Ch. 14 Notes
https://www.mysafetysign.com/bio/biohazard_symbol.aspx
*Summarize this article using at least 5 bullet points (Random HW Collection - 12 pts)
*Draw a picture of the biohazard symbol below your bullet points
The History of the Biohazard Symbol (Video, 7:03)
LD50 Group Project (2 periods)
40 points
Snake Venom's Effect on the Body (Video, 7:20)
https://www.youtube.com/watch?v=Q87UkykCbvI&list=PLpsLBretBbJvDDrKEgREm-dfPHucUlfvQ&index=78&t=0s
How to Survive a Snake Bite (Video, 5:20)
https://www.youtube.com/watch?v=APd63Pv5CzM&list=PLpsLBretBbJvDDrKEgREm-dfPHucUlfvQ&index=79&t=0s
How To Make Antivenom (Video, 4:35)
https://www.youtube.com/watch?v=0yqVow4J4oA&list=PLpsLBretBbJvDDrKEgREm-dfPHucUlfvQ&index=80&t=0s
These notes (above) will be printed for you.
Significant Figures Explained/Extra Practice (Prof. Dave, 3:38)
https://www.youtube.com/watch?v=Gn97hpEkTiM
Significant Figures (Enrichment) (Crash Course, 11:23)
Quizlets
https://quizlet.com/489262969/significant-figures-flash-cards/ (sig fig basics)
https://quizlet.com/_83pwnf?x=1qqt&i=24ghcu (scientific notation)
https://quizlet.com/35792827/flashcards (sig fig operations)
Other
https://www.sporcle.com/games/starwars314159/sigdigs (sig fig basics)
https://www.khanacademy.org/math/arithmetic-home/arith-review-decimals/arithmetic-significant-figures-tutorial/e/significant_figures_1 (overall quiz)
http://ths.sps.lane.edu/chemweb/unit1/problems/significantfigures/ (overall quiz)
http://www.mrwiggersci.com/chem/Tutorials/Ch2-Pract-Sig-Figs-in-Operations-Blacksburg.htm (overall quiz)
Metric System History (Video, 5:07)
https://www.youtube.com/watch?v=7bUVjJWA6Vw
Metric Conversions Practice
https://www.thoughtco.com/metric-to-metric-conversions-quiz-4052360
These notes (above) will be printed for you.
Tranquilizing a Lion to Perform Surgery (Video, 3:30)
Dosage Calculations 2 (Stand-In Assignment; Group Work Permitted; Random HW Collection)
1. Research a medicine. Provide its generic name as well as a commercial name.
Ex. Aspirin (generic), Bayer (commercial)
2. Briefly describe which illnesses/symptoms that this is used for. Also describe some negative side effects of using the drug.
3. Provide its LD50 in milligrams per kilogram AND micrograms per kilogram
Ex. LD50 = 200 mg/kg = 200,000 μg/kg
4. Generate a LD50 calculation problem dealing with this medicine. Also show the work/correct answer to it.
5. Generate a dosage calculation problem dealing with this medicine. Also show the work/correct answer to it. You may either make up a dosage or use a realistic one for the medicine (in grams per milliliter).
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Ch. 14 Quiz - includes (but is not limited to) Significant Figures, Lesson 74, Metric Conversions, and Medically Relevant Calculations
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Counting By Weighing, Percent Error Activity #1 (20 pts total)
*Group submissions are permitted, but do not use personal pronouns.
*You are not required to stand/wear goggles.
*If you are using a balance to measure an edible sample, realize that toxic chemicals are measured on them regularly. Wiping the weighing tray down and/or using a barrier is recommended.
The following data needs to be placed into a data table OR a setup where you are showing all work. Include information for both of your samples. (10 pts)
Procedure
Counting By Weighing
1. Approximate the total mass of the “pile” (find a way to ignore the container weight).
2. Approximate the mass of one item.
3. Use CBW to approximate the number of items in the group.
Percent Error
4. Determine the actual number of items in the pile.
5. Calculate your percent error from #3.
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6. Repeat steps 1-5 for your second sample.
Follow-Up Questions (10 pts)
*Answer in complete sentences.
1. Briefly describe your method(s) of determining the masses of the piles. (1 pt)
2. Analyze your percent errors in the following sections.
a. Were each of your percent errors positive or negative? What does these indicate about each of your measured values? (4 pts)
b. Were each of your percent errors small, medium, or large? What does this indicate about the accuracy of each of your measurements? (4 pts)
3. As percent error moves further away from zero, the accuracy of a measurement ___________________________. (recopy this statement with your answer; 1 pt)
Counting by Weighing Activity #2
*You do not need to recopy questions.
*Number your answers and use complete sentences when responding.
*Do not use personal pronouns in any responses.
15 min
1)Determine an approximate mass of the item(s) shown (go to 2 decimal places, in grams). No sentences are needed for this response. (1 pt)
2)Briefly describe your method of mass approximation. (2 pts)
3)Compare and contrast this to counting by weighing (at least 1 similarity and 1 difference). (2 pts)
_________________________________________________________________________________________________________________________________
Remainder of Class
4)Calculate the percent error of your approximation. No sentences are needed for this response. (2 pts)
5)Provide 1 way to improve your approximation (under the exact same conditions). (3 pts)
How big is a mole? (video, 4:32)
https://www.youtube.com/watch?v=TEl4jeETVmg
GMA Conversions Calculator
http://www.rsimons.org/ahs/moles
*This calculator only works for monatomic elements. This will NOT work for diatomic elements (hydrogen, bromine, oxygen, fluorine, iodine, nitrogen, and chlorine).
The following 3 assignments are due by the end of class on the day they are assigned.
Assignment #1 (https://www.visionlearning.com/en/library/Chemistry/1/The-Mole-and-Atomic-Mass/53/reading)
1. Go over the "Reading" section (read and answer comprehension checkpoints).
2. Scroll back to the top of the page and click on the "Quiz" section. Call the instructor over once complete.
Passing Score = 8/10
Gradebook Reporting:
*Passing Score = 5/5 (grade)
*No Passing Score/Attempt Made = 2.5/5 (grade)
*No Passing Score/No Attempt Made = 0/5 (grade)
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1. You may need to sign in with Google in order to complete this assignment. Call the instructor over once complete.
Passing Score = 8/10
Gradebook Reporting:
*Passing Score = 5/5 (grade)
*No Passing Score/Attempt Made = 2.5/5 (grade)
*No Passing Score/No Attempt Made = 0/5 (grade)
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Assignment #3 (https://www.proprofs.com/quiz-school/quizshow.php?title=calculating-molar-mass&q=1)
1. Masses may be off by a couple decimal places (due to the website using a different periodic table from yours). If this is the case, choose the answer that is closest in proximity to the mass that you have calculated. Call the instructor over once complete.
*If you need a tutorial on how to find the formula mass of a compound, watch the following video as needed (you must use headphones - do not play the video through the speakers): https://www.youtube.com/watch?v=Qflq48Foh2w.
Passing Score = 4/5
Gradebook Reporting:
*Passing Score = 5/5 (grade)
*No Passing Score/Attempt Made = 2.5/5 (grade)
*No Passing Score/No Attempt Made = 0/5 (grade)
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Ch. 14 Exam - includes (but is not limited to) Significant Figures, Lesson 74, Metric Conversions, Medically Relevant Calculations, and Lessons 75-78
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