Chemistry 3 2009 - 2010

0.75 credits/semester
Important note regarding printing

Make the left margin 0.75 in (1.9 cm) and the other margins 0.5 in (1.3 cm) so that the page breaks I built into the pages work as intended. Be sure to remove headers and footers from the Page Setup dialog.

Course Home Page
Course Overview Documents
Lab Safety Rules (RTF file)
Three-ring Binder Information
Common Lab Report Format (SHS) (Word doc)
Lab Report Writing Information (html)
Lab Grading Outline (html) How labs are graded
Personal Introduction Essay (doc)

Please read the Copyright and Terms of Use
Search this site:
Custom Search

Course Overview

In this course you will learn about some of the important topics in chemistry. We will start with some essential math skills and use these to cover such topics as density, atomic structure, the nature of light, nuclear chemistry, molecular structure, and chemical reactions. We will always endeavor to make the work applicable to everyday life.

What to Bring to Class

  1. binder
  2. pencil or pen
  1. basic scientific calculator
  2. lab notebook (for lab days)


The grading policy of Chemistry 3 is designed to reflect how much work you put into learning. If you put in the effort to learn the material you will do well. Your grade will be based on the following categories.

Make-up Work

If you miss class, and it is an excused absence, then you may make up the work you missed. You must see me before class starts or after it has ended and ask for the work. It is your responsibility to find out what you missed and to do it. You must complete the work no later than the due date plus the number of days absent or the usual late penalties will apply.

Late Work

Lateness is not acceptable unless you were absent and have shown me proper documentation to prove your absence was excused. Arrangements to hand in work missed when absent must be made at the first class meeting upon your return. Late work is subject to a penalty of 25 points on a 100 point assignment. Late work will be accepted only within two days of the original due date. After that it will not be accepted. Incomplete work handed in on time will not be eligible for do-overs. Incomplete work handed in late will not be accepted.

Lab Safety

Safety is of paramount importance in the lab. Warnings of particular hazards will be given in the introduction to each lab activity. Students will be reminded once of safety rules. Students who do not heed such reminders will have to sit out the lab and take a zero.

Resources for Extra Help

I am available before and after school most days to provide help with your work. I arrive around 7 am and will usually be here until at least 2:30 pm. If you are struggling make an effort to come and see me. In my experience this one action can improve your understanding (and your grades) immensely.


Once a week I will hold a Chemistry-3 Recitation session. Students may attend at will and will receive two points toward the next quiz for each session they attend. Times and days will be determined but will usually be Tuesdays at 1:45 pm. Recitations last one hour. Points will be given for attendance and participation: come prepared with questions and problems you are having trouble with.

page break

First Quarter

Lab: Observing a Candle (html)

Math Skills
Group Activity: Scientific Notation (html)
Homework: Scientific Notation
Lab: Measurement and Significant Figures
Group Activity: Dimensional Analysis (html)
Homework 1: Dimensional Analysis
Homework 2: Dimensional Analysis
Group Activity: Metrics, Part I
Group Activity: Metrics, Part II
Homework: Metrics
An activity about measurement, precision, significant figures, and accuracy.
Homework: Square and Cubic Units
Group Activity: Density (html)
Lab: Density (html)

Second Quarter

Atomic Structure
Atomic Structure and the Periodic Table (html)
Atomic Structure Homework (html)
Lab: Conservation of Matter (html)
Average Atomic Mass
Group Activty: Average Atomic Mass (html)
Average Atomic Mass homework.
Lab: Atomic Mass and Average Atomic Mass
Nuclear Chemistry
A lab (no online handout) about electric forces of attraction and repulsion. This will include a demonstration of the van de Graff generator.
Group Activity: Introduction to Nuclear Chemistry
Group Activity: Radiation 1 Alpha and Beta Radiation
Group Activity: Radiation 2 Positron and Electron Capture Radiation and Radiation Exposure
Lab: Geiger Counter
Homework: Radiation

Pre-lab for Size of a Molecule
Lab: Size of a Molecule
Lab: Hard Water an investigative style lab in which you must create your own procedure.

page break

Third Quarter

Electron Structure of Atoms and Periodicity
Group Activity: Atomic Structure II Now we move on to cover the electron structure of atoms.
Homework: Atomic Structre II more work with atoms, electrons and ionic charges
Lab: Intro to the Bunsen Burner
Ionic and Covalent Compounds
Activity: Chemical Formulas and Compounds we will learn about bonding and ionic compounds
Here is the first homework assignment that goes with this group activity.
Here is the second homework assignment that goes with this group activity.
Here is an assignment which uses an online applet to help you learn how to build ionic compounds from their ions. This is homework if not completed in class.
And the third.
Lab: Solubility of Ionic Solutes
Lewis Diagrams
How to Draw Lewis Diagrams
Molecules to Draw Lewis Diagrams for
Homework: Drawing Lewis Diagrams

Lab: Glurch and Oobleck a fun activity in which the properties of colloids and polymers are investigated.

Light and the Electromagnetic Spectrum
Group Activity: Light

Fourth Quarter

Homework: Light
Hydrogen Atom Simulator Game
Pre-lab: Flame Tests due on the first day of the lab
Lab: Flame Tests
Lab: Hydrogen Atom Simulator Do problems 1 - 5 for homework. The rest of the questions will be answered using an online simulator (link is on the lab page).
The Mole
The Mole
Lab: Moles, Molecules, and Grams
Homework Assignment: The Mole and Molar Mass
Chemical Equations
Balancing Chemical Equations
Homework for Balancing Chemical Equations
Basic Stoichiometry
Homework Assignment: Stoichiometry (aka Chemical Ratios)
Moles, Empirical Formulas, Stoichiometry, Limiting Reagents
Lab: Salt, Ice, and the Coldest Mixture
Here are a few documents to give group work some shape and definition so that it can be a self-regulating learning tool:
Group Work Definitions

A few useful links

Chemistry Links
Periodic Table (PDF) from
Periodic Table Image suitable for printing
Periodic Table colored by groups from
A Reference Sheet of Common Atomic and Polyatomic Ions
Examples of Chemistry Problems
Vapor Pressure of Water Data
A fully-functional scientific calculator for chemistry including a table of useful constants.
A Partial Bibliography of works consulted
And here’s a useful download: a program that will quickly and easily convert units for you. Download and unzip to use.

Teachers and other Professionals:

This material is copyrighted but I grant permission for in-classroom use. Please give the URL and not copies to other teachers. Only pages directly downloaded may be used, do not distribute paper copies. Requirement for use: send me an email and give me feedback on your success with these materials.
a a r o n . a . k e l l e r [at] g m a i l . c o m
You will have to remove the spaces to use this address.

Last updated: Aug 25, 2009             Keller Home