POWER POINT: STOICHIOMETRY OF FLUIDS

Students: HERE are the Power Point Notes on 'Stoichiometry of Fluids' given in the first two weeks of Unit 4, the final unit of the Fall semester in Mr. Hatfield's Chemistry classes.   

This section of notes covers problems having to do with molar volumes of gases, limiting reactants and percent yield, molar concentrations and other properties of solutions.   A Study Guide based on these notes is available HERE in PDF form.

VIDEO: SOLUTIONS

Students can watch Paul Andersen's discussion of solutions and their properties as many times as needed here, on-line, in the video embedded below:




Students can also access the PDF version of the worksheet given in class, based on this video, HERE.

VIDEO: LIMITING REACTANTS and PERCENT YIELD

Students, here is the video shown in class on Tuesday and Wednesday to support mastery of the (titular) concepts:

SYLLABUS, UNIT 4: STOICHIOMETRY OF FLUIDS

Students, here is the Syllabus for the final unit of the Fall Semester:  Unit 4, 'Stoichiometry of Fluids'.  Give careful attention to the opportunities for support or extra credit!

UNIT TEST 3 (MAKEUPS)

Mr. Hatfield's Chemistry students tested on Wednesday, Nov. 13th.  Because Mr. Hatfield was unavailable the following Thursday due to his commitment working on the district's health care board, there may be students who still need to makeup their Unit 3 test before returning from Thanksgiving vacation.

If this applies to YOU, please contact Mr. Hatfield at his personal email (epigene13@hotmail.com) and request a personalized makeup exam.  Mr. Hatfield will reply via email with a makeup test attached as a PDF file.

VIDEO: STOICHIOMETRY

Students, as with 'The Mole', I am making this Paul Andersen video available through the class blog.   Please watch as many times as you need:


The worksheet based on this video is available online HERE:

POWER POINT NOTES: MOLES AND STOICHIOMETRY

Students, you can find the latest Power Point Notes on Chemical Quantities and Moles HERE:





And HERE is the second group of Power Point Notes for Unit 3:

https://www.mediafire.com/?hyumweo1v43a2t6

A Study Guide based on both sets of notes will be made available in Thursday's class, to assist students in preparing for next Friday's test.  You can download it as a PDF file here.

VIDEO: THE MOLE

Students:  here is Paul Anderson's video, as shown in Tuesday's class, explaining the concept of the mole with helpful illustrations:



Student should use this video to complete a worksheet given in class, which is also available online HERE.

SYLLABUS, UNIT 3: THE MOLE

OK, Students!  Halloween's right around the corner!  Then Veterans Day!  Then Thanksgiving!

There's going to be plenty of holidays, in fact. 

Which is why WE NEED TO GET OUR WORK IN, NOW.

With that said, this is a shorter Unit, and there's going to be work to do, every day.  (Even Saturday, if you are assigned Saturday School):

STUDY HALL STARTS THIS WEEK

We are now in the second quarter, and a certain percentage of students are not completing their work outside of class, or otherwise struggling to do well in the course.  As the above picture shows, more than half the semester (45 days) have gone by, and it is time to do something about these students, to provide them with academic support.

These students have been assigned Study Hall, at lunch.   Students were given official notice via School Messenger and also received a physical note in class on Monday, October 15th.

These students will be in Study Hall on Tuesday, Wednesday and Thursday until they have raised their grade in Chemistry to a passing grade. 

NOTE:  This Thursday, October 18th, is the student's next major Unit Test.   Have they completed their Study Guides and used them to make sure their Notes are complete?  Have they read Chapters 5-7 and answered all the Section Assessment questions for extra credit?  Are they completing their homework assignments?

POWER POINT: ELECTRON CONFIGURATION

Students, here is the Power Point for the second group of notes for Unit 2, on electron configuration, orbitals, models of the atom, and rules for electrons:

Students should use this along with the previous section of Notes to complete the Study Guide for next Thursday's test (10/18), and along the way make sure that everything in the Study Guide does, in fact, appear in their notes.

