Chem 1AL- Lab 4: Toy Design with Polymers, Lab Reports of Chemistry

Download Chem 1AL- Lab 4: Toy Design with Polymers and more Lab Reports Chemistry in PDF only on Docsity! Report Sheet Name Anwa 2a dire Partner(s) Ageh Agate Part 1: Selection of Contest Parameters 1. List the four competition cate: ‘ gories, and a bri ipti statin designed by your class for testi a brief description of the quantitative method ing each of these four properties. Cer ie este Ge ed height and oe Leeght ot wales B. Sihieherels le ck bed)ate- aLoey bees 43 gue Lace esol =f waked pee chiness 7 [et vert ll Gels Ghpateby, cline): | é J ease length a cleekehes Wslsce al [esachers D.Viscesst (ciresics slime): Lees is ee es slr ci brecll ] ‘s ml: ee oe cree let dere if in tee phe AM spega ds oot an measuve Part 2: Optimization 2. Which property will you and your partner optimize? We will optimize th. Blea ites al a pelynee 3. What is your initial model for your property? Identify three independent variables in your model that you can test to determine their effects on the property of interest. Hint: the data you gathered in the last experiment in Part 1 will help you with this. eileen WE cokitah Model 1: tie catis «cod panne ee er a ee (Gc eB irenen clashes se aa Wee poelisbre ee ee ae ca eons yop Hpi, i eee ap tebe d. Dae ie seen gly r I { el Independent variables: T | « om nes ta vavvables We ave neta BG ba nee, kp te peat eet MN eee lat time it a mer aes Na Peal: lla Hypothesis 1; | tle ak ML. NS ! Tabi} tl. fadheale om ass 3A PV AS jee" bee ey ge } Asda dL. Le ae ee Hae ae en lee en OgPAOh «cc laNe™ when Gl lwate dont f ( How ad this conclusion inform your choice for the next experiment? ae apse cf Mate Loa tee will M$. this sy a ti | se qL.k lh es (aoe (0.5 ~t) will Table 2 i ; > wen Graph 2 Qmerel of bee GM si LL Le Ue} ee et = Ds Sek Ble ew a et Tes, lesmk QA Sex eS }—__.. wie leg ok A ae a 4 — % 9 2. 1:0 iam 0.8 v V4 L Phreok gh Ces tan) Las ee ee us pela al os ee est ee 1 tes yo shall ten gt How does this conclusion inform your choice for the next eo ke aE experiment? “be 0.5 aa (e of Bovey im anit tees teal \ ste eval etal Ose Fl Mesa ue ae eetey isa ea Re ice 40, We ee ee Bey aki nGe 86  Cheek vot Niece Na eee ae oles Sle Sees ee ar, she eG { fee ld) Ute addes t Wein evr veper Ee { : astra ) Part 3: oe 7 ole Wy eens 2 | fe i 7. Write observations from shared your data and m property? competition judging here. Who had the best model? Now that you've ethods with others, what should be the next step in optimizing your abs Ne Tee] Gere Ho hed Gvevp | Fore le From Pare Sed Core eal lr epee le haces © elthy Mat Meencks | VO Oe 28 em oo - Limiee ale by re) ur p<" © Ayah 4.15 ~LPval { Least oe NA cin 40 j Gana 0.5 mt Gera, ii cs \| ° eur 6 |tuhy eetefens Vee, | Soi 1. ed Codecek [urs ave Soest peaeee ee aan ae | ols abe ss ee el ivorson lata cdabtersnee e (+. { Serene er ee etieal Been. Reflecting on the results: 3 8. How did intermolecular forces (IMFs) or cross-linking relate to your design? What decisions did you make that would optimize the properties? State the desired strength of IMFs (relatively) and how you chemically achieved these goals. Be sure to mention your decision in formulations and how you adiusied jen formulations p met your goals. When we ouwave i ae ae eur al wsier Yee § here wesa lesa oe war lp eva mt eel ts : ahts ee “Jy. Le tdi 4 Oe ee el ene oe a a ict Sa ie Pee ime We ee eae CULT se Gee, ea geen folks, wey ca igesa olseus th lao aN ie re eee tp deg Urabe ee te i enoly 3 e MEs is ve ee Sena: ns eae ma eet Eber Sbe zs ee 7 ols 9. Consider the different factors involved in judging the