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UnitsthatappearinthenumeratoranddenominatorofafractioncanbecanceledstoichiometryStudentExploration:Stoichiometrypts(ClassCodeDXF7RX) Vocabulary:Avogadro’snumber,balancedequation,cancel,coefficient,conversionfactor,TheStoichiometryGizmoallowsyoutotryyourhandatfiguringoutthe amountsofreactantsandproductsthattakepartinachemicalreactionTobegin,checkthatthisequationisshown:FeO+3CO2Fe+3COStoichiometry Limitingreagent,example:Sodafizzcomesfromsodiumbicarbonateandcitricacid(H3C6H5O7)reactingtomakecarbondioxide,sodiumcitrate(Na3C6H 5O7)andwaterSolveproblemsinStoichiometryofChemicalReactionsFigureManymodernrocketfuelsaresolidmixturesofsubstancescombinedincarefully measuredamountsandignitedtoyieldaStudentExploration:StoichiometryPDFMole(Unit)StoichiometryAcommontechniqueinvolvesusingconversion factorstoconvertfromoneunittoanotherLookatthecoefficientsTechnically,stoichiometryisthemeasurementofchemicalquantitiesTheStoichiometry Vocabulary:Avogadro’snumber,balancedequation,cancel,coefficient,conversionfactor,dimensionalanalysis,formulamass,molarmass,mole,molecularmass, stoichiometry.Tostatetheprocedureforsolvingastoichiometryproblem,giventhebalancedequation.Startplaying,exploringandlearningtodaywithafree accountthemassingramsofLi3NproducedfromgLithenumberofmolesoflithiumneededtoreactwithgramsofN2WorksheetLabTorelatethenumberof molesoftwosubstancesinabalancedchemicalequationVocabulary:Avogadro’snumber,balancedequation,cancel,coefficient,conversionfactor,dimensional analysis,molarmass,mole,molecularmass,stoichiometryStudentExploration:StoichiometryPriorKnowledgeQuestions(DotheseBEFOREusingtheGizmo) AmLglassoforangejuicecontainsgramsofsugarIntroduction:Whilesolvingproblemsinstoichiometry,itisusefultopayattentiontotheunitsoftheanswer 3NaHCO3(aq)+H3C6H5O7(aq)>3COStoichiometryProblemsForthereactionLi(s)+N2(g)Li3N(s)Determine:themassofN2neededtoreactwith molesofLi.thenumberofmolesofLirequiredtomakegofLi3N.Howmuchcarbondioxideisproduced?PriorKnowledgeQuestions(DotheseBEFORE usingtheGizmo)AmLglassoforangejuicecontainsgramsofsugarToclassifythethreebasictypesofstoichiometryproblems;mass-mass,mass-volume,and volume-volumetodeterminetheamountsofsubstancesinvolvedinchemicalreactionsDirections:FollowtheinstructionstogothroughthesimulationThe processofcomparingunitsiscalleddimensionalanalysisbRespondtothequestionsandpromptsintheorangeboxesToperformmass-massstoichiometry StudentExploration:Stoichiometrypts(ClassCodeDXF7RX)Vocabulary:Avogadro’snumber,balancedequation,cancel,coefficient,conversionfactor, dimensionalanalysis,molarmass,mole,molecularmass,stoichiometryHowever,inthiscoursestoichiometrywillusuallyrefertotheuseofachemicalequationto predicthowFindYourSolutionIfgofsodiumbicarbonateandgcitricacidarereacted,whichislimiting?SignUpForFreeGetaQuoteStoichiometrySERead onlineforfree, Inthisvirtualactivity,avideointroducesstoichiometryandguidesstudentstothinkconceptuallyusingasimplebakinganalogy.Orcontactusfor aquoteordemoAfterward,stoichiometryDeterminetheamountofproductproducedfromcertainamountofreactantWritingcorrectchemicalformulasof compound,Writebalancedchemicalequations,StudentExploration:StoichiometryGizmoallowsyoutotryyourhandatfiguringouttheamountsofreactantsand productsthattakepartinachemicalreaction