VIDEO: FLAME TEST LAB

If students were absent on the day we were guests in Mr. Fischer or Mr. Diaz's classroom, they did not get to see the actual lab where we performed a 'flame test' on various ionic compounds.   

Here is a video that shows much the same sort of observations students made on Wednesday or Thursday.   Unfortunately, it is not practical to 'make up' the lab, due to the work that still needs to be done to bring N-25 'up to speed'.   Watch the video, students, and compare it with observations that students who attended were able to make in order to understand the material:

VIDEO: THE BUNSEN BURNER

Mr. Hatfield has made a video to demonstrate the correct way to use the Bunsen burner.  Make sure you review this before you come to class on Monday, as we will be using the Bunsen burners in class to perform the flame test lab.

VIDEO: FIREWORKS!

Students who were in Mr. Hatfield's classes on Friday, Sept. 28th, watched a PBS video entitled 'Fireworks!'  Students who need to watch it again, or who were not present on Fruday, will find the video embedded below in this post.

The worksheet for this video can be obtained HERE.

Students should pay careful attention to items from Chapter 5 (electron configuration) and Chapter 7 (ionic compounds):

POWER POINT NOTES: PROPERTIES OF MATTER

Students: here are the Power Point Notes that covers material from Chapters 2 and 6.   You should use them along with the Study Guide 'Properties of Matter' (given in class on Monday, 9/25) to make sure that the notes in your Composition Book are complete. 

A second Power Point, with a separate set of notes based on chapters 5 and 7, will be provided later in the Unit. 

SYLLABUS: UNIT 2, PROPERTIES OF MATTER

Students:  Please find attached the new Syllabus for our current Unit, which is identical to the three-hole punched handout you should receive in class on Friday, September 21st.  We are currently finishing the fifth week of instruction.   If you have not done so, please read Chapters 5-7 in your textbook.

'COPING' WITH MR. HATFIELD'S TESTS

On Tuesday,  September 11th, Mr. Hatfield's students took their first test in Chemistry.  The first test can be thought of as a 'lesson' on what to do, and what not to do.  Until students see the test for themselves, and know what it is like, it's difficult to prepare for.  

So, many students will be disappointed and discouraged by their first exam, when it is returned in class TODAY.  But know this: if you learn from the experience, you will improve, and you will even get opportunities to improve your original grade.    

Students who earn a percentage score higher than that earned on the first test can not only expect to earn a higher grade, but they are eligible for grade change on their previous test.

To achieve that, students need to consider the following, using the anagram 'COPE'.

C....(ontent)

Students need to know what's on the test. 

To make sure that students know what content will be covered on the exam, they need to obtain and complete a copy of the Study Guide, which becomes available the weekend before the test.   At the same approximate time, Mr. Hatfield will make the notes and practice questions available on the class blog. The sooner the students develop the habit of comparing their Composition Book with these materials, the sooner they will improve!

O....(rganization)

Students need to plan their time. 

Students should consider forming Study Groups with fellow students, perhaps after school on the day before the exam. They earn points by attending, and get valuable feedback about what is likely to be covered.  Students need to consider using time on lunch or after-school on the day of their exam as needed to complete their test. Plan ahead, students!

P...(reparation)

Students need to provide evidence that they have prepared for the test. 

One way to do this is to attend Study Hall during lunch, before the next test. Another, powerful way is to make sure that they bring their COMPLETED NOTES  to class on the day of the exam. To aid Students in completing their Notes, Mr. Hatfield makes them available on-line through this blog and gives a Study Guide for Students to complete to demonstrate that they have the Notes, and know what to do with them.  Bring evidence that you have prepared for the test, students, and you will be rewarded!

E...(ffort)

Students need to finish what they start. 

There is nothing more important than giving our best effort, all of the time. On an exam day, a good effort means that students attempt everything, even if that means they need to come back at lunch or after school. Show a work ethic, students, and you will not only do better on the test....you will do better in every aspect of your life.

PARENTS, ENCOURAGE YOUR STUDENT TO USE THESE STRATEGIES TO EXCEL!


