CHEMISTRY B Assignments
- Instructor
- Danielle Ramirez
- Term
- Spring 2015
- Department
- Science
- Description
-
Upcoming Assignments
No upcoming assignments.
Past Assignments
Due:
Assignment
Ch 16 Worksheet Make-up
Go to the following and review the lesson.
Use the arrows on the top to progress through the pages titled:
- Definition of pH, pOH, "p", sample calculations
- Calculations of pH using a number line scale or calculator
Answer the following on a separate paper:
- If you know the concentration of [H+] of a solution in decimal form, explain how you can figure out its pH.
- As the value of the pH increases, what happens to the concentration of H+?
- As the value of the pH decrease, what happens to the concentration of H+?
- Solution A has a pH of 5. Solution B has a pH of 9.
- What is the [H+] of both solutions?
- Identify the solution as acidic or basic.
- Which solution has the greatest concentration of H+?
Due:
Assignment
Equilibrium Experiment Make Up Assignment
Go to the following website and watch the video about equilibrium shift.
Go to the following website and read through the experiment. Write down observations from the pictured results on the right side of the webpage.
You do not need to go to the next page. Use these results to complete the lab worksheet. Write your conclusion including evidence from this experiment.
Due:
Assignment
Chapter 17 Equilibrium
Outline
Vocabulary
Active Reading Questions
Chapter Assessment Problems 1,4,6,13,15,31
ChemCatalysts
Equilibrium Demonstration
Equilibrium Experiment Analysis and Conclusion
Due:
Assignment
Equilibrium Demonstration Make Up Assignment
Open the pdf document and follow the procedure and answer the questions. Use measuring cups or plastic cups instead of graduated cylinders. Use a ruler to measure the height of the liquid in each cup.
Due:
Assignment
Equilibrium Experiment Make Up Assignment
Go to the following website and watch the video about equilibrium shift.
Go to the following website and read through the experiment. Write down observations from the pictured results on the right side of the webpage.
You do not need to go to the next page. Use these results to complete the lab worksheet. Write your conclusion including evidence from this experiment.
Due:
Assignment
Chapter 16 Acid Base Portfolio is Due
Vocabulary
Active Reading Questions
Chapter Assessment Problems 7,8b,9ac,10ac,14, 22ac,23ac,25ab,29,30ac,31ac,43,53
ChemCatalysts
Acid/Base MiniLab
Titration of Vinegar or Tums Lab Analysis and Conclusion
phooey or titration problem solving worksheet
Due:
Assignment
Due:
Assignment
Chapter 16 Acid/Base Titration Experiment Conducted on 3/10 & 3/11
The conclusion portion should be completed and placed in front cover of portfolio.
If Absent:
Titration Make-up
Directions: Go to the following website http://tinyurl.com/7vosya5, then conduct the following procedure. Write at least one conclusion paragraph
Procedure:
1. Select "Weak Acid vs. Strong Base."
2. Fill Burette with "Base."
3. Click on step 3. From the slide out choose CH3COOH and NaOH
4. Choose Phenolphthalein.
5. Click on the slider next to the Burette to add about 30mL of Base. Notice that the solution in the flask is too pink.
6. Click on "Reset" and then repeat steps 1-4 again.
7. This time add about 18-19mL of the base using the slider.
8. Click on the dropwise button until the first time the solution remains pink.
9. Write down the following data:
-
Volume of AcidMolarity of AcidVolume of Base
10. Calculate the Molarity of the Base using the data above.
11. Type answer into Step 6 box and click ok. Record your results.
Conclusion: Claim (what is the objective of a titration), Evidence (State specific information that describes a titration), Reasoning (Why does titration work, explain in chemical terms)
Due:
Assignment
Chapter 15 Solution Portfolio is Due
Vocabulary
Active Reading Questions
Chapter Assessment Problems 4,6,12ac,13ac,18,22,28,31,34,36,39,40,51
ChemCatalysts
Solutions MiniLab
Gummy Bears vs Kool-Aid Lab Analysis and Conclusion
Due:
Assignment
Acid/Base MiniLab
Simulation is available online at
If ABSENT Go to the above Website and complete two of the following:
- Given acids or bases at the same concentration, demonstrate understanding of acid and base strength by: Describing the similarities and differences between strong acids and weak acids or strong bases and weak bases.
