Daily Assignments Calendar I. Why is the Climate Changing? Macroscopic, symbolic, and atomic-molecular view of chemistry Obtain course materials, available at Turtle Creek Bookstore. Bring all to class every day. Textbook by Gilbert et al (fourth edition!) A bound composition book to use as a lab notebook A 3-ring binder to hold all class handouts and activities Scientific calculator for use during quizzes (and homework) (1) For Monday January 21, 2019 Activity 1: How much is the climate changing? We will work on Activity 1 on climate change in class and talk about course goals, structure, and processes. Bring $8 to purchase written course materials for the semester. Bring safety glasses or $2 to purchase glasses for the laboratory. (Leave in your lab bin for the semester.) We will check in to lab and set up lab notebooks. (2) For Wednesday January 23, 2019 Lab 1: How much does air weigh? Hand in your "Scientific Autobiography" from Monday. Read "Learning Chemistry By Doing What Chemists Do and "Keeping Your Laboratory Notebook." Read and take notes on textbook Sections 1.8 (significant figures), suggested problems: 1.43, 1.45, 1.47, 1.49. (3) For Friday January 25, 2019 Activity 2: How are the atoms connected within atmospheric gas molecules? Lab 2: How are gas volume and pressure related? Lab 3: How are gas volume and temperature related? Read textbook Sections 8.2 and 8.5 (Lewis dot symbols), suggested problems 8.25, 8.27, 8.37, 8.41, 8.43, 8.45. See Figures 6.14, 6.15 and 6.20 in your text (kinetic-molecular theory of gases). Write Purpose and Method in your lab notebook for Labs 2 and 3. (Save 2-3 pages for remainder of lab 2 before you write P/M for Lab 3.). Hand in your lab notebook for grading of Lab 1: How much does air weigh? (4) For Monday January 28, 2019 Activity 3: What are the shapes of atmospheric gas molecules? Lab 4: Which gases absorb infrared waves? Read Activity 3 and text Sections 9.1 and 9.2 (VSEPR theory and molecular shape), suggested problems: 9.11, 9.25, 9.27, 9.31. How equally are electrons shared in a bond? Read text Section 8.3 and 8.4 (electron density, electronegativity and bond polarity), and Section 8.6 (formal charges), suggested problems: 9.41, 9.45, 9.47, 9.49. Read Lab 4 and see text Figure 7.1 (electromagnetic spectrum). During class, post your infrared spectra on the whiteboard. Hand in the Lab 4 worksheet at the end of class. (5) For Wednesday January 30, 2019 Activity 4: What are the sources and sinks of greenhouse gases? Demonstration: What happens when you breathe into water? Read Activity 4 and before class fill in the table, What do atmospheric concentrations tell us? Quiz #1 (bring calculator) (6) For Friday, February 1, 2019 Lab 5: Which recipe gives the most precipitate? Activity 5: How do we balance source and sink equations? Read text Section 3.2 (moles: the macro-nano connection); make sure to carefully follow the sample exercises by writing them down. Suggested problems: 3.23 Read text Section 3.3 (balancing chemical equations) suggested problems 3.1, 3.49, 3.51, 3.53. Read Activity 5 and balance the equations for your assigned questions in Activity 5. Write purpose and method for Lab 5: Which recipe gives the most precipitate? Hand in your lab notebook for grading of gas volume-pressure and volume-temperature labs. 5
(7) For Monday, February 4, 2019 Activity 6: What are your personal contributions to CO 2 emissions? Lab 6: How much carbon dioxide do you exhale in a year? Read text Sections 1.9 (dimensional analysis), suggested problems: 1.51, 1.53, 1.55, 1.57, 1.63. Read Calculations Reference handout (in the course packet before Activity 6). Read text Sections 3.4 and 3.5 (combustion and stoichiometric calculations), suggested problems: 3.25, 3.31, 3.59. 