Review your notes, labs and practice on ICE boxes and LeChatlier's principle to complete questions 39 and 41 (page 616, answers in back of book, but show your ICE Boxes and your work) and questions 60 and 62 (page 617-618).

Review your notes from class Friday and today to complete questions (17,22,33) on pages 614-615.  Show your work for the calculation questions.

Complete the chemistry review guide on Kinetics.  Concepts from this sheet do appear on the final, but remember that these are just the foundational concepts; in honors chemistry we have gone deeper with instantaneous rates of reaction, reaction mechanisms and determining rate laws using initial rate data as well.

The Haber Process is one of the most important manipulations of an equilibrium reaction system in industry today.  Read and summarize the attached article on "energy changes and reversible reactions."  Note that the reading is three pages; you have to click through the pages to advance.

 

Read and summarize the two attached articles from Chemmatters magazine that further investigate chemical equilibrium and its applications.

As I must be out for two days, we'll move on to an introduction of chemical equilibrium concepts in class.  When I return, we'll finish up important aspects of reaction kinetics.  The attached article provides an introduction to chemical equilibrium and some practical real world applications. For HW, read and summarize the article.

 

Review the attached Khan Academy video on determining rate laws and "k" values for a reaction using initial rate data.  Summarize your findings from the video.

 

Research online and summarize your findings about catalysts and how they function to increase reaction rate as well as real world applications of catalysts.  Also, research and summarize about biological catalysts (enzymes) as well as biological molecules that affect reaction rate in a negative way (inhibitors).

Watch the Khan Academy video attached here that introduces you to reaction mechanisms and how they relate to the rate law, and take notes or summarize the lesson.  We briefly touched on the concept of mechanisms in class and will cover them more thoroughly.  If you are taking an AP exam on Thursday, you need not do this assignment until Friday.

 

Review sections 12.1 and 12.2 in your textbook and complete questions 19-21 on page 567.  Also look at question 31 on page 569.  Don't answer the question as written, but instead, graph the data (concentration vs. time). Then, as we did in class, sketch a tangent line and determine the instantaneous rate (negative of the slope) at time zero and also at 1600 seconds.

In class we will begin looking at reaction rates quantitatively on Tuesday.  As a preview to this, read and summarize sections 12.3 and 12.4 from your textbook including sample exercise 12.1

We are beginning a study of reaction kinetics (rates of chemical reactions) and equilibrium (reversibility of chemical reactions).  As an introduction, read and summarize sections 12.1 and 12.2 in your textbook.

Quiz precipitation reactions

finish reading and writing your responses to the questions about the chemistry of the statue of liberty.  Include in your writing an explanation of the blue green oxidation product on the surface of the statue.  The reading along with the attached video will give you some ideas

Read and summarize section 17.2 from your textbook on the concept of galvanic cells and the potential for substances to be reduced wile others are oxidized.  These concepts are fundamental to today's lab.

Study for the parallel quiz on acid-base and acid-carbonate reactions.

We are currently moving through a study of reactions that form solid precipitates in solution.  Read and summarize sections 15.6 and 15.7 that introduce you to the equilibria of precipitation reactions.  Note that this is just an introduction; we'll cover equilibrium later.  Do not worry about the quantitative examples at this time.

Do online research on the town of Hinkley, California and their exposure to hexavalent chromium ions in the ground water.
Write a summary indicating who was responsible, how and why; and what the affects of exposure had on the people, as well as how the problem of the chromium was addressed and dealt with.

Review your notes from today and chapter 4.1 thru 4.6 to complete questions 39-42 on pages 172-173 from your text

Quiz - Stoichiometry of acid-base neutralization reactions and acid-carbonate reactions, including using the ideal gas law for carbon dioxide gas

Tonight study your notes and practice for the Quiz on Acid/Base neutralization reactions and Acid/Carbonate reactions

Note that the Quiz acids/bases/carbonates/carbon dioxide gas is moved to tomorrow, Tuesday. 

For HW tonight, refer to section 4.5 and the Table 4.1 (pg 144) to complete questions (35-38 a-d) page 172.

Following the upcoming quiz on Monday, we will be looking at precipitation reactions: those that form solids in solution.  As an intro to this topic read and summarize sections 4.5 through 4.7 in your textbook including figures 4.14, 4.15, 4.17 and sample exercises 4.8 through 4.11.

