5.3.12 Percent Yield and Limiting Reagent
5.1.12 More Stoich Practice
1) Using the following equation:
2 NaOH + H2SO4 -----> 2 H2O + Na2SO4
How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide and you have an excess of sulfuric acid?
2) Using the following equation:
Pb(SO4)2 + 4 LiNO3 ------> Pb(NO3)4 + 2 Li2SO4
How many grams of lithium nitrate will be needed to make 250 grams of lithium sulfate, assuming that you have an adequate amount of lead (IV) sulfate to do the reaction?
2 NaOH + H2SO4 -----> 2 H2O + Na2SO4
How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide and you have an excess of sulfuric acid?
2) Using the following equation:
Pb(SO4)2 + 4 LiNO3 ------> Pb(NO3)4 + 2 Li2SO4
How many grams of lithium nitrate will be needed to make 250 grams of lithium sulfate, assuming that you have an adequate amount of lead (IV) sulfate to do the reaction?
4.25.12 Stoichiometry Practice For Quiz on Friday
Do all the problems on this website. You must be able to show your work on the quiz on Friday. We will go over these tomorrow in class.
4.23.12 Stoichiometry Lecture Podcast
Your assignment is to watch the following podcast and take 2-3 pages of notes over it. Turn your notes in at the end of the hour. Notes must be hand written.
4.3.12 Stoichiometry Practice Problems
Give these a try. You will have today in class to practice and tomorrow we will go over these as a class. Remember to follow your steps.
1. Balance the equation if it is not already.
2. Write down what you know and what you need to find.
3. Write down the generic 'game plan' equations.
4. Put numbers in and solve.
5. Check your sig figs.
Keep in mind that there are about 4 problem types that you have a work flow that you can use to solve. Also remember that the name of the game is to use conversion factors to cancel things out until you get to the answer you are looking for.
1. Balance the equation if it is not already.
2. Write down what you know and what you need to find.
3. Write down the generic 'game plan' equations.
4. Put numbers in and solve.
5. Check your sig figs.
Keep in mind that there are about 4 problem types that you have a work flow that you can use to solve. Also remember that the name of the game is to use conversion factors to cancel things out until you get to the answer you are looking for.
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3.4.12 New link on color of chem
Be sure to check the reading lamp on the color of chemistry website. The top link (color matters) is awesome. If you don't think its cool... your weird.
3.4.12 Another note about the book and the lab.
Just got off the phone with Books a Million. They STILL do not have more books but said a larger shipment should be in by Friday. Be sure to call ahead before you go to the store. So be sure to check amazon or other book stores to get your book. At this point I would not rely on Books a million. The lab will be postponed until next week because of the junior/senior programs this week. So if you don't have the book be sure to get that documentary done this week !!!!!!!
3.1.12 Regarding Your Book for the Book Report
Books a Million does not have all 50 copies that were ordered. I spoke with them and they informed me that they will be getting a few more in this week and the rest will be here ASAP (could be as late as 2 weeks from yesterday when I spoke with them). You are still responsible for reading the book and writing the report. You can try other book stores in town or you can always go through Amazon or share with another student in the class who has the book. Also, the public library should have it. Be sure to call ahead before you go to Books a Million if you want to continue to try and get the book there 417-659-8600
3.1.12 Reactions Practice
Turn these in on Monday. They will be graded very generously... more or less if you have attempted the problem.
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The Month of March: Chemistry of Color Project
As you know, I will be out on paternity leave for the month of March. Starting this Thursday, your teacher will be Mrs. Richardson. We have already discussed the rules and guidelines for the color of chemistry project and all the information you need is on the color of chemistry website. Mrs. Richardson may change or modify the rules or requirements for the project. Anything she says goes. It is your responsibility to be in class and ask her questions about aspects of the project requirements that you do not understand. You can work on the project tasks in any order you want but there will be three deadlines during the month of March that you must meet. You must submit one assignment per deadline. Mrs. Richardson will determine the deadlines and let you know when they are ahead of time. ENJOY! See you in April.