3.65, 3.67. Prepare for lab by writing the purpose and method for Lab 6. How will you measure volume? How will you measure time? (8) For Wednesday, February 6, 2019 Demonstration: A Mole of CO 2 Activity 7: How much do your daily activities contribute to rising greenhouse gas concentrations? Bring your completed Lab 6 calculations for class discussion. Quiz #2 (9) For Friday, February 8, 2019 Activity 8: How should we keep cool? Climate Change Concluding Activity Read text Section 6.4 (Ideal Gas Law), suggested problems: 6.73, 6.77, 6.79, 6.81. Read articles about refrigerants on the course web site (summary Activity 8.) Write a paragraph summarizing what is most important and/or interesting about the readings. In class we will do a group exercise on refrigerants and their connection to climate change. Hand in lab notebook for grading of Lab 5 Limiting Reactant and Lab 6 Take a Breath Laboratories. Integrative Project 1 What is the empirical formula of my cool blue copper compound? Synthesis, stoichiometry, and spectroscopy (10) For Monday February 11, 2019 Lab 7: Synthesis of a Copper-Ammonia Complex Read textbook Section 3.6 (Determining Empirical Formula) work through Sample Exercises and Practice Exercises 3.15 and 3.16). Read Lab 7, complete pre-lab questions, and write purpose and method in your notebook. (11) For Wednesday February 13, 2019 Lab 8: Ammonia Analysis via Titration Read textbook Section 4.6 (determine by titration the amount of product produced). Read Lab 8, complete pre-lab questions, and write purpose and method in your notebook. (12) For Friday February 15, 2019 Lab 9: Copper Analysis using Absorbance Spectroscopy Read textbook p.144-146 (Determining Concentration Using Beer s Law) Read Lab 9, complete pre-lab questions, and write purpose and method in your notebook. II. Food and Fuel: Which Energy Sources Should We Use? Covalent molecules and how they are transformed through chemical reactions (13) For Monday February 18, 2019 Activity 9: How do chemists represent the structure of molecules? Read Activity 9. We will work on the Chemical Notation Worksheet during class. Read text Sections 13.1, the first parts of 13.2 and the first parts of 13.3 (representing organic molecules and functional groups). Suggested problems 13.3, 13.7, 13.9, 13.29, 13.39. (14) For Wednesday February 20, 2019 Activity 10: How much heat is released upon fuel combustion? Lab 10: Fuel calorimetry Read text page 198, skim sections 5.3-5.4, and read section 5.5 (Energy transfer, enthalpy, heat capacity, and calorimetry). Suggested problems: 5.47, 5.51, 5.53, 5.61. Review Section 3.4 (combustion reactions) Read Activity 10 and answer questions 1-5 in your lab notebook as a pre-laboratory for Lab 10. Write a purpose and method in your lab notebook for Lab 10: Fuel calorimetry. Hand in your Copper Lab Report. 6
(15) For Friday February 22, 2019 Activity 11: Why do we make so much CO 2? Bond Enthalpies Worksheets Read text Sections 5.8 and 8.8 (fuel & food values and length & strength of bonds), suggested problems: 13.77, 13.85, 13.135. Read Activity 11. In class we will complete Activity 11 worksheets for several molecules. Summary Table and Questions 1-9 will be due at the end of class. Hand in notebook for grading of Fuel Calorimetry Lab. (16) For Monday February 25, 2019 Activity 12: What are some of the alternative fuels we could use? Lab 11: Hydrogen Fuel Cell Skim text sections 19.7, 19.9, 19.10 (batteries and fuel cells), suggested problems: 19.11, 19.85. Read text and Section 14.1 (cars and air quality) and p. 710 (catalysts and catalytic converters) Write purpose and method in your lab notebook for the hydrogen fuel cell lab. Quiz #3 (17) For Wednesday February 27, 2019 Activity 13: What functional groups are in food? Lab 12: Which household chemicals react the same way? Prepare for lab by writing the purpose and method for Lab 12. Read text Sections 4.5, 16.1, 16.2 (acids & bases). Review text Table 13.1 (functional groups), suggested problems: 13.61, 13.71, 13.79, 13.83, 13.89, 13.101, 13.139a, 13.139b. Read Activity 13. Complete Question 1 (circle and label as many functional groups as you can) and bring to class. Be prepared to discuss questions 2-5 (recognizing functional groups). (18) For Friday March 1, 2019 Intermolecular Forces Demonstrations Activity 14: How are functional groups, molecular sizes, and boiling points related? Lab 13: Can like attracts like be used to rank polarity? Read text Sections 10.2 10.4 (intermolecular forces between molecules, solubility), suggested problems: 10.2, 10.4, 10.23, 10.27, 10.47, 10.53, 10.101, 10.109. Review functional groups for Activity 14. Write a purpose and method for Lab 13: Like attracts like. (19) For Monday March 4, 2019 Lab 14: How does vegetable oil change when hydrogenated? Activity 15: What