C3L6_student_exam_2013.pdf

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1、June2013Someofthematerialinthisbookletmightbefamiliartoyou,butotherpartsmaybecompletelynew.ThequestionsaredesignedtobemorechallengingthanthoseontypicalASpapers,butyoushouldstillbeabletoattemptthem.Useyourscientificskillstoworkthroughtheproblemslogically.If

2、youdobecomestuckononepartofaquestion,otherpartsmightstillbeaccessible,sodonotgiveup.Goodluck!•Thetimeallowedis90mins.•Attemptallthequestions.•Writeyouranswersintheanswerbookletprovided,givingonlytheessentialstepsinanycalculations.•Specifyyouranswerstotheap

3、propriatenumberofsignificantfiguresandgivethecorrectunits.•Pleasedonotwriteintheright-handmargin.•Aperiodictableandnecessaryconstantsareincludedonthenextpage.Page14.00320.1839.958K3r.81031.30He2Ne10Ar1836Xe54Rn8618179.47Lu71L1r0319.003C5l1.47759.901426.90A

4、tBr35I85F953170.34Yb70N1o0216.0032.0678.91627.60O8S16Se34Te52Po84169.83Tm69M1d0114.0130.9774.91221.7250B8i.98NP15As33Sb51837162.76Er68F1m0012.0128.097G2e.51918.69207.2CSi1432Sn50Pb826169.43Ho67Es9910.812A6l1.93869.71214.8220T4l.37B5Ga31In49811314151617165.

5、20Dy66Cf9865.31712.42000.59Zn30Cd48Hg80–1159.83Tb65Bk97mol63.5150A7g.81796.9723Cu2947Au79152.75Gd64Cm965N8i2.781106.1495.09Pd46Pt78159.16Eu63Am95=6.022×10A58.91302.91192.2metaaonmtaoncimumcibmeasrsCo27Rh45Ir77154.0symbolSm62Pu9455.81501.071O9s0.2Fe26Ru4476

6、Pm61Np93M54n2.954Tc431R8e765.2142.44230.83Nd6092U52.00M95o4.921483.85NTheAvogadroconstantCr2474W149.01Pr59Pa9150.9492.91180.9523Nb41Ta73V141.02230.21Ce58Th904T7i.9091.2127H8f7.42922Zr40htnasedin44.9688.9L113a8*.91+Adinitcse3Sc4215Y3697587A9c89101112*La9.01

7、M24g1.32140.0887.61237.342Be4Ca20Sr38Ba56Ra88+1.008L6i.9422.9399.10285.4173C2s.911H13Na11K19Rb3755Fr87Page21.Thisquestionisabouttherecenthorse-meatscandalIntherecenthorse-meat“scandal”,somefoodswerefoundtocontainlowlevelsofhorse-meat,whichwasnotdeclaredont

8、helistofingredients.Inaddition,therewasaworrythathorse-meatfromunregulatedsourcesmaybecontaminatedwiththedrugphenylbutazone,commonlycalled‘bute’.SynthesisandAnalysisPhenylbutazonemaybesynthesizedstartingfromc