One way to improve O(rganization) and P(reparation)  is to use the SYLLABUS for each Unit.   With that in mind, here is the SYLLABUS (the schedule of major events) for Unit 2:

POWER POINT: INTRODUCTION TO CHEMISTRY

The first set of Notes in Mr. Hatfield's 2018-19 classes were made available on-line in September of 2018.  They have since been superseded by revised notes and are no longer available.

The topics of the notes include the relation of chemistry to mathematics and other sciences, what makes chemistry distinctive in terms of its content and practice, the nature of science, scientific method ("O.H.E.C.K."), atomic theory and the periodic table.

Students should download the Power Point Notes to make sure that their notes are complete, as from time to time their composition books containing their notes will be inspected and graded.

You can find that set of notes HERE.

VIDEO: 'THE LIVES OF THE STARS'

;

The following episode of Carl Sagan's Cosmos, 'The Lives of the Stars', forms the basis of a student homework assignment given in class on Friday, August 31.  



 

The entire episode is available for students to watch, as needed,  HERE: 
https://www.youtube.com/watch?v=xrmM51Kldv0

SYLLABUS, UNIT 1: INTRODUCTION TO CHEMISTRY

Students, here is the first of what will be many Unit Syllabi given you in this course.  A syllabus is simply a schedule of events and other important information for a course, and you will receive one for each Unit in Chemistry.

We will review this together in class, and you will receive a three-hole-punched hard copy.  Learn to use this to manage your time!

VIDEO: COSMIC VOYAGE

Chemistry students will be viewing a 36-minute IMAX video in class beginning on Friday, August 17th, and completing a worksheet based on part of the video. The film, 'Cosmic Voyage', was made in 1996 for the Smithsonian Institute and was clearly inspired by a classic science education film called 'Powers of Ten', originally produced in 1977 by the husband-and-wife team of Rae and Charles Eames.

'Cosmic Voyage' approaches the idea of using the metric system, which is based on powers of ten, to explore the question: "What is really large, and really small?" The film first zooms out from an acrobat's ring in St. Mark's Square in Venice, the place where Galileo first trained his telescope on the heavens.


Through 23 powers of ten, we leave first the Earth, then our solar system, then the Milky Way Galaxy behind, until we reach the limit of modern astronomy, where we can see images from about 13 billion years past.


Reversing course, the video then zooms in on drop of water in the Dutch town of Delft, where Antonie Van Leuuwenhoek first trained his early microscope to discover the hidden world of microbes.



As we zoom in on a paramecium, we penetrate its cell nucleus, then zoom in on a molecule of DNA.


Within that molecule is a carbon atom, and the world within that atom is mostly empty space! Within the atom, the atomic nucleus contains virtually all of an atom's mass, made of particles called protons and neutrons. These, in turn, are formed from even smaller particles called quarks.

The film continues with a discussion of the search for a fundamental theory in physics through the use of particle accelerators like Fermilab, along with an overview of the likely "recent" events that led to our sun, our solar system, the Earth and life itself.

Here, presented on YouTube, is the first segment (Chapter 1) of the film who wish to review the material or share it with others. As the narrator (Morgan Freeman) intones, 'we are all travelers on a voyage of discovery!' Chapter 2, and Chapter 3 can be assessed at YouTube directly or by clicking on the hyperlinks 

GENERAL CHEMISTRY LAB PROCEDURE, Part One

Welcome to Chemistry, at Bullard High School!  

This post outlines the general procedure that ALL Bullard High School Chemistry students are expected to follow in setting up and creating their Lab Reports.  This is a major part of your grade!

You must keep your laboratory work in a bound, quadrille-ruled journal (graph paper pages).  On the cover, print in ink your name, Chemistry 2018-2019, and the instructor’s name:

Reserve the FIRST TWO PAGES (both sides) for a table of contents, in which you will list the number, title, and pages of each experiment as you do it.  Number all pages in ink in the lower outside corner front side only.

