Project #3_ Kinetics of Gatorade W24

pdf

School

University of California, Irvine *

*We aren’t endorsed by this school

Course

CHEM 1LE

Subject

Chemistry

Date

Feb 20, 2024

Type

pdf

Pages

Uploaded by AdmiralFog8928

2/6/24, 8:02 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/pub 1/13 PRE-LAB QUIZ Quiz #4 Session #1 A Canvas pre-lab quiz is due every week at 11:59 pm the day before your lab section. The information needed to answer these questions can be found in your general chemistry lecture textbook, the Lab Safety for Chemists online text (Section 4.1.1) and in documents hyperlinked within this document. INTRODUCTION Kinetics , the study of the speed or rate of a chemical reaction, is one way to determine the reaction mechanism (the breaking of reactant bonds, the creation of reaction intermediates and the forming of product bonds). Why study kinetics? Understanding the reaction mechanism of industrial scale synthesis Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

2/6/24, 8:02 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/pub 2/13 allows for money saving optimizations. Determining the kinetics of environmental processes demonstrates how chemical hazards affect air and water quality. Knowledge of the reaction mechanisms of biochemical processes guide pharmaceutical design. In the Fundamental Skills section of this experiment, you and your team will look at the kinetics of crystal violet hydroxylation. Crystal violet, which creates a deep purple solution when dissolved in water, has been used as a cytology stain, an antiseptic, an ink component, and a colorant in a antifreeze and detergent. Hydroxylating (add sodium hydroxide to) a crystal violet results in a decolorization of the solution, indicating a chemical reaction. Some information about the mechanism of this reaction can be found by monitoring the loss of color (the loss of absorbance) as a function of time. For a generic chemical reaction: bB + cC → products The typical equation for a rate law is: Rate = k[B] x [C] y The reaction orders, x and y, are found experimentally and indicate how the rate depends on the reactant each is associated with. Reaction orders are typically 0, 1, or 2. The rate constant, k, is a constant for a particular reaction as long as the temperature does not change. If the reaction is monitored as a function of time when one reactant (C for example) is in excess, the rate law can be simplified to: Rate = k 1 [B] x where k 1 = k[C] y This simplified “pseudo” rate law can be integrated to create a rate law with a line equation form. Creating the plots indicated in the last column of the table enables one to determine the reaction order for B. The function of [B] vs t which demonstrates a linear relationship reveals the reaction order of B. Table 1. Rate Laws Order Rate Law Integrated Rate Law Plots 0 Rate = k 1 [B] 0 = k 1 [B] t = -kt + [B] 0 [B] t vs t 1 Rate = k 1 [B] 1 = k 1 [B] ln[B] t = -kt + ln[B] 0 ln[B] t vs t 2 Rate = k 1 [B] 2 1/[B] t = kt + 1/[B] 0 1/[B] t vs t The chemical reaction and rate law for the hydroxylation of crystal violet are: CV + + - OH → CVOH Rate = k[CV + ] x [ - OH] y If an excess of hydroxide ion is used, the [ - OH] y term can be assumed to be constant (any reduction in concentration can be ignored because the Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/pub 3/13 concentration is so large). The new pseudo rate law can be written as: Rate = k 1 [CV + ] x where k 1 = k[ - OH] y . How is [CV + ] measured as a function of time? Because crystal violet is a colored species, Beer’s Law (A = eCl) can be invoked, allowing for the assumption that absorbance can be used in place of [CV + ] because the two quantities are directly proportional to each other (i.e., A ≈ [CV + ]). In the Original Investigation part of this project, you will use what you learned in the Fundamental Skills section to determine the rate law of one or more Gatorade dyes. Bleach (sodium hypochlorite, NaOCl) will replace sodium hydroxide as the excess reactant. Reaction of Dyes with Bleach In Project #2 you were introduced to 3 dyes: Red 40, Yellow 5, and Blue 1. In this project we will add another dye found in Gatorade, Yellow 6. Including the crystal violet, the dyes handled in this project can be separated into two different categories: ● azo dyes, which are named after their central -N=N- linkage (Figure 1) ● triarylmethane dyes which contain a center carbon (“methane”) bound to three benzene rings (“aryl”) (Figure 2) Red 40 (allura red AC): Na 2 [C 18 H 14 N 2 O 2 (SO 3 ) 2 ] Yellow 5 (Tartrazine) Na 3 [C 16 H 9 N 4 O 3 (SO 3 ) 2 ] Yellow 6 (sunset yellow FCF): Na 2 [C 16 H 10 N 2 O(SO 3 ) 2 ] Figure 1. Azo Dyes in Gatorade In this project you will react bleach (sodium hypochlorite, NaOCl) with the dyes. Bleach is commonly defined as a substance that removes stains or whitens fabric. Sodium hypochlorite oxidizes a dye, chemically changing the dye into chemical(s) that do not absorb visible radiation and are, therefore, not colored. Azo dyes are usually oxidized into two compounds, splitting in two at their Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/pub 4/13 azo linkage. Triarylmethane dyes react at their center carbon in a way that either separates the 3 aryl groups into 3 different chemicals (Blue 1) or bonds directly to the center carbon (Crystal Violet). For both types of dyes, the extensive bonding responsible for HOMO-LUMO gaps in the visible region is destroyed. Blue 1 (brilliant blue FCF): Na 2 [C 37 H 34 N 2 (SO 3 ) 3 ] Crystal Violet C 25 H 30 N 3 Cl Figure 2. Triarylmethane Dyes Concentration Units For the Fundamental Skills section, molarity (moles / liter) will be used to describe the concentration of both the crystal violet and the sodium hydroxide reagents. However, the concentration of bleach, which is used in the Original