Review Chapter 4 of your textbook on Chemical Reactions and Stoichiometry in Solution, and complete the Active Learning Questions (1-8) on pages 170-171 of the textbook

Research effects of carbon dioxide from  fossil fuels on the oceans and write a summary that extends beyond that which we did in class with our video

Today in lab we carried out  titration and you began a volumetric analysis of the data gathered.  Below are three good short articles on applications of volumetric analysis.  Read the articles and write a summary of volumetric analysis and its practical applications

 

 

 

We are beginning a study on acids and bases and their reactions. So far you have read section 4.8 on simple neutralization reactions.  For HW today, read and summarize sections 14.1 through 14.4 on the dissociation of acids, acid strength and measuring acidity by pH.  We will be covering these concepts Monday and Tuesday.

Parallel Quiz for Carnival of Knowledge today

Study for your Carnival of Knowledge Parallel Quiz

Review section 4.8 from your text and our notes from class today to complete questions 55 and 56 on page 173.

Also, look over the practice questions for the parallel assessment that I wrote with you in class today.

Read and summarize section 4.8 on acid-base reactions (which we will introduce in class Wednesday).  Also, copy the problems and solutions for sample exercises 4.12 through 4.15.

The H Chem spring break assignment is to carryout a lab at home that serves as an introduction to acids, bases, pH and acid-base indicators.  You are asked to prepare a data table and write a one-page discussion on your research and findings.  There is also an extra credit opportunity included.  The assignment is due Tuesday April 3rd when we return from spring break.  See the attached file for guidelines.

 

 

Open the pHET link attached on the Beer's Law Simulation.  If you can't open it, then do as we do in class and go to the pHET website to get to the simulation.  

 

If you need guidance along the way, refer to your pHET simulation class notes from last Thursday. 

 

Last week you prepared a stock 0.250 M copper (II) sulfate solution, and today in lab we carried out serial dilutions of the stock solution.  As practice in preparing and diluting solutions complete questions 29, 30, and 34 from page 172 in your textbook.

Research online real life applications of understanding about solution composition.  Write a summary of your findings.  Attached is one possible source

 

The chemical reactions we are studying now involve the oxidizing of a metal by another species like hydrogen from an acid or another metal ion.  For HW, read and summarize section 17.1 from your text that describes how the movement of electrons in these reactions is carried through an electrochemical cell.

HW is to study for the quiz.  I've attached the practice questions from class as well as some additional gas theory and law questions for you to review.  Be sure you can complete all questions to be prepared for the quiz.  Note on question 4 from today: use the ideal gas law to calculate the moles of the unknown gas.  Then divide the given mass by that number of moles to get your molar mass. Then compare against the three possible choices to find your answer.

This week we started to learn about reactions that occur in solution and solution concentration.  Spectrophotometry is an analytical lab technique to determine the concentration of colored solutions based on measurements of light transmitted through them. Watch the Khan Academy link below on spectrophotometry and write a summary for homework.  We will be using spectrophotometry in lab early next week.

 

Review your brief notes from today on molarity and section 4.3 on the composition of solutions (including sample exercises 4.1, 4.2, 4.3 and 4.4).  Complete questions 21-25 (a and b only for questions with multiple parts) on page 171-172.

Today we studied and experimented with the oxidation of a metal by the hydrogen ion of an acid. As a follow-up to this, read and summarize section 4.9 and complete questions 71-72 (page 174).

Tonight's HW is based on your conceptual understanding of gas behavior.  Review your notes and chapter 5 to complete the active learning questions 4-10 on pages 217-218.

Read and summarize the two articles on real world applications of gas laws

 

 

For HW tonight, read and summarize 5.6 and 5.7 from your textbook.. These take a deeper look into gas behavior at the molecular level

The articles included here present applications to our study of gas behavior.  Read and summarize the two articles that relate gas behavior and change of state between gas and liquids to atmospheric science.  The links are included below

 

 

My apologies, I did not look over 1-6 carefully the other day.  Only the first two were straight gas to gas problems where moles and liters are directly related.  From today's work, you now have the experience to handle the remaining problems.  For HW, work on 5-8 from the handout.  Use the ideal gas law PV=nRT to change from liters to moles or vice versa.  STP is 1 atm and 0 celsius.

