Wed., Jan. 30, 2013

Objectives:  Finish Final Exam!

Mon., Jan. 28, 2013

Objectives:  Begin Final Exam!

Fri., Jan. 25, 2013

Objectives:  Applying stoichiometry to  
chemical reactions
Announcements: Final Exam Begins Mon.

Warm-up: How many grams of MgI₃ 
 are there in 4.5 moles of that material?
Homework: Equation Stoichiometry 1

Thurs., Jan. 24, 2013

Objectives:  Translate chemical equations in sentence form into standard chemical 
equations involving formulae
Announcements: 
Warm-up: How many moles is 46.34 
grams of MgClO₃?
The Power of Stoichiometry
In a double displacement reaction, a 
precipitate of lead (II) iodide is formed  
when solutions of lead (II) nitrate and 
potassium iodide react.How much  
potassium iodide is needed if you were 
to use 10 grams of lead (II) nitrate?
Homework: Decoding

Wed., Jan. 23, 2013

Objectives:  Identify type, predict products &
balance
Announcements: 
Warm-up: Give the formula for the following
substances:
Aluminum Bromide
Barium Phosphate
Iron (III) Hydroxide 

Homework: Decoding

Tues., Jan. 22, 2013

Objectives:  Identify type, predict products &
balance
Announcements: 
Warm-up: The common acids...

 
Predicting products of chemical reactions
Homework: "Sheet 1" balancing & decoding

Fri., Jan. 18, 2013

Objectives:  Identify type, predict products &
balance
Announcements: Final Exam
Warm-up: Write the chemical equation:
"When chlorine gas is bubbled through ammonium iodide solution, the products are aqueous ammonium chloride and iodine crystals which precipitate out of solution."
Predicting products of chemical reactions
Homework: "Sheet 1" balancing & decoding

Thurs., Jan. 17, 2013

Objectives:  Identify type, predict products &
balance
Announcements: \
Warm-up: Write the formula for niobium (V) iodate
Predicting products of chemical reactions
Homework: None

Wed., Jan. 16, 2013

Objectives:  Predict products of a chemical reaction
Announcements: Show me your homework
Warm-up: What is the empirical formula for a substance which is 6.42 % phosphorus, 14.69 % chlorine & 78.89 % iodine?
Predicting products of chemical reactions
Homework: Predicting Reaction Products

Tues., Jan. 15, 2013

Objectives:  Review for assessment
Announcements: Mole Quiz
Warm-up: What mass of Al₂S₃ is composed of 
7.4 x 10²⁰ formula units?
Types of chemical reactions
Homework: Identify Types of Reactions

Mon., Jan. 14, 2013

Objectives:  Review for assessment
Announcements: Mole Quiz
Warm-up: What mass of Al₂S₃ is composed of 
7.4 x 10²⁰ formula units?
Types of chemical reactions
Homework: Identify Types of Reactions

Fri., Jan. 11, 2013

Objectives:  Review for assessment
Announcements: Mole Quiz
Warm-up: What mass of Al₂S₃ is composed of 
7.4 x 10²⁰ formula units?

Thurs., Jan. 10, 2013

Objectives:  Review for assessment
Announcements: Mole Quiz tomorrow
Warm-up: What mass of Fe₂S₃ is 0.15 moles?
Mole road map
Percent composition, empirical formula & molecular formula
Sample Quiz Homework

Wed., Jan 9, 2013

Objectives:  Review for assessment
Announcements: Mole Quiz on Friday

Warm-up:  Find the molar mass of Zr₄Mn₆U₃At₂
Mole road map
Percent composition
Lab Review

Tues., Dec. 18, 2012

Objectives:  Experimentally determine the 
number of moles of Oxygen that combines
with magnesium when heated
Announcements: 
Warm-up:  Holiday Special

Mon., Dec. 17, 2012

Objectives:  Experimentally determine the 
number of moles of Oxygen that combines
with magnesium when heated
Announcements: Typed lab write-ups due today
Warm-up:  None
MgO Lab Expectations
Lab Write-up 

Fri., Dec. 14, 2012

Objectives:  Experimentally determine the 
number of moles of Oxygen that combines
with magnesium when heated
Announcements: Lab write-up due Monday
Warm-up:  None
MgO Lab Expectations
Lab Write-up

Thurs., Dec. 13, 2012

Objectives:  Experimentally determine the 
number of moles of Oxygen that combines
with magnesium when heated
Announcements: Lab write-up due Monday
Warm-up:  None
MgO Lab Expectations

Wed., Dec. 12, 2012

Objectives:  Experimentally determine the 
number of moles of Oxygen that combines
with magnesium when heated
Announcements: Did you show me your prelab?