Inside the FRONT cover, tape (or glue) the grading rubric by which your instructor will evaluate your journal:

Inside the BACK cover, tape (or glue) the laboratory safety rules: 

On the last few pages of your journal, tape (or glue) these instructions, the diagram showing common laboratory equipment and information for determining uncertainty in your measurements and calculations:

Students:

This is the FINAL set of Notes for the Spring semester!   The end is near, congratulations!

Your FINAL will be based on these notes, the (current) Chapter 25, and material from previously-taught chapters (17-24).

You can click on the image above or THIS LINK to download the notes.  

THERE IS ALSO A STUDY GUIDE BASED ON THESE NOTES, AVAILABLE ON-LINE HERE:

POWER POINT: CARBON, THE SHAPE OF LIFE

Students:

The first part of Unit 8 (Organic Chemistry) ends with a Unit Test on Wednesday, May 16th!

To help students prepare, please find the Power Point Notes HERE, along with a PDF of the Study Guide based on those notes HERE.

Students should also have a copy of the Organic Compounds Guide (three-hole punched) as part of their materials for Wednesday's Test.

FINAL SYLLABUS, SPRING 2018

This is the last syllabus of the year.   Unit 8 is divided up into two topics:  ORGANIC chemistry and NUCLEAR chemistry.

There will be a (non-calculation) "organic test" given in the second week.  This test must be made up before Memorial Day Weekend.  There is a comprehensive final for the spring semester in the final week.

ORGANIC CHEMISTRY VIDEOS

In Thursday's class, we talked about the difference between organic (based on carbon) and inorganic (based on some other element) molecules.   Life, of course, is based on organic molecules.

There are four major classes of carbon-based compounds used by living things:   carbohydrates, lipids, proteins and nucleic acids.

Each of these compounds is made of individual 'building blocks' called MONOMERS.   The monomers are linked together with covalent bonds to make large chains called POLYMERS, and the process of making polymers is referred to as POLYMERIZATION.

Here's a video from Bozeman Science, with animations, that gives some nice background on monomers and polymers:




Carbohydrates are carbon-based macromolecules based on C, H and O.  They are polar and readily dissolve in water.

A simple sugar by itself, like glucose, is termed a monosaccharide, and serves as a 'building block' (monomer) to build a larger chain of many molecules called a polymer. In the case of carbohydrates, the polymer made from many monosaccharides linked together by dehydration reactions is called a polysaccharide.

Examples of polysaccharides made of glucose include cellulose, glycogen and starch.   Each of these glucose polymers are biologically important. 




 Finally, here's yet another video by AP Chemistry teacher Paul Andersen, this on the class of macromolecules called PROTEINS.   



 PROTEINS often are used to build extremely useful and specific molecules called ENZYMES:


 

UNIT 7 TEST ON WEDNESDAY

Students:  Just a reminder that your Unit 7 Test is on Wednesday, May 2nd.  You should come to class with your completed Composition Book, and plan on taking advantage of additional time available at lunch and after school that date.

Composition Books will also be collected this week in order to assess grades on the three Labs in Unit 7.

On Tuesday and Thursday's classes this week, due to the testing schedule, our classes will begin new material on organic chemistry.  Students should prepare for this material by reading Chapter 22 as soon as possible, but please note that your Unit 7 test is largely based on Chapter 19, with some material from Chapters 20 and 21.  Nothing discussed on Tuesday's class will be on your exam the next day.

POWER POINT: ACIDS, BASES, SALTS

Mr.Hatfield's Chemistry students have completed their Notes on material from Chapter 19.   They can download a copy of the Power Point containing those Notes HERE:

Students received a Study Guide based upon this section of Notes in Monday's class, but beginning tomorrow the class will transition into new material, on electrochemistry (chapters 20-21 in the text).

VIDEO: OXIDATION REDUCTION REACTIONS

Tyler DeWitt has made a very handy, easy-to-understand video that uses the formation of an ionic compound (NaCl, sodium chloride) to illustrate the logic of oxidation-reduction reactions, sometimes called 'redox' reactions, as described in Chapter 20.

