Assignment Overview
STOP!!! BE SURE THAT YOU HAVE READ THE BACKGROUND CHAPTERS AND VIEWED THE VIDEO LECTURES PROVIDED ON THE HOME PAGE! These lectures contain the background material necessary to complete the following laboratory exercises.
Now to review the concepts before beginning your laboratory simulations, work through each of the following tutorials on bonding:
Covalent bonding I H, O, C, H2O
Covalent nonpolar bonds
Polar covalent bonds
Water and hydrogen bonding
Hydrogen Bonding III DNA and protein
Ionic bond
Water solvent, polar, properties, pH
To complete your Case 1 Assignment, use the links provided for each lab and follow the instructions provided. You will document your lab and discuss your observations by compiling your work as a Power Point presentation. Take screen shots as indicated in each set of instructions below. Paste your screen shots onto PowerPoint slides. Use the notes sections of the PowerPoint slides to describe the image you have placed on the slide, and to explain the results of each simulation or answer to specific questions. Include the Lab Title in the title section of each slide to organize your work. Include a Table of Contents slide at the beginning, and Conclusion and References slides at the end.
Lab 1: Build an Atom
https://phet.colorado.edu/sims/html/build-an-atom/latest/build-an-atom_en.html
Build a Hydrogen, Carbon, Nitrogen, and Oxygen atom.
Play each game: 1 4
Take screen shots of each element you build and the results of each game after you have played it. Explain what each screen shot depicts and include any points of interest that you learned from the games and/or lectures.
Lab 2: Acids and Bases
https://phet.colorado.edu/sims/html/acid-base-solutions/latest/acid-base-solutions_en.html
Begin with the following settings:
Solution: Water H2O
Views: Molecules
Insert the pH meter and record the results. Take a screenshot and use it as your image on your slide. In the notes section describe the proportion of H3O+ icons to OH- icons.
Repeat for each solution for Strong Acid, Weak Acid, Strong Base, and Weak Base
Be sure to report the pH and describe the proportion of H3O+ icons to OH- icons for each.
Now for Water, select Graph. Define equilibrium constant. Describe the differences in the graph for Water, Strong Acid, and Strong Base and what they mean.
Now make your own solution, using the My Solution simulation. Choose an initial concentration, report its mol/L and pH. Now make your solution stronger and weaker. Describe the changes that you observe in the concentration of each type of molecule highlighted by the magnifying glass.
Lab 3: Solutes and Concentrations
Summary Slides:
Now that you are an expert at atomic arrangement, the periodic table, and solutions, summarize the relationship between concentration, pH, and water. Where in the body is concentration of ions important? Where in the body is acidity important?
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Added on 13.05.2016 00:38
Lab 3: Solutes and Concentrations
https://phet.colorado.edu/sims/html/concentration/latest/concentration_en.html
Add each solute to the water to make solutions of varying concentrations. Which solution became saturated the most quickly? Why? Include 2-3 screenshots of your simulations.
Summary Slides:
Now that you are an expert at atomic arrangement, the periodic table, and solutions, summarize the relationship between concentration, pH, and water. Where in the body is concentration of ions important? Where in the body is acidity important? Include the references you used to research these topics. (HINT: Topic 52 pH Homeostasis in Pain Free Biochemistry is a good place to begin)
Assignment Expectations
You will compile approximately 20-25 slides to document your completion of these exercises. Use the links provided and take screen shots as indicated in each set of instructions for each lab. Include the Lab Title in the title section of each slide to organize your work. Paste your screen shots onto PowerPoint slides. Use the notes sections of the PowerPoint slides to describe the image you have placed on the slide, and to explain the results of each simulation or answer to specific questions. Include a Table of Contents slide at the beginning, and Conclusion and References slides at the end.
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