• Title
• Procedure in sketches
• Data table
• Equation for this reaction 

Warm-up:  None
Lab work (heat strongly for 10 minutes)
Remove cover and heat 1 more minute
Bunsen burner in your hand, point the flame directly onto the contents for 1 more minute 

Tues., Dec. 11, 2012

Objectives:  Experimentally determine the 
number of moles of Oxygen that combines
with magnesium when heated
Announcements: Show me your prelab:  MgO

• Title
• Procedure in sketches
• Data table
• Equation for this reaction 

Warm-up:  None
Lab work (heat strongly for 10 minutes)
Percent Composition
Homework: Mole Road Map Practice

Mon., Dec. 10, 2012

Objectives:  Convert between moles, mass & molecules or atoms
Announcements: Stamping homework listed below (Did you try it?)
Warm-up:  0.062 moles of Al metal will have what mass?  How many atoms will be in that collection?
Lab Tomorrow: MgO
Produce MgO from magnesium.
Balance equation
Measure mass Mg used
Mass of MgO produced
convert to moles check balanced equation
Percent Composition
Homework: Mole Road Map Practice

Fri., Dec. 7, 2012

Objectives:  Convert between moles, mass & molecules or atoms
Announcements: 
Warm-up:  How many moles of CaCr2O7 will be produced from 4 moles of oxygen...
CaO  +  Cr + O2  ---->  CaCr2O7
Percent Composition
Homework: Mole Road Map Practice

Thurs., Dec. 6, 2012

Objectives:  Convert back and forth between grams, moles and molecules.
Announcements: 
Warm-up:  Fukalite is a mineral that gets its name from the Fuka mine in the Fuka region of southern Japan. It is very rare, and is a form of calcium silico-carbonate, with formula
Ca₄Si₂O₆(CO₃)(OH,F)₂.  Find it's formula mass?
Understanding the mole and molar mass
Mole road map
Homework: None

Wed., Dec. 5, 2012

Objectives:  Convert back and forth from grams to moles and moles to grams.
Announcements: Homework due today!
Warm-up:  Balance this chemical equation and describe the chemical change in words:
BaCl2  +  AlP ----->   AlCl3  +  Ba3P2
Understanding the mole and molar mass
Mole road map
Homework: Simple Mole Problems

Tues., Dec. 4, 2012

Objectives:  Convert back and forth from grams to moles and moles to grams.
Announcements: Homework due today!
Warm-up:  Write and balance the equation described below:
Vinegar reacts with crystalline ammonium carbonate to form a precipitate called ammonium acetate, carbon dioxide and hydrogen gas.
Understanding the mole and molar mass
Mole road map
Homework: Simple Mole Problems

Mon., Dec. 3, 2012

Objectives:  Convert back and forth from grams to moles and moles to grams.
Announcements: Homework from last Thursday will be collected  tomorrow
Warm-up:  Balance the following reaction...then, if 3 moles of  sulfur is actually burned, how many moles of SO2 would be produced in the end?
S8 + O2 ----> SO2
Understanding the mole and molar mass
Mole road map
Homework: Simple mole calculations

Thurs., Nov. 29, 2012

Objectives:  Be able to use "moles", "grams" &
"particles" equally well to describe amounts of
a substance 
Announcements: No School tomorrow!
Warm-up:  How many moles of "stuff" are in a googol? (Now, what was a mole again?)
Understanding the mole and molar mass

Homework: Simple mole calculations

Wed., Nov. 28, 2012

Objectives:  Explain the concept of a 
mole and how a mole is related to atomic
mass, molecular mass & avogadro's number 
Announcements: 
Warm-up:  Complete and balance this equation:
AlP  +  Ca(CN)2 -----
The need for BIG numbers in chemistry
Avogadro's number, n
What's a mole?
How Big is a mole, really?