Investigation, is typically reported in volume percent (volume of solute / volume of solution x 100). Serial Dilutions During this project, you and your team may need to perform multiple dilutions on one or both reagents involved in the reaction you are investigating. Often, an easy way to approach such a task is to do a serial dilution, where each successive dilution reduces the concentration by the same factor. Table 2 contains two examples for such dilutions starting with a 4.5% stock solution (your stock solution concentration may differ). The accuracy of a graduated cylinder is enough for this experiment, as the solution created will be used to obtain an entire set of absorbance / time data. A small concentration error will not change the relationship between the two variables. However, this is not a general rule for serial dilutions. Table 2. Serial Dilution Examples with Percent Volume Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/pub 5/13 Solution Two-fold Dilution (concentration reduced by ½ with each dilution) Ten-fold Dilution (concentration reduced by with each dilution) Stock 10 mL of 4.5% volume stock solution 10 mL of 4.5% stock solution Diluted Solution #1 Take 5.00 mL of 4.5% stock solution, dilute it to 10 mL by adding solvent to form a 2.25% solution. Take 1.00 mL of 4.5% stock solution, dilute it to 10 mL by adding solvent to form a 0.45% solution. Diluted Solution #2 Take 5.00 mL of Diluted Solution #1, dilute it to 10 mL by adding solvent to form a 1.125% solution. Take 1.00 mL of Diluted Solution #1, dilute it to 10 mL by adding solvent to form a 0.045% solution. Diluted Solution #3 Take 5.00 mL of Diluted Solution #2, dilute it to 10 mL by adding solvent to form a 0.5625% Take 1.00 mL of Diluted Solution #2, dilute it to 10 mL by adding solvent to form a 0.0045% solution. Further Dilutions Continue above pattern. Continue above pattern. Note: Stock bleach concentration may vary, adjust calculations accordingly. GUIDING QUESTION(S) 1. Fundamental Skills : What are the optimal conditions to observe the kinetics of the crystal violet hydroxylation? What is the reaction order of crystal violet? 2. Original Investigation : You will be performing kinetics studies on the dyes in gatorade. What are the optimal conditions to observe the kinetics of the bleaching of your chosen dye? (Use the 1:10 dilution process for the bleach.) What is the reaction order of that dye? a. Once you have found the optimal concentration for the bleach, test this concentration on the gatorade. Gatorade, dyes from gatorade, and bleach will be provided next week and all of the laboratory equipment or glassware used in the Fundamental Skills section will be available. Use the Original Investigation framework provided in stemble to help you and your team plan a course of action to answer the question during next week’s lab period. Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/pub 6/13 Session One SAFETY MOMENT (WEEK 7): Context of Chemical Use Your TA will assign each team one of the household products and a chemical it contains. Look up the SDS for the chemical and the information about the cleaner’s ingredients. Answer the questions for your assigned cleaning product in the Project #3 Fundamental Skills (FS#3) In-Lab Stemble Assignment . Select a team member to present (in 1-2 minutes) your answers to the class. Acetic Acid Ethanol Ammonium Hydroxide Lactic Acid Ethylene Glycol Oxalic Ac a. What GHS symbol(s) are associated with the chemical? What hazards do these symbols represent? b. What is the most common route of exposure and what needs to be done to prevent exposure? c. What is the concentration of the chemical in the product shown? d. Why do you think the product is safe to consumers despite the warnings in the chemical’s SDS? Are there any reactions with the chemical listed that can cause hazards or demonstrate how the human body’s other associations with the chemical? FUNDAMENTAL SKILLS Before your lab section: ● Fill in the Project #3 Fundamental Skills (FS#3) In-Lab Stemble Assignment before the lab session . At the beginning of the lab section, your TA will: Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/pub 7/13 ● Make sure you are dressed appropriately and have personal protective equipment (lab coat, goggles and gloves). ● Discuss experimental determination of reaction orders. ● Make sure a team leader is nominated for the project. Safety: Goggles, gloves, a lab coat, thick long pants completely covering the ankles, and sturdy water resistant closed toed shoes are required when performing any experiment utilizing chemicals, glassware, and/or lab equipment in a chemistry laboratory. Use plastic wrap to protect touched surfaces of your laptop and personal devices. Bookbags need to be hung on hooks under the lab tables or placed at the front of the room, away from chemicals. There should be no clutter and tripping hazards on the floor. Sodium hydroxide, bleach, and crystal violet are corrosive and can cause eye and skin irritation and/or burns . ● Strong bases ( sodium hydroxide ) are more hazardous than the weak acid or base buffers. Bases typically saponify skin (turn it to soap) long before feelings of discomfort. The higher the concentration of acid or base, the more hazardous the chemical. ● Avoid contact with skin and eyes. Wash affected area immediately if a chemical comes into contact with bare skin. If a large quantity is splashed on you, notify a labmate and/or TA while moving toward the eye wash (by the lab door) or shower (in the hallway). Contaminated clothing should be removed as soon as possible. ● Replace gloves if they become contaminated with chemicals, do not continue to wear the gloves and spread the contamination throughout the lab. ● Notify the instructor if any chemical is spilled. Acquiring absorption spectra : Calibrating the Spectrometer Obtain two visible spectrometers and two LabQuest3 per table group from the front of the lab. Use the USB cable to connect the visible spectrometer to the LabQuest3. Calibrate the spectrometer by clicking . The calibration dialog box will display the message: “Waiting…seconds for lamp to warm up.” For best results, allow the spectrometer to warm up completely. Do not press “Skip Warmup”. Create a blank. The solvent and imperfections in the cuvette can absorb light in the same region of the visible spectrum as your sample. To eliminate these interferences, the spectrometer must be “blanked”. What should be used as the blank in this case? Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/pub 8/13 ● Fill a cuvette with your solvent and wipe the outside with Kimwipes to remove any fingerprints or liquid. Why is this step necessary? ● Insert the cuvette into the spectrometer when prompted so light passes through the clear sides. Click Finish Calibration and then OK . Remove the cuvette when done. Crystal Violet Absorbance Spectra Create a Sample. ● Pre-rinse a cuvette with 2.0 x 10 –5 M aqueous crystal violet solution. ● Fill the cuvette with 2.0 x 10 –5 M aqueous crystal violet solution. ● To obtain a spectrum, place the sample in the spectrometer and click . Click once the data collection is complete. ● Examine the absorbance spectrum and note the wavelength of maximum absorbance, λ max . What color of light is being absorbed by the sample solution? How is that color related to the color of the solution? Attach the file to the Stemble assignment and provide screenshots of the absorption spectra. Crystal Violet Hydroxylation The stockroom will provide a 0.10 M NaOH stock solution. As a team determine how to do serial dilutions to create at least 5 mL of 0.01 M, 0.001 M, and 0.0001M solutions of NaOH. While taking turns using the spectrometers, each team member is responsible for one kinetics run with one of the above concentrations (including the 0.10 M stock solution). Determine which concentration provides the best data. To collect absorbance versus time data, go to the window, click on the mode and change it from full spectrum to time based. Change the duration to 24 minutes and interval to 0.25 min/sample. Click OK . ● In the red box, check your λ max . If needed, change the value of λ max to the value you recorded in the “Create a Sample” steps by clicking the red box and clicking “Change Wavelength”. Input the correct λ max . Why is this wavelength used? Pour 5.0-mL of the NaOH(aq) solution you prepared and 5.0-mL of 2.0 x 10 –5 M crystal violet solution into separate graduated cylinders. ● Simultaneously pour the 5-mL portions of crystal violet and sodium hydroxide into a beaker and stir the reaction mixture vigorously with a stirring rod. ● Important Note: Start with an empty cuvette. Pre-rinse the cuvette once with ~1-mL amount of the reaction mixture. ● Fill the cuvette 3/4 full with reaction mixture. Wipe the outside of the cuvette, place it in the cuvette slot of the spectrometer so the light passes through the clear sides of the Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/pub 9/13 cuvette. Click . Place the beaker with the leftover reaction mixture solution in a position where it can be observed periodically during the next few steps. ● Data collection will end after 24 minutes. If you believe enough data has been collected before 24 minutes has passed, click to end data collection. (Note: If the initial data is sporadic, remove those points when analyzing your data). What has happened to the color of the leftover solution in the beaker? ● Place the solution in a 100 or 250 mL beaker for neutralization at the end of the lab. Each pair in the group should use the same beaker to collect the waste solutions. You will neutralize the waste with citric acid at the end. ● Repeat the above steps for the other concentration of NaOH. Transferring Data from the LabQuest3: ● Go to the File menu on the LabQuest3, choose “Email”. Choose “Data File” (or “Graph”, “Text File”, or “Screenshot”). ● Enter your email address in the “To:” field. Hit “Send”. ● Check your email for the file. Refresh your email, you should receive the email immediately. If you do not receive anything within 5 minutes, resend. ● Repeat the process to receive the Graph, Text File, and Screenshot of your data. Neutralization Combine all liquid waste into a 1L beaker and stir gently. ● Check the pH of the solution before moving on. If the pH is ~7 (appropriate range = 6-8), pour the waste down the drain. If the pH is not 7, adjust accordingly with sodium bicarbonate or citric acid to pH 7. ● To prevent foaming over, slowly pour the sodium bicarbonate into the beaker and stir in before adding more. Check the solution with a small piece (< 1 inch) of pH paper. ● If pH = ~7, the solution is neutral and can be poured in the sink. ● Use copious amounts of DI water (the small sink faucet) to clean the glassware. This water can go down the drain. If water beads up on glassware or the glassware looks dirty, use 5- 10 mL of soap solution to clean the glassware and then rinse again. ORIGINAL INVESTIGATION Now it is time to answer the first Guiding Question and create a plan to answer the second one: Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/… 10/13 ● Fundamental Skills : What are the optimal conditions to observe the kinetics of the crystal violet hydroxylation? What is the reaction order of crystal violet? As a team, discuss these questions based on the work you have done in the Fundamental Skills section. ● Original Investigation : You will be performing kinetics studies on the dyes in gatorade. What are the best concentrations of bleach to observe the kinetics of the bleaching of your assigned dye? What is the reaction order of that dye? ○ Once you have found the optimal concentration