toy competition. How a your group ~ come to a consensus on which toy was the best? Do you think this process reflects the methods a used by the larger scientific community as they validate scientific knowledge? yey ony or why, ee not? «Juv vee cawe e a tt Lt whieh beg sp tinine dlteabel Le bce Rsk | Remake ae eraxpwhi cage eas ‘ Cid. Frckisgt tea leell i i ,) ee alee bs re | hae: aaa OR ee eT Syrian pe L. PVA abe bak “Tong | Pal lckigdidlibs d« aad L fee larger bee pa are compd vol LNG. ibraaomt et ayes j ce 4 us a es if + Teka a Me . ivalenths |) feeble | ee ot re. igh id Reeal abs Me dict tay Ths fede at fatale 1 ! ea sie i] . fi Been as i { ae takk acon autcess 46 ve the ser Fe ligt i j ‘LJ ; aes ae see): How do you balance safety and performance W You are a summer research intern in the Resear ch and Developme! rove the sa creates children’s toys. This company works to imp! ea y products. You're asked to present your ideas for a nev Ae ranen es : our ex| also non-toxic since it’s for young children. From your d w polymers ani eed to consi some information about the properties of a fe company’s green safety focus you know you'll also n health impact of each polymer. 10. From your experience in this two-week experiment, ii that you think would work best for children’s toy. What dat { The gdeta . sh hinese Qualitative evidence (stickiness, color, feel, moldable, etc.) might make a fun toy? Polymer(s) shen designing 4 product? nt department at a company that fety and sustainability of their children’s toy. The toy needs to be fun but perience in general chemistry, you have polymer mixtures. Based on this der the environmental and human choose two polymers or polymer mixtures do you have thee indicates they is entive Quantitative evidence (bounce height, stretch length, etc.) - whi be Saline edhick Ste i douse hi eentore i; ulceke ue du. mtu cme pe alele Viewed bss ed j 130. Sem alan Boers s c wverg clashic PA er nee PU Py eal. | { Peale skies sad tee eae Bld ale -, peas Be IS aed Gap agetl OF este lll flout: To ensure that this toy is safe for children the com; health data they have for each polymer. pany gives you the environmental and human Polymeri Hum: ; Serie CAS No. Health Persistent in the | Accumutates in Fish LCso | Soluble in Material Effects Environment Organisms | (ng/L water) | Water Guar Gum |} 9000-30-0 | unknown unknown unknown 218,000 yes Polyvinyl i alcohol _ | 9002-89-5 | suspected no no 86,000- 118,000] yes Polyvinyl Nctare | 9003-20-7 | suspected yes es data not ; no Data retrieved from EPA databases: ACToR (hitp://actor.epa gov) and ECOTOX( available 90 http: Awww.epa.gov/ecotox. 11. What trends do you notice i in th e toxicity data? ; Cea (| Oe as Val csaorh ties haat ; eee ee | sigs Urlatige: “Fy ey cl. LI, ea Lt rv eb oo Fee pled a \ Ha hls bert patcieeics 4 s veh exis Be Te nH cy 4.0 [ My mers ain alee AVS re exre oe P ie oe eee ae aL (ihe ash (ee ef ye af ele 12. odobal thihk it’ S more important to consider am health or Teele effects for this a your choice. Fo las “4: 2 va perkas . eete i aies [ oa keallt. eee = See Vantin conned ity aera: (aes le sie 4} ee Vl te sch came luda wv abe te Lay Pusan ohe ee ie weve pen vont a a ee: +h bide jipouaie cen apamatonatl oat ick a rt a 13. What does it mean if data is unknown ot missin; ee does Ss ae influence your Spiniono on the safety of that polymer? tt i. wows “1; wis aes temps tls nee as os jee bee rear Flee: vat oo oo) ft. ke - Spinten Z ages oun moat oe | ale pega Chee shy ie a i : a Lai a ae aes pet cabal ehely nar ete aet eal ees ons tire oi “eh ackly = | 14. 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