Net Ionic Equations
Combustion Rxn
Double-Replacement Rxn
Single-Replacement Rxn
Decomposition Rxn
The Synthesis or Combination Rxn
Another look at Balancing Equations
2.17.12 Balancing Equations
2.16.12 Chapter 11 Vocabulary
chemical equation
skeleton equation
catalyst
coefficient
balanced equation
combination reaction
decomposition reaction
single-replacement reaction
activity series
double-replacement reaction
combustion reaction
complete ionic equation
spectator ion
net ionic equation
skeleton equation
catalyst
coefficient
balanced equation
combination reaction
decomposition reaction
single-replacement reaction
activity series
double-replacement reaction
combustion reaction
complete ionic equation
spectator ion
net ionic equation
2.7.12 Chapter 9-10 Review
These will not be graded. Be sure to come to class with questions on Wednesday and Thursday.
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1.2-3.12 Thursday and Friday Assignments Chapter 10 Conversion Practice
Thursday you will complete the 14 practice problems assigned on Wednesday.
Friday you will be randomly called on and asked to put the problems on the board. You will be expected to explain the problem and how you came up with your solution.
Friday you will be randomly called on and asked to put the problems on the board. You will be expected to explain the problem and how you came up with your solution.
1.27.12 Fridays options
Here is what you should do today and in this order.
1. Make sure chapter 10 outline is complete and turned in
2. Work on podcast notes
3. Work on example problems in chapter 10 (we are going to go over these on Monday
1. Make sure chapter 10 outline is complete and turned in
2. Work on podcast notes
3. Work on example problems in chapter 10 (we are going to go over these on Monday
1.23.12 Mole Conversion Podcasts
To start off chapter 10, watch these podcasts on mole conversions. I will spot check your notes on these presentations. I would recommend watching them the whole way through without stopping. Then go back and watch them again and stop the presentation every now and then to jot down some notes.
1.18-20.12 Laws of Definite and Multiple Proportions: Group practice
You and a partner will have 1.5 class periods to complete the practice problems you will be provided in class. On Thursday we will review these as a class.
1.17.12 Laws of Definite and Multiple Proportions: Independent Study
Review the following outline. Write down everything in the outline and add what is underlined. Be sure to attempt the practice problems in the outline you will most likely see one of these on a pop quiz some time in the near future.
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1.11.12 Naming Acids and Bases
Take a look at the following podcast. This will give you a general overview of acids and bases. After you have a slightly better understanding of acids and bases by watching this video you should re-read the 3 short pages in section 9.3 then attempt the problems in the 9.4 lesson check on page 288.
1.10.12 Chemical Formulas
Watch the following videos on naming chemical formulas. It will be in your best interest to pause the videos from time to time and jot down some notes. There is lots of good stuff here that will help you out come exam/homework time. ENJOY!
At the end of class you will submit a piece of paper with the following information from these videos (this is due at the end of the hour and will be graded)
1. Rules for naming covalent compounds
2. Rules for naming ionic compounds
3. All examples of compounds and names given and vice versa.
At the end of class you will submit a piece of paper with the following information from these videos (this is due at the end of the hour and will be graded)
1. Rules for naming covalent compounds
2. Rules for naming ionic compounds
3. All examples of compounds and names given and vice versa.
Extra Credit
Here is an additional outline of the information in chapter 9. To earn five points extra credit you can hand write this outline and turn it in Monday at the start of class.
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1.4.12 Chapter 9 (Correction)
Slight error on yesterdays assignment post. They are due at the end of the hour today, not yesterday. Thats what I get for posting assignments with a running average of 2 hrs sleep per day. See you tomorrow. Be sure to put your notes into the box at the end of the hour. And remember if you don't get four pages out of the chapter, rewrite or condense what you have again until you have four pages.
1.3-4.12 Chapter 9
Read and take four pages of GOOD notes on these pages over the next two days. This will be due at the end of the hour on Tuesday.
P.S. Norah Pearl Mutic was born at 12:26 on 1.1.12. 7 lbs 1 oz.
P.S. Norah Pearl Mutic was born at 12:26 on 1.1.12. 7 lbs 1 oz.
12.7.11 Chemical Compounds
Go to this link and sketch this concept map in your notes.