for the bleach, test this concentration on the gatorade. Planning questions can be found here . Gatorade, solutions of dyes found in gatorades, and a stock bleach solution will be provided next week and all of the laboratory equipment or glassware used in the Fundamental Skills section will be available. Use the Original Investigation framework provided in the Project #3 Original Investigation (OI#3) In-Lab Stemble assignment to help you and your team plan a course of action to answer the question during next week’s lab period. Session Two PRE-LAB QUIZ Quiz #4 Session #2 A Canvas pre-lab quiz is due every week at 11:59 pm the day before your lab section. The information needed to answer these questions can be found in your general chemistry lecture textbook, the Lab Safety for Chemists online text (Sections 2.1.2), the Odyssey program and in documents hyperlinked within this document. SAFETY MOMENT (WEEK 8) Fire Tetrahedron The fire tetrahedron can help us to understand how to mitigate fires when they happen. Fires need 4 things to propagate: Fuel, Heat, an Oxidant (usually oxygen), and the ability to propagate a chain reaction. Taking any one of these four things away can put out a flame. Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/… 11/13 Before lighting any matches or lighter, check with your TA and make sure no solvents or combustibles are in the vicinity. As a team, pick up one candle, a box of matches or lighter, an empty 100 mL beaker, a crucible (ceramic bowl), and a squeeze bottle of water. Do the next steps in the fume hood. You will need to relight the candle between each step. All matches should be placed in a beaker with water to insure they are completely extinguished before throwing away in the trash can. One team member is responsible for putting out the candle out using one of these methods: 1. Oxygen: Put a beaker over the candle to remove all oxygen. Real world application: ABC fire extinguishers use monoammonium phosphate to smother the fire. 2. Chain reaction: Blow the flame out to disrupt the chemical chain reaction by disrupting the fuel to oxygen ratio. Real world application: Halon fire suppression systems directly inhibit the combustion chain reaction through a free radical mechanism. 3. Fuel Removal: Light a match and place it in the crucible. The back (unlit) end of the match should rest on the top edge of the crucible. Observe what happens to the flame and matchstick. Real world application: When a wildfire poses little safety risk or potential damage to buildings, firefighters will establish a barrier to contain the fire and allow it to burn itself out. 4. Heat Removal: Squirt the flame out with a small squeeze bottle of water. Real world application: Water is used by firefighters to control heat inside of a burning building. As the water turns to steam, it absorbs heat from the fire. What is the term for the energy required to turn water to steam? Answer the following questions Project #3 Original Investigation (OI#3) In-Lab Stemble Assignment : Which of these methods seemed to be the least dangerous and most effective for extinguishing the fire? What factors did you consider in making this decision? ORIGINAL INVESTIGATION As a team, proceed with the plans you outlined last week for the Original Investigation . Note: Bleach is Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/… 12/13 NOT neutralized, it is washed down the sink with copious amounts of water. Once your data collection and analysis is complete, create a “poster” on your lab bench with the blackboard markers provided by your TA containing the following sections: ● Guiding Question: Restate Guiding Question #2. Do not feel that you have to write it word- for-word as it appears on the previous page. ● Claim: Answer to Guiding Question #2. ● Evidence: For this experiment, no content from Fundamental Skills (i.e. your answer to Guiding Question #1) needs to be included, as it should have informed your approach to the Original Investigation . Decide as a team how the information found in the Original Investigation should be incorporated as concisely as possible. ● Justification: How does the evidence you included support your claim? What assumptions made or scientific theories/laws were invoked during data analysis and interpretation? ● Comments: The team leader should take down important ideas gained from other teams during the poster presentation. ARGUMENTATION (POSTER SESSION) You and your team will then compare and contrast your results with your peers during the poster session. Nominate one team member will be your “spokesperson” who will stay with the poster and answer any questions from your labmates. (Each project will have a different spokesperson.) The rest of the team will be “travelers” who will go to other posters and engage in discussion about data collection and interpretation. The goal during this session, this Argumentation , is to challenge your peers’ reasoning and reevaluate your own. Spokespersons and travelers should discuss the claim using the evidence to justify their own point of view. What you discover during this process is pivotal for creating a good Lab Report . The three boldface questions below apply to all projects. A few sample questions specific to this project are provided here to help the spokesperson prepare and travelers initiate in-depth discussion while at each poster. ● What concept(s) were you investigating and how are they related to the guiding question(s)? ● How did you go about your work and why? ● What is your claim? How does your evidence justify your claim? At the end of the poster session, completely clean the poster from the lab bench as directed by your TA then your team should hold a short discussion to re- evaluate your claim based on what they have learned Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

