Q1 : Week 6 – 10/9 – 10/13
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Please Make sure Your read all instructions for all assignments.
LAB 3 – Electrolysis of copper (II) Chloride is Late!
_________________________________________ 10/9 – Monday – Columbus Day – “Indigenous People Day”
Columbus discovered America? But he only made landfall in the Bahamas and Cuba? Wait didn’t the Vikings make the voyage before he did? Wait the Chinese mapped out the America’s 70 years before the Viking voyage? Wait, didn’t native american Indian’s “discover” the America’s first? Wait wasn’t the America’s already here?
Jump to: Tuesday Homework / top
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10/10 – Tuesday – A Day – 2/3a Lab, 4
Period 2 ,4 –
Period 3a –
Alloy Presentation for class lesson:
1: Alloy introduction video : Stop at 23:00 (alloy lecture part)
Objectives:
1. Calculate the Thickness of an aluminum and copper foil (thin piece of metal).
2. Determine the number of atoms high a copper foil and aluminum foil are using volume, density and unit cell calculations.
The metal foil lab activity is not a formal writeup but please complete it as per the procedure in the handout that I gave. A piece of paper with your work neatly written with units and sig figs showing all calculations will suffice.
Discussed the volume unit relatives cm3 = ml and the conversions of m3 to cm3metric prefixes:
K H D [ ] d c m —–> micro, nano, pico
Thin Foil Lab Instructions:
______________________________________________________ Jump to: top 10/10 – Tuesday Homework: –
Electrolysis quiz Review Video is posted below:
4: Unit Cell and alloys
Textbook: 10.6 – Lattice Structures
Basics of interstitial and substitutional alloys, calculations using density, lattice constant and atomic radii with FCC or BCC. Conversions, and use of Avogadros number.
View Download
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Crystalline unit cell problems key p.pdf
View Download
Blank Quiz | Quiz Key |
Voltaic Cell quiz 1.pdf View Download |
Voltaic Cell quiz 1 key.pdf View Download |
Voltaic Cell Quiz 2 – 22-23.pdf View Download |
Voltaic Cell Quiz 2 – 22-23 KEY.pdf
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Electrolytic cell quiz .pdf View Download |
Electrolytic cell quiz key p.pdf
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Electrolysis of quiz review:
Jump to: Wednesday Homework / top ______________________________________________ 10/11 – Wednesday – B Day – 2, 3b/4 Lab
1. Complete Test 1 –
Period 3b –
1. Lab 4 Continues
2. Complete Test 1 –
_______________________________________________________ Jump to: top 10/11 – Wednesday Homework: –
1: Re-Study for TEST 1 – version 2
IF you do not know how to do something today you should to review the skill from the previous resources posted.
Jump to: Thursday Homework /top
__________________________________________________________ 10/12 – Thursday – A Day – 2/3a Lab, 4
b) Test 1 (second version)- Voltaic/Electrolytic Cells/Cubic cell calculations/alloys
Period 2,4 –
1. Test 1 – Version 1 hand back and Review / Students that were out yesterday will take in Library
mean = 80.25
sd = 12.1
Period 4 –
1. Lab 4 – Metal Foils Lab continues OR Mole concept and particle theory begins in class 1 –
1) G(r)eeks to John Dalton
2) Seeing atoms – Scanning Tunneling Electron Microscopy – (pizo electric crystal)
Richard Feynman said in Volume One of his Lectures on Physics:
If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generation of creatures, what statement would contain the most information in the fewest words? I believe it is the atomic hypothesis that all things are made of atoms — little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another.
Objectives:
1. Calculate the Thickness of an aluminum and copper foil (thin piece of metal).
2. Determine the number of atoms high a copper foil and aluminum foil are using volume, density and unit cell calculations.
The metal foil lab activity is not a formal writeup but please complete it as per the procedure in the handout that I gave. A piece of paper with your work neatly written with units and sig figs showing all calculations will suffice.