Review section 5.4 from your text on gas stoichiometry and your notes to complete questions 1-6 from the attached file (note that the questions require you to write balanced equations).  Also, note that when your are working with gases at STP in chemical reactions, you can think of the coefficients in the equation as liters of gas instead of moles.  Yes it works (only for gases)

Follow the Chem Academy link below that does a good job of showing how we handle the stoichiometry of reactions involving gases that we collect over water.  For HW, write the examples and show how they are worked out.  Come to class ready to ask questions about the concepts that were not made clear to you.

 

Research ethanol as a biofuel online and write a summary that includes how its prepared, benefits, drawbacks, and how it compares in general to fossil fuels as an energy source.

Read and summarize sections 5.4 and 5.5 from your textbook and copy the sample exercises 5.11 through 5.16 on pages 190-197 (just the questions and the mathematical solutions).

As we continue our study of conservation of matter and calculations involving chemical changes, we will be looking into how we characterize gases involved in chemical changes.  For HW, read and summarize sections 5.1 through 5.3 in your textbook and complete questions 16-22 on page 218.

Quiz today

Honors chem also includes determining limiting reactants and percentages if we cover it by Thursday

Follow these two links to Khan Academy as they go over how to handle limiting reactant problems.  Take notes and turn them in for HW. Note that they may use a different method.  You may use any method that works best for you when it comes to our class.  If you can't open the links, then just do a you tube search for Khan Academy limiting reactants.

 

 

Read and summarize sections 3.9 and 3.10 from your textbook and copy sample exercise 3.18 (page 110) and sample exercise 3.19 (page 111-112).  Be sure to copy their method for solving the sample exercises.

As an extension of the concepts used in last night's homework, complete questions 92-96 on page 121 of your textbook.  Note that 1 kg = 1000 grams.  Also note that some of the questions indicate that only a percentage of the sample actual reacts.  This is common in reactions that occur in our real world.

Review your notes and the text and complete questions 85, 86, 89, 90, 91 on pages 120-121 from your textbook.  Show your work.

Read section 3.7 from your text and refer to your notes to complete questions 81-84 on page 120

Review section 4.1 and 4.2 from your textbook and complete questions 17-20 on page 171

Homework is to study for the quiz (empirical and molecular formulas and empirical formula for a hydrated salt).  The quiz will also include questions about uncontrolled lab errors and how they would affect the final result.  Look over your practice from Wednesday and Thursday.

Homework tonight is to study empirical formulas for hydrates and empirical and molecular formulas for covalent compounds.  No combustion analysis on Friday's quiz

We are moving from composition of matter to changes in composition (chemical reactions).  For homework, read ans summarize sections 3.7, 3.8, 4.1 and 4.2 from your text.

The homework tonight is based on determining the composition (empirical formulas) for hydrates, which was also the objective of today's lab.  Refer to your notes from Friday to complete questions 49 and 50  from the attached file (from Brown and LeMay textbook). 

Do an online research of "Hydrated salts."  Write a summary that characterizes hydrated salts.  Then do an online search of "Hydrated salts on Mars," and include in your summary what we know about this topic based on recent NASA findings.

This is the homework from over the weekend now due: Review your notes from today on combustion analysis and section 3.6 from your textbook to complete questions 77-80 on page 120. All four questions are combustion analyses. Note that 77 contains no oxygen, 78 has nitrogen instead of oxygen, 79 contains no oxygen, and 80 contains carbon, hydrogen, and oxygen.

The homework from the weekend is now due Thursday.  For tonight, do an online research of the technique of combustion analysis: its history, uses, how it has evolved, and include a description of the technique of gas chromatography and how it is used in modern combustion analysis.

Review your notes from today on combustion analysis and section 3.6 from your textbook to complete questions 77-80 on page 120.  All four questions are combustion analyses.  Note that 77 contains no oxygen, 78 has nitrogen instead of oxygen, 79 contains no oxygen, and 80 contains carbon, hydrogen, and oxygen.

Review your practice from class on % composition, empirical and molecular formulas and complete questions 65,68,69,70,73,74 on pg 119-120

Read and summarize section 3.6 from your text and copy the sample exercises (3.11, 3.12, and 3.13) into your homework.  We'll cover empirical and molecular formula determination in class Thursday.