Review this online lecture. This covers very similar content to what we have covered in class recently.
Take this quiz. Write down your responses and turn this in tomorrow for credit.
Review this online lecture. This covers very similar content to what we have covered in class recently.
Take this quiz. Write down your responses and turn this in tomorrow for credit.
11.7-9.11 The periodic table
For the next three days you will work independently on the following assignments. Feel free to ask the person beside you for some help from time to time but this work should generally be done alone. We will review these and the content from chapter 5 on Thursday and you will have your third exam on Friday.
1. Read chapter 6.
2. Complete all vocab from chapter 6 in your online book.
3. Color code the periodic table I gave you the way it is color coded on pages 168 and 169 in your book.
4. Answer lesson check problems for sections 6.1, 6.1, and 6.3 at the end of each section in chapter 6.
1. Read chapter 6.
2. Complete all vocab from chapter 6 in your online book.
3. Color code the periodic table I gave you the way it is color coded on pages 168 and 169 in your book.
4. Answer lesson check problems for sections 6.1, 6.1, and 6.3 at the end of each section in chapter 6.
11.2.11 More Electron Arrangement Practice Problems !
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10.28.11 Electron Arrangement Practice Problems
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10.20.11 Mini Report
You will write a short two page report on a scientist of your choosing (from the list below). This assignment is open ended however, it would be good to discuss a little about the scientists life, education, major discoveries, contribution to the field of chemistry, and implications of their work to modern day chemistry. Be sure to use proper grammar, spelling, punctuation. You also should include at least two citations.
Scientists
Bohr
Hertz
Planck
Einstein
De Broglie
Heisenberg
Schrodinger
Aufbau
Pauli
Hund
Scientists
Bohr
Hertz
Planck
Einstein
De Broglie
Heisenberg
Schrodinger
Aufbau
Pauli
Hund
Chapter 3-4 Review Problems
We will review these tomorrow. Make sure to attempt all of them and come to class prepared with questions. You can also stop by tomorrow before school or during eagle time for extra help
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10.12.11 Atomic Structure, Isotopes and Atomic Mass
Take a look at the following online tutorial. You will need to take notes on every slide in the tutorial. Go web link on isotopes at the end of the section and read a take notes on that as well.
Next take a look at this tutorial on the periodic table.
Next take a look at this tutorial on the periodic table.
10.6.11
Go to http://www.wwnorton.com/college/chemistry/gilbert2/chemtours.asp
Review the following tutorials...
Chapter 1
Chapter 2
Review the following tutorials...
Chapter 1
Chapter 2
9.30.11 Mass of Cu and Online videos
Check your answers with the people around you. See if you need to modify your answer before you submit it. You will have 10 minutes to collaborate with the people around you before you need to turn in the assignment.
Online Lab:
Go to the book website.
Click Content
Click Chapter 4
Click Chapter 4 Level Activities
Click Directed Lab: Rutherford experiment
Answer all lab questions to the best of your ability on a separate sheet of paper. You will turn this in at the end of the hour. Work with a partner and ONLY USE ONE COMPUTER
Online Lab:
Go to the book website.
Click Content
Click Chapter 4
Click Chapter 4 Level Activities
Click Directed Lab: Rutherford experiment
Answer all lab questions to the best of your ability on a separate sheet of paper. You will turn this in at the end of the hour. Work with a partner and ONLY USE ONE COMPUTER
9.29.11 Mass of Copper atom
Using the information in table 4.1. and the result of question 4 from yesterday to prove mathematically that, based on the structure of a copper atom, the mass you obtained from yesterday is correct. While you work on this I will check your notes from chapter 4. (Hint, you will have to look up the subatomic particles that make up a copper atom).
9.28.11 Chapter 4 Introduction
Answer the following questions to further your understanding of chapter 4. You will need to access the online text to support your answers. We will discuss these in class tomorrow. Write your answers on a sheet of paper. You will work in pairs. Each student will answer all questions on their own paper. Tomorrow I will collect one paper per group.
