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1、单分子油膜法测定分子直径（Determinationofmoleculardiameterbysinglemoleculeoilfilmmethod）JiangsuXishanHighInclassLearn...214154..ParaphCindysinglebranchsonoilmembranemethodmeasuresetbranchZizhipathFirst,thesubjectputforwardInSeniorHighSchool...Physics...NewandoldThemolecularkinetictheory...Partofthem
2、aterial...SinglemoleculeoilfilmmethodThemethodofmoleculardiameterisintroducedTolearnthispartofthestory,thoughHowever,studentsalsofindnoveltyandspiritSecret,butsufferingfromthebatonofcollegeentranceexaminationPressureisoftenonly...No...Action...ResearchThecourseisopenedforstudentsInquiry
3、learningcreatesobjectivestripsUsually,IencouragesomepeopletohavefunInterestingstudentsmakefurtherexploration,SetupafivepeopleteamandsetitdownDeterminationofmoleculesbysinglemoleculeoilfilmmethodDiameter...ThisresearchtopicTwo,inquiryandPracticeChengAfterthedeterminationofthetopic,smallc
4、ompositionTheclerksagreedtochecktheinformationfirstWhatexactlyisoleicacid?Thedatafoundthatoleicacid,thenameofthestudy..eighteenalkene....9...Acid,Itisanunsaturatedhigherfattyacid.ItsglycerideisoliveOneofthemaincomponentsofoilandotheranimalandvegetableoils.IndustrialproductsOftencontaini
5、ngsaturatedfattyacids(palmiticacid,stearicacid)7%12%.Andasmallamountofotherunsaturatedfattyacids(linoleicacid)Color,tastelessliquid,dissolvedinethanol,etherandothersolventsTouchtoolong,thecolorisdeep,istheindispensablecampofanimalfoodTheleadsalts,manganesesaltsandcobaltsaltsareusedaspai
6、ntcatalysts;copperisusedasapaintcatalystSaltisapreservativeforfishingnets;AluminumsaltcanbeusedaswaterproofagentforfabricsandsoonAndthethickeningagentofsomelubricatingoilsThestructureofC17H33COOHisCH3(CH2)7CHCH(CH2)7COOH.structurally,oleicacidmoleculescanItisdividedintotwoparts,oneparti
7、sC17H33,theotherisCOOH...COOH..ithasastrongaffinityforwater.WhentheWhenoleicaciddropsonthewater,C17H33,partofthewatercomesoutAndtheCOOHpartstaysinthewater,andtheoleicacidmoleculesstanduprightAmonolayerofoilfilmisformedonthesurfaceofthewaterThefirstexperiment:thegroupmemberslook