- Demonstrate understanding of solution concentration by: 1. Describing the similarities and differences between concentrated and dilute solutions.
- Use both the strength of the acid or base and the concentration of its solution in order to:1. Describe in words and pictures (graphs or molecular drawings) what it means if you have a: Concentrated solution of a weak acid (or base) or Concentrated solution of a strong acid (or base) or other combinations. 2. Investigate different combinations of strength/concentrations that result in same pH values.
- Describe how common tools (pH meter, conductivity, pH paper) help identify whether a solution is an acid or base and strong or weak and concentrated or dilute.
Due:
Assignment
Chapter 15 Solutions Experiment Conducted on 2/19 & 2/20
The conclusion portion should be completed and placed in front cover of portfolio.
If Absent:
Kool-Aid Lab Make-up
Directions: Read the Salting Roads article in the ChemMatters magazine February 2006 (Attached File) and answer the following questions on a separate paper. Title the page Kool-Aid Lab Make-up and place in front pocket of portfolio.
- How does molecular motion change during the freezing process?
- Why does the presences of a solute, such as salt, cause freezing to occur at lower temperatures?
- What are the two ways in which salt is used by highway workers?
- Why don’t communities with very cold temperatures use salt on their roads?
- Why are salts such as MgCl2 and CaCl2 more effective than NaCl at depressing the freezing point?
- Give one disadvantage to salting roads.
Due:
Assignment
Solutions MiniLab
Simulation is available online at
If ABSENT Go to the above Website and complete two of the following:
- Use pictures and proportional reasoning to explain changes in concentration
- Draw what happens at the molecular level when compounds dissolve in water
- Use observations to explain ways concentration of a solute can change.
- Describe ways the formula, macroscopic observations, or microscopic representations of a compound indicates if the bonding is ionic or covalent.
Due:
Assignment
Ch 15 Outlines, vocabulary, and active reading questions
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Assignment
Chapter 13: Gases Chapter Assessment
7,11,14,19,21,23
Due:
Assignment
Gas Laws Practice worksheets
Goal is to understand each individual law first, then complete problems with all laws combined.
Due:
Assignment
Even: Due 2/10
Odd: Due 2/11
Portfolio Check:
Chapter 14 Outlines, Vocabulary, Active Reading Questions, Chapter Assessment 3, 7, 14, 19, 22, 35, 38
Melting Ice Experiment Data & questions
Phase Change Worksheet
Chemcats up to 2/5/15
Chapter 13 Outlines, Vocabulary, Active Reading Questions
Due:
Assignment
Chapter 13 Portfolio
Outline all sections
Vocabulary
Active Reading Questions
Due:
Assignment
Read and pre-Lab Experiment 11 Melting Ice.
Pre-Lab should include the following:
1. Purpose statement
2. Paraphrased steps (bulleted) of the procedures
3. Predetermined Data Table
Must have pre-Lab complete to conduct experiment.
Due:
Assignment
Chapter 14 Portfolio
Vocabulary
Active Reading Questions
Chapter Assessment questions:
3, 7, 14, 19, 22, 35, 38
Due:
Assignment
Complete both worksheets.
Place them in the back pocket of your portfolio.
Due:
Assignment
Chapter 10.2
Outline, Vocabulary, Active Reading Questions (2), Chapter Assessment #22, 23,24,27
Completed questions for Specific Heat Worksheets.
Due:
Assignment
Chapter 10.1
Outline, Vocabulary, Active Reading Questions (2), Chapter Assessment #6, 13, 14
Completed questions for Hot and Cold Lab.