1. How did Dalton advance the atomic philosophy proposed by Democritus?
2. What instruments can be used to observe individual atoms?
3. In your own words, explain Daltons theory of an atom.
4. A sample of copper has a mass of 63.5 g and contains 6.02 x 10 ^23 atoms. Calculate the mass of a single copper atom. Make sure to follow rules for sig figs.
5. Copy table 4.1.
6. Sketch figure 4.7. Make sure to label the diagram. Do this on a separate sheet of paper, in color, to the best of your ability. Sloppy work will not be accepted. Be sure to use a ruler for your sketch.
7. What experimental evidence led Rutherford to conclude that an atom is mostly empty space?
1. How did Dalton advance the atomic philosophy proposed by Democritus?
2. What instruments can be used to observe individual atoms?
3. In your own words, explain Daltons theory of an atom.
4. A sample of copper has a mass of 63.5 g and contains 6.02 x 10 ^23 atoms. Calculate the mass of a single copper atom. Make sure to follow rules for sig figs.
5. Copy table 4.1.
6. Sketch figure 4.7. Make sure to label the diagram. Do this on a separate sheet of paper, in color, to the best of your ability. Sloppy work will not be accepted. Be sure to use a ruler for your sketch.
7. What experimental evidence led Rutherford to conclude that an atom is mostly empty space?
9.27.11 Exam and Quiz Review
Open the exam below. We will review this in class today.
Quarter 1
9.26.11
Read chapter 4. In your notes copy all vocabulary terms for chapter 4 and key concepts.
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9.19.11
Work on the problem set below. Put this on a separate sheet of paper. We will grade these in class on Thursday! This will help you become more proficient with problems involving significant figures, density, and percent error.
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8.25.11 Properties of Matter
1.)Define the following terms in your notes. We will discuss what you found as a class and make sure we all have good definitions.
mass
volume
extensive property
intensive property
substance
physical property
solid
liquid
gas
2.) Describe some similarities and differences between gasses, liquids, and solids. Draw a diagram that represents what solids, liquids, and gasses look like at an atomic level.
3.) Gallium is a substance that has a melting point of about 30 degrees C. What would you guess the physical state of this substance would be if you were holding it in your hand?
4. BLOG your response to the following questions in the 'scientific method blog'. Keep your responses serious and to the point. You do not need to put your name on the blog. Look at other peoples responses as you blog and see how your response compares to theirs. We will discuss some of the blogs as a class while you work. Use internet sources we discuss in class but be sure to put things in your own words.
a. What is an independent variable?
b. What is a dependent variable?
c. Write a hypothesis and underline the independent variable and bold the dependent variable.
d. When setting up a graph, where does the independent variable go? Where does the dependent variable go?
mass
volume
extensive property
intensive property
substance
physical property
solid
liquid
gas
2.) Describe some similarities and differences between gasses, liquids, and solids. Draw a diagram that represents what solids, liquids, and gasses look like at an atomic level.
3.) Gallium is a substance that has a melting point of about 30 degrees C. What would you guess the physical state of this substance would be if you were holding it in your hand?
4. BLOG your response to the following questions in the 'scientific method blog'. Keep your responses serious and to the point. You do not need to put your name on the blog. Look at other peoples responses as you blog and see how your response compares to theirs. We will discuss some of the blogs as a class while you work. Use internet sources we discuss in class but be sure to put things in your own words.
a. What is an independent variable?
b. What is a dependent variable?
c. Write a hypothesis and underline the independent variable and bold the dependent variable.
d. When setting up a graph, where does the independent variable go? Where does the dependent variable go?
8.29.11 Mixtures
1.) Define the following terms
mixture
heterogeneous mixture
homogeneous mixture
solution
phase
filtration
distillation
2. Go to this this website http://glossary.periodni.com/glossary.php?en=distillation. Draw the distillation apparatus and label as many of the components as you can. Make a key to the side of your drawing that describes the function of each of the components. Draw this on a separate sheet of paper and turn it in. This drawing will be graded on neatness, how well you identify various parts of the apparatus, and how well you have described the function of the components.
