This Week in SCY High Chemistry

For the Week of November 12

First Quarter ends this week. Our first exam is this week (11/15/2007).

The water filtration lab will be further developed this week. Think about ways to improve the experiment. Lab notebooks will be collected on test day (11/15/2007).

Exam 1
Exam 1 will be held on Thursday 11/15/2007. You will have all class period to complete the exam. Exam 1 will cover all or most of the following:

Subatomic Particle Counting
Isotopes and Ions
Density Calculations
Dimensional Analysis
Chemical Families
Classification of Matter
Molar Mass
Mole Calculations: moles <--> grams; moles<-->atoms/molecules
Vocabulary since Chapter 1

Objectives:

Tuesday - Continue to practice formula molar masses; to continue to practice calculations involving moles.

1. Warm Up

• What is the difference between an ion and an isotope? Do you believe isotopes can be ions? Do you believe ions can be isotopes? Explain.

• 1.44 grams of diamonds (pure carbon) were used to make my homie Nate's grill. How many
• moles in the sample?
  
• atoms in the sample?
• neutrons in the sample?
  

2. Go over quiz
3. Molar Masses of compounds: introduce homework
4. Lab/Project: Water filtration: testing for ions
KEY IDEA: Ions conduct electricity

• All notes in journal. Stamp for completeness.
  
  1. Introduce battery/circuit concept
  • voltage, current, resistance
    
  • circuit diagram
    
  2. Introduce voltmeter:
     
  3. LAB:
     
• Hypothesis: if ions conduct electricity, then if there are ions in the filtered water, the ions will complete a simple electrical circuit as evidenced by the lit LED.
• 
  
• Experiement: Create a simple circuit to demonstrate the presence of ions.
  
• Test conductivity of penny and lemon batteries to LED
  
• Test conductivity of distilled water (Control)
  
• Test conductivity of tap water
• Test conductivity of salt water
• Test conductivity of vinegar
• Test conductivity of sugar water
• Test conductivity of filtrant
  

• Data
• Volatage/current accross penny battery
• Voltage/current accross lemon battery
• Volume of sample 1
• Volume of sample 2
  
• Volume of recovered filtrant 1
• Volume of recovered filtrant 2
  

Thursday - Exam 1

Friday - Einstein's Big Idea (movie); Preview nuclear chemistry unit.


IN-CLASS ASSESSMENT:

• Use HW problems
  

Project: Chemical Family Coat of Arms is (Due 11/2/2007) and the ROUGH DRAFT essay portion is due (11/6/2007)

Periodic Table of the Elements Class of 2010 Edition. We will begin our first project, which will be on-going throughout the year. In this project, you will begin by

1. PICK an element you want to learn about.
2. RESEARCH the required information about your element.
   
3. PROPOSE a clever design element tile for an element tile.
4. TYPE a short report contrasting the positive and negative impact your element has for society.
5. PRESENT to the class about what you learned.

Homework:

• Molar Mass 2 (check 11/16/2007)