新加坡O水准化学考试大纲

CHEMISTRYGCEOrdinaryLevel(Syllabus5068)CONTENTSPAGENOTES....................................................................................................................1Chemistry5068Introduction..................................................................................................2Aims.............................................................................................................2AssessmentObjectives................................................................................3SchemeofAssessment...............................................................................4SubjectContent...........................................................................................5MathematicalRequirements........................................................................17DataSheet...................................................................................................18PracticalAssessment...................................................................................19NotesforuseinQualitativeAnalysis...........................................................22ITUsage......................................................................................................23GlossaryofTerms........................................................................................255068CHEMISTRYOLEVEL(2007)1NOTESNomenclatureTheproposalsin‘Signs,SymbolsandSystematics(TheAssociationforScienceEducationCompanionto5-16Science,1995)’andtherecommendationsonterms,unitsandsymbolsin‘BiologicalNomenclature(2000)’publishedbytheInstituteofBiology,inconjunctionwiththeASE,willgenerallybeadopted.ReferenceshouldbemadetothejointstatementonchemicalnomenclatureissuedbytheGCEboards.Inparticular,thetraditionalnamessulphate,sulphite,nitrate,nitrite,sulphurousandnitrousacidswillbeusedinquestionpapers.Itisintendedthat,inordertoavoiddifficultiesarisingoutoftheuseoflasthesymbolforlitre,useofdm3inplaceoflorlitrewillbemade.Inchemistry,fullstructuralformulae(displayedformulae)inanswersshouldshowindetailboththerelativeplacingofatomsandthenumberofbondsbetweenatoms.Hence-CONH2and-CO2Harenotsatisfactoryasfullstructuralformulae,althougheitheroftheusualsymbolsforthebenzeneringisacceptable.Units,significantfiguresCandidatesshouldbeawarethatmisuseofunitsand/orsignificantfigures,i.e.failuretoquoteunitswherenecessary,theinclusionofunitsinquantitiesdefinedasratiosorquotinganswerstoaninappropriatenumberofsignificantfigures,isliabletobepenalised.5068CHEMISTRYOLEVEL(2007)2CHEMISTRYGCEORDINARYLEVEL(Syllabus5068)INTRODUCTIONThissyllabusisdesignedtoplacelessemphasisonfactualmaterialandgreateremphasisontheunderstandingandapplicationofscientificconceptsandprinciples.Thisapproachhasbeenadoptedinrecognitionoftheneedforstudentstodevelopskillsthatwillbeoflongtermvalueinanincreasinglytechnologicalworldratherthanfocusingonlargequantitiesoffactualmaterial,whichmayhaveonlyshorttermrelevance.AIMSThesearenotlistedinorderofpriority.Theaimsareto:1.provide,throughwelldesignedstudiesofexperimentalandpracticalchemistry,aworthwhileeducationalexperienceforallstudents,whetherornottheygoontostudysciencebeyondthisleveland,inparticular,toenablethemtoacquiresufficientunderstandingandknowledgeto1.1becomeconfidentcitizensinatechnologicalworld,abletotakeordevelopaninformedinterestinmattersofscientificimport;1.2recognisetheusefulness,andlimitations,ofscientificmethodandtoappreciateitsapplicabilityinotherdisciplinesandineverydaylife;1.3besuitablypreparedandstimulatedforstudiesbeyondOrdinaryLevelinChemistry,inappliedsciencesorinscience-dependentvocationalcourses.2.developabilitiesandskillsthat2.1arerelevanttothestudyandpracticeofscience;2.2areusefulineverydaylife;2.3encourageefficientandsafepractice;2.4encourageeffectivecommunication.3.developattitudesrelevanttosciencesuchas3.1accuracyandprecision;3.2objectivity;3.3integrity;3.4enquiry;3.5initiative;3.6inventiveness.4.stimulateinterestinandcarefortheenvironment.5.promoteanawarenessthat5.1thestudyandpracticeofscienceareco-operativeandcumulativeactivities,andaresubjecttosocial,economic,technological,ethicalandculturalinfluencesandlimitations;5.2theapplicationsofsciencesmaybebothbeneficialanddetrimentaltotheindividual,thecommunityandtheenvironment;5.3sciencetranscendsnationalboundariesandthatthelanguageofscience,correctlyandrigorouslyapplied,isuniversal;5.4theuseofinformationtechnologyisimportantforcommunications,asanaidtoexperimentsandasatoolforinterpretationofexperimentalandtheoreticalresults.5068CHEMISTRYOLEVEL(2007)3ASSESSMENTOBJECTIVESAKnowledgewithUnderstandingStudentsshouldbeabletodemonstrateknowledgeandunderstandinginrelationto:1.scientificphenomena,facts,laws,definitions,concepts,theories;2.scientificvocabulary,terminology,conventions(includingsymbols,quantitiesandunits);3.scientificinstrumentsandapparatus,includingtechniquesofoperationandaspectsofsafety;4.scientificquantitiesandtheirdetermination;5.scientificandtechnologicalapplicationswiththeirsocial,economicandenvironmentalimplications.Thes