is the difference between a fat and an oil? In class, we will work on Activity 15 (review text sections 10.2-10.4 on intermolecular forces between molecules and solubility). Write purpose and method for Lab 14: Hydrogenation of Cooking Oils. Include chemical reaction scheme. Hand in lab notebook for Grouping household chemicals and Like attracts like labs. (20) For Wednesday March 6, 2019 Lab 15: What fatty acids are in vegetable oil? FAME preparation Write purpose and method for Lab 15: Transesterification. Include chemical reaction scheme. Quiz #4 (21) For Friday March 8, 2019 Lab 16: What fatty acids are in vegetable oil? GC and IR Analysis of FAMEs Write purpose and method for Lab 16: GC and IR analysis of FAMEs. Hand in Activity 15 questions 5-15, one copy per group, on a separate sheet of paper. MIDTERM BREAK 7
Integrative Project 2 - Synthesis And Analysis: Is My Aspirin Pure? Applying functional groups, molecular structure, and spectroscopy (22) For Monday March 18, 2019 Lab 17: Aspirin Synthesis Project Review text Section 3.9, p.114-115 (percent yield), suggested problems: 3.105, 3.111, 3.113. Prepare for lab work by writing a purpose and method. Read through the lab procedure carefully and outline your actions in your lab notebook, saving plenty of space for additions, corrections, and observations. Be prepared to start lab work as soon as you get to class and work efficiently. (23) For Wednesday March 20, 2019 Lab 18: NMR and IR of standards, % yield, color test Hand in Lab 17 homework problem at the beginning of class. Review IR spectroscopy using your notes. Post NMR spectra and IR spectra for reference compounds outside the classroom. (24) For Friday March 22, 2019 Lab 19: Aspirin NMR and IR and aspirin product titration During class obtain IR and NMR of your synthesized aspirin. Review textbook section Section 4.6 (determine by titration the amount of product produced). During class titrate your product until two trials agree for the molecular weight of the aspirin. (Do the calculations in lab!) Hand in Lab 18 IR and NMR Worksheets by the end of class (25) For Monday March 25, 2019 Lab 20: Is My Aspirin Stable? Bring completed % yield and molecular weight calculations. Write purpose and method in your lab notebook for Lab 20: Is My Aspirin Stable? Read through the lab procedure carefully and outline your actions in your lab notebook, saving plenty of space for additions and corrections to your actions, and for observations. Be prepared to start lab work as soon as you get to class and work efficiently. III. What changes can we make to reduce our environmental impact? Chemical periodicity, metals and ions, and interaction of light with matter (26) For Wednesday March 27, 2019 Activity 16: How should we make light? Read text Section 7.1 (waves of light) and Fig. 1.27 (p. 31), Fig. 7.1 (p. 318), and Fig. 7.15 (energy level diagrams). Read your assigned online article set (AGL, BJM, CKN, DEH, or FIO) and write a summary paragraph or page of notes. During class we will fill out the table What lighting options are currently available? Activity 16 Questions due by the end of class. Separate sheet of paper, one copy per group. Quiz #5 Aspirin Lab Worksheet Due Friday March 29, 2019 ADVISING PRACTICUM (27) For Monday April 1, 2019 (ACS) Activity 17: Which elements in the periodic table are metals? Lab 21: How can you identify different sources of light? Read textbook sections 12.4 and 12.5 (semiconductors) Read Activity 17 and using the videos on course website complete Question 2, Which elements conduct electricity? In your course packet before class. Read through Lab 21 Sources of Light. After lab, your answers to questions 1-6 will be due at end of class. Hand in Aspirin Stability Worksheet (28) For Wednesday April 3, 2019 Activity 18: Why have metals been used through the ages? (Logan Museum) Lab 22: How well do different materials conduct heat? Class will start in the Logan Museum (meet at the entrance to the museum) Read text Section 2.4 (periodic table) and 12.3 (alloys) and Table 8.1 (p. 376). 8