Understanding the mole and molar mass
The real meaning of a balanced equation
Homework: See yesterday's challenger

Tues., Nov. 27, 2012

Objectives:  BIG numbers in chemistry
Announcements: Grading this Friday - No school!
All work must be in by today after school 
Warm-up: What are the relative abundances of
the naturally occurring isotopes of silver?
The need for BIG numbers in chemistry
Avogadro's number, n
What's a mole?
How Big is a mole, really?
Homework:  Challenger (balance this one...)

Mon., Nov. 26, 2012

Objectives:  Practice skills at balancing equations
Announcements: Grading this Friday (no school)
Warm-up: There are 2 isotopes of silver that occur naturally.  The heavier one has 2 more neutrons than the lighter one.  If one of them is Silver-109 which one is more abundant in nature?
Table of Contents
Mixed Practice
Finish activity..."Flying Circus of Chemistry"
Homework:  Challenger (balance this one...)
Br2 + NaOH = NaBrO3 + H2O + NaBr

Mon., Nov. 19, 2012

Objectives:  Practice skills at balancing equations
Announcements: Grading is Nov. 30
No school tomorrow
Table of Contents 
Warm-up: Which of the following will have
a roman numeral in the name?
Co(CN)2.....LaN.....Au2S.....Rb3PO4.....Sn3N4
Balancing chemical equations - activity...
"Flying Circus of Chemistry"
Homework: 

Fri., Nov. 16, 2012

Objectives:  Demonstrate how substances
change in a chemical equation
Determine the numbers of each atom
in a chemical equation
Announcements: Check your grade
Hand in balancing and the challenger Monday
Table of Contents 
Warm-up: What's wrong with these formulae/names?
Co - carbon monoxide
MgNO3 - manganese nitrate
FeI - Iron (I) iodide 
CoCO3 - cobalt carbonate 
Balancing chemical equations  
Symbols used in chemical equations 
Homework:  Challenger (balance this one...)
Na2Cr2O7 + Pb(NO3)2 + H2O = PbCrO4 + NaNO3 + HNO3

Thurs., Nov. 15, 2012

Objectives:  Demonstrate how substances
change in a chemical equation
Determine the numbers of each atom
in a chemical equation
Announcements: 
Warm-up: Write the formula for manganese 
(VI) pyrophosphate & write how many atoms 
of each type are in that formula.
Balancing chemical equations  
Symbols used in chemical equations 
Homework:  None

Wed., Nov. 14, 2012

Objectives:  Demonstrate how substances
change in a chemical equation
Determine the numbers of each atom
in a chemical equation
Announcements: Checking Homework
Warm-up: Whoosh Jar!
Balancing chemical equations  
Symbols used in chemical equations 
Homework:  None

Tues., Nov. 13, 2012

Objectives:  Demonstrate how substances
change in a chemical equation
Determine the numbers of each atom
in a chemical equation
Announcements:  Beanium poster in cabinet
by end of the day
Warm-up: List how many of each atom 
is in Ca3(PO4)2.  Use the glass beads to 
show the structure of this substance.  Draw
your marble structure in your journal. 
Symbols used in chemical equations 
Balancing chemical equations  
Homework:  Balance these chemical equations...

Fri., Nov. 9, 2012

Objectives:  Demonstrate how substances
change in a chemical equation
Determine the numbers of each atom
in a chemical equation
Announcements:  No School Monday!
Warm-up: There are 4 naturally occurring isotopes of sulfur.  Sulfur-32 has an isotopic 
mass of 31.97 amu while the atomic mass of sulfur is 32.2.  Make a statement (or 2 or 3) about the isotopic abundances of the 4 isotopes. 
Natural isotope list with mass & abundances
Beanium - Poster must be done by Tues. EOS
Chemical reactions & equations 
Homework:  Balance these reactions...

Thurs., Nov. 8, 2012

Objectives:  Construct  chemical structures with
manipulatives.  See how structures change in chemical reactions
Announcements: No school Monday!

Warm-up: How many protons, electrons and neutrons does chromium-55 have?
Finish Beanium poster
Check homework 

Chemical reactions & equations

Homework:  None

Wed., Nov. 7, 2012

Objectives:  Simulate how the atomic mass of elements is found/calculated
Announcements:  
Warm-up: Why does Lead-204, not have
a mass of 204 amu? 

Natural isotope list with mass & abundances

Write-up for Beanium - Poster
Homework:  #3, 4, 5 & 6 only