3. Go to this website http://www.roaste.com/CafeRoaste/CoffeeGuides/French-Press-Enter-the-World-of-Gourmet-Coffee. Draw the filtration apparatus and label as many of the components as you can. Make a key to the side of your drawing that describes the function of each of the components. Draw this on a separate sheet of paper and turn it in. This drawing will be graded on neatness, how well you identify various parts of the apparatus, and how well you have described the function of the components.
4. Compare and contrast the structure and function of each of the separation devices. In general, when would you use filtration to separate a mixture? When would you use distillation to separate a mixture?
5. Describe a procedure that could be used to separate a mixture of sand and table salt.
6. Write a paragraph explaining how concepts of filtration and distillation are relevant to the oil industry.
mixture
heterogeneous mixture
homogeneous mixture
solution
phase
filtration
distillation
2. Go to this this website http://glossary.periodni.com/glossary.php?en=distillation. Draw the distillation apparatus and label as many of the components as you can. Make a key to the side of your drawing that describes the function of each of the components. Draw this on a separate sheet of paper and turn it in. This drawing will be graded on neatness, how well you identify various parts of the apparatus, and how well you have described the function of the components.
3. Go to this website http://www.roaste.com/CafeRoaste/CoffeeGuides/French-Press-Enter-the-World-of-Gourmet-Coffee. Draw the filtration apparatus and label as many of the components as you can. Make a key to the side of your drawing that describes the function of each of the components. Draw this on a separate sheet of paper and turn it in. This drawing will be graded on neatness, how well you identify various parts of the apparatus, and how well you have described the function of the components.
4. Compare and contrast the structure and function of each of the separation devices. In general, when would you use filtration to separate a mixture? When would you use distillation to separate a mixture?
5. Describe a procedure that could be used to separate a mixture of sand and table salt.
6. Write a paragraph explaining how concepts of filtration and distillation are relevant to the oil industry.
9.6.11 Elements and Compounds / Chemical Reactions
1. Define the following terms
element
compound
chemical change
chemical symbol
periodic table
group
chemical property
chemical reaction
reactant
product
precipitate
law of conservation of mass
2. How is a compound different from an element?
3. How can you distinguish a substance from a mixture?
4. Classify the following samples as element, compound, or a mixture.
a. table sugar
b. tap water
c. cough syrup
d. nitrogen
5. Write the chemical symbol for each of the following elements
lead
silver
oxygen
sodium
hydrogen
aluminum
6. Name the chemical elements represented by the following symbols
C
Ca
K
Au
Fe
Cu
7. What elements make up the pain reliever acetaminophen? (hint... find the chemical formula first) Which element is present in the greatest proportion by number of particles?
8. How does a chemical change affect the composition of matter?
9. What are some clues that a chemical change has taken place?
10. What is the main difference between physical and chemical changes?
11. Classify the following as physical or chemical changes.
water boils
salt dissolves in water
milk turns sour
metal rusts
12. According to the law of conservation of mass, when is mass conserved?
13. Hydrogen and oxygen react to form water. How much water would form if 4.8 g of oxygen reacted with 38.4 g hydrogen?
element
compound
chemical change
chemical symbol
periodic table
group
chemical property
chemical reaction
reactant
product
precipitate
law of conservation of mass
2. How is a compound different from an element?
3. How can you distinguish a substance from a mixture?
4. Classify the following samples as element, compound, or a mixture.
a. table sugar
b. tap water
c. cough syrup
d. nitrogen
5. Write the chemical symbol for each of the following elements
lead
silver
oxygen
sodium
hydrogen
aluminum
6. Name the chemical elements represented by the following symbols
C
Ca
K
Au
Fe
Cu
7. What elements make up the pain reliever acetaminophen? (hint... find the chemical formula first) Which element is present in the greatest proportion by number of particles?
8. How does a chemical change affect the composition of matter?
9. What are some clues that a chemical change has taken place?
10. What is the main difference between physical and chemical changes?
11. Classify the following as physical or chemical changes.
water boils
salt dissolves in water
milk turns sour
metal rusts
12. According to the law of conservation of mass, when is mass conserved?
13. Hydrogen and oxygen react to form water. How much water would form if 4.8 g of oxygen reacted with 38.4 g hydrogen?
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