter including types of colloids
2. Classification of types of energy – potential vs. kinetic. Also be able to give examples of both types.
3. Temperature conversion Kelvin to Celsius and vice versa.
4. Density conversions (d=m/v)
5. Who’s who: Dalton, J.J. Thomson, Rutherford – main contribution
6. Subatomic particles: relative size, location, charge
7. Terms of the periodic table e.g. alkali metals
8. grams to moles and vice versa conversions
9. Names of elements – common elements
10. Polyatomic ions
Study definitions of scientific method, states of matter, classification of matter (see powerpoints). Know how to count significant figures, convert to scientific notation, round, present answers with correct significant figures after adding/subtracting and multiplying/dividing numbers.
Please remember to bring your laboratory notebook!! Also you need to have the laboratories for September 3rd already printed. Keep checking the syllabus to know what each class day will require. We will have our first quiz on Thursday and it will cover material in Chapter One and Chapter Two. You should be reading the textbook. Also remember to dress appropriately for laboratory – no sandals, no shorts, minimize bare skin. This is for YOUR safety. Enjoy the holiday. See you soon!
There will be a small group study session for Chemistry 121 held regularly on Wednesday in my office – Room 3824 - from 12 to 2. Mark Carter will conduct the session.
1. Bring a laboratory notebook and a calculator to every class. The notebook should be left blank until we discuss how to set it up. For more information visit: http://justonly.com/chemistry/lab_notebook/index.php
2. Fill out the student interview and email it to firstname.lastname@example.org
3. Sign up for justonly.com website log in section
4. Read “Introduction to the Scientific Method” by Frank Wolfs and answer the questions.
5. Begin to learn the names and structures of the polyatomic ions. Don’t wait until this comes up in class – start now to have enough time!!
1. Sign Up for the course website
2. Fill out student interview and email to email@example.com
3. Memorize all of the polyatomic ions (as soon as possible – begin NOW)
4. Print first lab (remember No Sandals and No Shorts in lab)
5. Buy a lab notebook (less than $5) but do NOT write in it.
We are confirmed for class at Harold Washington on Monday July 15th. Please arrive by 9:00 AM. Professor Tom Higgins is our host.
We will meet in room 913. You will need to take the elevator to the 9th floor. Send me a text message or call if you get lost:-)
There has been a lot of rain and the plants are loving it. In just one short month the raspberries have exploded:
A few weeks resulted in tremendous growth for the raspberries.
And here is the latest photo from today:
The pond continues to present challenges. The bleeding heart plant was moved to better show off the dwarf maple tree. The gooseberry bush was moved to stop it from taking over all the space. A new ground cover is being attempted to fill in the area that tends to erode.
Sometimes you just have to try different approaches until you have the right plants in the right places. Right now there are no fish in this pond. They are easily eaten by wandering creatures during the night. Once these plants have stabilized the next step will be to try lilies again.
My son Paolo has set up hydroponics in the greenhouse. All the fish are safe inside closed doors.
Strawberries Grown Hydroponically
And to finish this posting I would like to share some photos from today of blooming flowers of various types:
Roses and Wild Flowers
Asiatic Lilies and Delphinium
I’ve made a list of ten reactions I would like all my students to know:-)
Monday April 29th from 2 to 4
Monday May 6th from 1 to 4
These two sessions are reserved for Chem 201 students to prepare for Exam III and the Final.
Areas of the Periodic Table: Alkali Metals, etc.
diamagnetic and paramagnetic
Study Figure 9-9, Figure 9-12, Figure 9-18
Electronegativity: Figure 10-6
Writing Lewis Dot Stuctures for covalent molecules and for polyatomic ions.
Skip 10-6 radicals but learn about expanded valence.
Table 10-1 is very, very important.
single bond is longer than a double bond and a double bond is longer than a triple bond
triple bond is stronger than a double bond which is stronger than a single bond
triple bond means bond order of 3, double bond means bond order of 2, and single bond means bond order of 1
Table 11.1 (memorize)
sigma vs. pi
hybridization for different geometries
12.1 to 12.4 only
I received this email from Mike Davis, VP at Wright College:
Good evening. Forgive the late notice, but I wanted to make sure that
word got out as widely as possible.
On Friday 4/26 Wright College will be hosting an
Undergraduate Research Symposium. The focus of the program is the
Research Experience for Undergraduates (REU). This is an initiative that
is funded by the National Science Foundation (NSF) that seeks to include
undergraduate students in authentic research. REUs are paid positions
that are hosted all over the United States. Community College students
are eligible to apply for these programs, and would benefit greatly from
participating (take it from a former REU!).
The event will feature two panel discussions:
Student Panel – Three students who have
completed undergraduate research will discuss some of their experiences,
including how they got there, what kind of work they did, how it helped them,
and advice for other interested students.
Researcher Panel – Representatives from Hope
College, Northwestern University, and IIT will discuss their REU programs, the
opportunities for community college students, and what it takes to be
successful in these programs.
This will take place at the Wright College Theatre on Friday
April 26th. The program goes from 9:00 – 11:00 with
refreshments being served at 8:30.
Please pass this information on to your students. They
will be able to talk with REU directors and professors, who can give them
advice on applying for future programs.
Interim Vice President
Wilbur Wright College
The quiz tomorrow will cover Lewis Dot structures, geometry and shape of molecules, polar vs. non-polar – very similar to the lab. If you want your graded lab back – stop by today.