2/6/24, 8:03 PM Project #3: Kinetics of Gatorade W24 https://docs.google.com/document/u/1/d/e/2PACX-1vRgJuqq1OmcvN3lL31UVXe-M3KHBPeimqX3qrtMQoryHUAi3wL8YgVcduTWdp4oEHX07RssjeQ6N0_t/… 13/13 during the poster session. If time permits, you can collect more data. Take a picture of the “poster” and attach it to the appropriate field in the Project #3 Original Investigation (OI#3) In-Lab assignment . Once you have finished all your work on the In-Lab page, review the assignment formatting document before leaving lab. LAB REPORT The lab report is an individual, not team effort. The content of the report is based on the evidence, claim, and justification your team shared during the argumentation section and the understanding you gained by comparing those ideas against those of other teams. (Be willing to adjust your justification and/or claim in response to what you learn in the argumentation poster session.) Use the rubric and the boldfaced questions above to structure your lab report. The first page should answer the first two questions shown above, the second page should answer the third question. However, these are formal reports, not separate responses to the three individual questions - make sure your writing flows and creates a cohesive message. Lab Report: Review the assignment formatting document before the next step. Complete the Project #3 Lab Report (LR#3) Stemble assignment by 11:59 pm the day before your week 7 lab period. Published using Google Docs Report abuse Learn more Project #3: Kinetics of Gatorade W24 Updated automatically every 5 minutes