(29) For Friday April 5, 2019 Lab 23: What is the net ionic equation? Read text Section 2.6 (naming ionic compounds) and text section 4.7 (precipitation reactions). Finish ionic precipitate laboratory by writing balanced chemical equations for reactions where a precipitate is observed, leaving out the spectator ions. (30) For Monday April 8, 2019 Activity 19: How can we represent solids? Lab 24: How are structure and properties of solids related? Examine ionic radii in text Figure 10.2 (page 478). Are positive ions or negative ions bigger? Read text Sections 12.1, 12.2 and 12.6 (unit cells) and review Table 8.1 (page 376.) Read Activity 19, especially the sections on Counting Atoms and Layer Sequences. Hand in notebook for grading of Thermal Conductivity and Ionic Precipitates. (31) For Wednesday April 10, 2019 Activity 20: What controls the properties of elements? Lab 25: How are structure and properties of solids related? Read textbook Sections 7.10 7.12 (periodic properties). Read Periodic Properties Activity 18 and bring your finished worksheet (problems 8-16) to class. What happens at the macroscopic and at the atomic-molecular level in metallic, ionic, and covalent network solids when you bend such a material? Be sure that you have built models that represent each type of bonding as you do your structure and properties lab. (32) For Friday April 12, 2019 Lab 26: How can you get a specific color of light from a solid? Prepare to do Lab 24. Read the introduction and procedure Answer the Pre-Lab Exercises (questions 1-8) in your lab notebook. (33) For Monday April 15, 2019 Lab 27: How do we know how atoms are arranged in solids? Read text Section 12.9 (X-ray diffraction). Quiz #6 (review textbook Chapter 12 to study) (34) For Wednesday April 17, 2019 Lab 28: Synthesis and characterization of CH 3 NH 3 Pb(I 1-x Br x ) 3 Solid Solution Perovskite Semiconductors Prepare for Lab 26 by reading the entire lab and writing purpose and method in your lab notebook. Introduce Activity 22: Is my soil poisoned? (35) For Friday April 19, 2019 Activity 21: New Kinds of LED Lighting Summary Exercise The results from Labs 21, 26, 27 and 28 will be needed for the Lighting Summary Activity 21. Most of you should almost get this finished in class, but it will be due Monday. Begin reading in preparation for Activity 22 on Monday. Integrative Project 3 - Is my soil poisoned? Applying quantitative lab techniques and atomic spectroscopy to a new environmental problem (36) For Monday April 22, 2019 Activity 22: Project Design: Is my soil poisoned? Read Activity 22 Is my soil poisoned? in your course packet and the background readings on the course website. Write a paragraph summarizing what you read and providing references. Where might you find lead in Beloit? An important component of the final project is choosing a reasonable site, backing up that choice with literature references, and designing a sampling strategy that tests your hypothesis. We will collect and document soil samples for analysis, return to the lab and put the samples in the oven to dry. Wednesday April 24, 2019 SPRING DAY (37) For Friday April 26, 2019 Lab 29: Preparation of Lead Samples and Standards Prepare thoroughly for this project by reading the entire experiment and by writing a purpose and method and an outline of the procedure for Lab 28. In class you will boil dirt, extract the lead, and start preparing sample and standard solutions. 9
(38) For Monday April 29, 2018 Lab 30: Atomic Absorption Spectroscopy of Lead Samples & Standards Hand in Lead Homework I at the beginning of class. In class you will do atomic absorption spectroscopy analysis of your sample and standard solutions. (39) For Wednesday May 1, 2019 Lead Project Data and Calculations Hand in Lead Homework II at the beginning of class. Finish atomic absorption spectroscopy analysis of your sample and standard solutions if needed. Complete lead concentration calculations for all soil samples you have analyzed. We will compile class data for our site map. (40) For Friday May 3, 2019 Lead Letter Peer Review Bring a printed draft of your Lead Project Letter for peer review (one copy for each group member). Check out of lab and complete course evaluation during class. (41) For Monday May 6, 2019 Quiz #8 (42) For Wednesday May 8, 2019 Lab 31: Which solvent is best to clean a vandalized painting? Prepare for Lab 31 by doing background readings and watching video on course website. Submit your Lead Project Letter (one copy per group). 10