Discussed the volume unit relatives cm3 = ml and the conversions of m3 to cm3metric prefixes:
K H D [ ] d c m —–> micro, nano, pico
Thin Foil Lab Instructions:
____________________________________________________ Jump to: top 10/12 – Thursday Homework: –
1. Review For Test 1 (second version tomorrow). I have the a blank test and a key of the exam below:
I will also unlock the video below so that you can review the test.
2. Mole Concept/particle theory Officially begins: – This Form is Due Tomorrow.
B) Please fill the form below based on the lecture:
3. Complete the form below using the VERY Cool Mole videos below –
THIS FORM IS DUE MONDAY 10/16
Today’s Review of Test 1 – version 1:
AP Chemistry – Electrochemistry and Unit Cell Test Review – 22-23 AP Chemistry – Electrochemistry Test – Review 1819 – another video review
1a: MIT lecture Video :
1b: MIT lecture Form:
2: Mole Concept video playlist for form below:
Click on the upper left corner graphic that has the arrow to select the video you need.
____________________________________________________________________ Jump to: Friday Homework/top 10/13 – Friday – B Day – 2, 3b/4 Lab
Main focus –
1. Retake TEST 1 – (version 2)
Period 4 –
1. Lab 4 – Metal Foil Lab – complete
Objectives:
1. Calculate the Thickness of an aluminum and copper foil (thin piece of metal).
2. Determine the number of atoms high a copper foil and aluminum foil are using volume, density and unit cell calculations.
The metal foil lab activity is not a formal writeup but please complete it as per the procedure in the handout that I gave. A piece of paper with your work neatly written with units and sig figs showing all calculations will suffice.
Discussed the volume unit relatives cm3 = ml and the conversions of m3 to cm3metric prefixes:
K H D [ ] d c m —–> micro, nano, pico
Thin Foil Lab Instructions:
__________________________________________________ Jump to: top 10/13 – Friday’s Homework: –
1. Re-write conclusions for Lab 1 and or Lab 3.
I handed back Lab 1 (graded) and Lab 3 (non-graded) to you in class today. IF YOU LOST POINTS ON YOUR CONCLUSION you may re-write it. Type and print it and staple it to your existing labs. Please use my comments on your graded lab 1 as your guide. If you think lab 3 conclusion needs to be edited please REDO Lab 3 or look it over based on how I graded lab 1. Some of you are new to me in how I grade labs, especially Lab Conclusions.
Basic Lab Conclusion Guidelines:
The first paragraph – (Analysis of your objectives) – or section of your lab must parallel with your objectives. In your objectives you told me what you were going to accomplish and now you must tell me what you actually found. If you set out to do something and did not then points will be lost. In this section you must write what you did according to your objectives. For instance in the 1st lab, we determined the experimental voltage of the Gerber cell and determines the accuracy of your results (percent error). I want you to write what you obtained for these 2 objectives. DO NOT WRITE A PROCEDURE ON HOW YOU DID THIS! This really a results section which summarizing the most pertinent data that you collected. This is half of your conclusion.
In the second paragraph – (Error analysis) – of the conclusion, you must evaluate your experimental data through error analysis. This requires thought and logical comments that supports your outcomes. In the first lab you have a LARGE negative percent error and thus you need to list and explain errors that caused your experimental value to be under the theoretical value. In this section you will use your numbers obtained experimentally to be your guide. You will describe all errors and tie them to your results. YOU NEED TO EXPLAIN HOW YOUR MEASURED VALUES ACTUALLY LED TO a lower value than the standard as was the case in Lab 1. Be logical and concise. You will only lose points if your explanation is not logical or if YOU ARE VAGUE!!! This is analytical writing and thus no statements like, “I feel” or “I believe” should be used.
2. Please view the Mole Concept Lecture below:
3. Please complete the Mole Concept lecture Form below:
4. Please Mole concept video form (posted under Thursday).
Particle / Mole Theory Presentation (used in video lecture below):
2 : Mole and Particle Concept Lecture :
END OF WEEK 6!