Tyler not only gives an example of oxidation numbers (20.2), but he also shows how to to use these numbers to describe 'half-reactions' (20.3)

While there is no worksheet based upon this video, this is highly-similar to how students will be introduced to these concepts in Lecture, and is worth repeated viewings:

VIDEO: ACID-BASE EQUILIBRIUM

Students were shown this video in today's class.   Paul Andersen demonstrates the centrality of water to most acid-base chemistry, and explains how to calculate equilibrium constants for acids (Ka) and bases (Kb), and how to express those as pKa's or pKb's:

SYLLABUS, UNIT 7

Students, here is the Syllabus for Unit 7, which focuses on acids, bases, salts, titrations and electochemistry.  Please note that there are three sections of the textbook to review, and three labs in this Unit.  On the day you receive this Syllabus in class, there will 45 days of instruction left in the semester:

NOTES: CHEMICAL KINETICS

Students, here are the Power Point Notes on Chemical Kinetics, which covers the concept of equilibrium and the rates of reaction.


The Study Guide will be made available in class on Monday, March 19th.  If you need to get another copy, you can download a PDF version of the Study Guide HERE.

YOUR UNIT 6 TEST ON THERMOCHEMISTRY AND KINETICS is on Wednesday, March 21st.   As always, extra time is available at LUNCH or AFTER-SCHOOL.

POWER POINT NOTES: THERMOCHEMISTRY

Students:

Here are the Power Point Notes for Unit 6:  Thermochemistry.  

In this you will find discussions of phase changes (again!),  heat transfer, the 1st and 2nd Laws of Thermodynamics, and problems to calculate energy (q) , specific heats and enthalpies of reaction:

Click here to download those notes.

VIDEO: ENTHALPY OF REACTIONS

The following video by Paul Anderson was introduced in class on Thursday, Feb. 23rd.   It helpfully reviews some of the information already given in lecture regarding heat and the enthalpy of reactions. It also features a very handy, step-by-step demonstration of how to apply Hess's Law (a SUBTLE and advanced topic) to calculate enthalpies.




Students have an assignment based on that video, which is available HERE as a PDF file.

SYLLABUS, UNIT 6: THERMOCHEMISTRY and KINETICS

Students, here is the new Syllabus for Unit 6, which began on the 13th.  Note that it includes a handful of items from the previous unit,and has not one, but two Study Guides reflecting two different sections of notes:

POWER POINT: KINETIC THEORY OF GASES

Here are Power Point Notes from Chapters 13-14:

VIDEO: GASES

Paul Anderson helps us out again.   This video has a great set of demonstrations using a set of interactive animations.   Students are expected to complete a worksheet based on this video:







 The simulation that Mr. Anderson uses in the video can be accessed online, at the University of Colorado, HERE:

Click to Run

POWER POINT: PRESSURE AND TEMPERATURE CONVERSIONS

Students:  here is the (brief) Power Point containing information about the physical basis of temperature and pressure in the metric system, and how to convert units related to the same:

VIDEO: TEMPERATURE

As we begin our notes on the 'Kinetic Theory of Gases', it is important to realize that the random, dynamic motion of a very large set of tiny (sub-MICROSCOPIC) particles produces the phenomena we can observe at our own, relatively large (MACROSCOPIC) scale, like pressure and temperature.

Paul Anderson demonstrates this in the following video.  Students will receive an accompanying worksheet based upon it!

SPRING 2018 SEMESTER BEGINS!

WELCOME BACK!

Students in Mr. Hatfield's Chemistry classes will be spending much of the first week of the Spring 2018 semester completing a four-part packet of handouts which reviews math routines taught and rehearsed in the Fall semester.  

On ATLAS, this packet will display as four separate classwork assignments: Molar Mass, Two-Step Problems, Three-Step Problems and Stoichiometry 1.   Each is worth 20 points, but they are shown on the Syllabus below as a single (80-point) assignment:

Students should've also begun answering the Section Assessment Questions from Chapter 13, and beginning on Tuesday of the second week, begun to absorb new material on kinetic molecular theory and gas laws.