IBSummerHomework Name___________________________________________Chemistry2017-2018Buonestate,chimici!Wehavetokeeptheimportantconceptsofgeneralchemistryinyourheadsoverthesummer!IsuggestwaitinguntilJulytostart(weallneedabreak,afterall)anddoingafewproblemsaweekuntilschoolstarts,becauseifyoudoitrightatthebeginningofsummeryouwon’trememberanythingonSeptember5th,thefirstdayofschool!Pleasebringthispacketcompletedtothefirstdayofclassandwewillbrieflyreviewitaswellascorrectingourfinalexamsfromthisyearandsomeotherstart-of-the-yearstuff.Remember:thesecondyearofchemistryisALOTmorefun(becausenowyouhavethebasicknowledgeandcanbegintoapplyit),butitwillbemorework.Someofyoudidn’thavetostudymuchforgeneralchemistry–don’tletthatgettoyourhead!Startoffrightbystudyingalittleeachnight.Youshouldexpecttobestudying30-60minutesminimumpernight(sometimesmore)andbereadytobeevenmoreself-driveninyourat-homestudy.IBisarewardingcourseinwhichwewillintegrateyourlearningfromothercourses,writeimpeccablelabreports,andattempttounderstandhowchemistryimpactsdailylifeevenmore!Iamgladyouaretakingthisopportunitytochallengeyourself,andIexpectyoutobringyour“A”gameeverydayforfruitfuldiscussionandextensionsofwhatwearelearning.SincewearedoingIBChemistryintwoyearsnow(likeweshould!)wewillnotbehavingtheafterschoollabnextyear,whichisaplus!Wemaydoityear2fortheHLcandidatestocatchuponextracontent…wewillsee.Civediamoasettembre!MsKlugForgetsomethingorseesomethinginpart1youdon’tthinkyou’velearned?FeelfreetoaccessyouronlineIBBookfornextyear: url:www.pearsonbacc.com/etextlogin Username:aosrchem13 Password:IBChem2015Part1:IBBookChapters1-4Review(MolesandStoichiometry,AtomicStructure,Periodicity,Bonding,andIMFs)

TheseareallIBSampleproblems–soyoucanseewhatanIBtestquestionlookslike!ANDseethatyoucanalreadydoalotoftheIBmaterial!!Whee!!

PleasenoticewhileyouaredoingtheseproblemsafewVERYkeythings: 1)Theboxesareforshowingyourwork–startpracticingNOTwritinganyanswersoutsideofthem.Youwillonlybemarkedonanswerinsidetheboxes. 2)Thenumberinbrackets([3],etc)totherightoftheboxistheamountofpoints(or“marks”asIBlikestocallthem)eachquestionisworth. 3)Noticethedifferentquestionstheyask:State,Determine,Explain,Calculate,Define,DistinguishBetween,Deduce,etc.Thesearecalled“commandterms”intheIBprogramanditwillbeimportanttoyoutostartnowwithidentifyingWHATthequestionisreallyaskingyoutodo.Iftheysaytoexplain,justifyyouranswer!Ifitsaystocalculate,showyourwork.Determine,deduce,andstatebasicallymeanjustgivetheanswer,butshowworkifneeded.We’llgooverthesetermsmoreinthefall.

2.(Notes:inpartaiii),the“electronarrangement”meanselectronconfiguration;inpartaiv)whenitsaystousethe“DataBooklet,”justlookataperiodictablefortheaverageatomicmass.)

3.(lookslikelabfinal,doesn’tit??)

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(don’tknow“allotrope”?–lookitupinchapter4!Wetalkedaboutitingeneralchembutdidnotusethevocabwordmuchifatall….you’veseenthem,though!)

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Part2:Keepmolesandstoichiometry(chapter1IB)inthebrain!(MorePracticeifyouwant–optional,butmakesureyoudoknowthisandit’sfresh!) Wewillgetbacktostoichiometryinthelatefall…butlet’snotletitoutofourheads!1.Aradioactiveformofsodiumpertechnetateisusedasabrainscanningagentinmedicaldiagnosis.Ananalysisofa0.9872gramsamplefound0.1220gramsofsodiumand0.5255gramsoftechnetium.Theremainderisoxygen.Calculatetheempiricalformulaofsodiumpertechnetate.(Usethevalueof98.907astheatomicmassofTc).2.Ifiodineisnotinaperson'sdiet,athyroidconditioncalledgoitredevelops.Iodizedsaltisallthatittakestopreventthisdisfiguringcondition.Calciumiodate,Ca(IO3)2,isaddedtotablesalttomakeiodizedsalt.a)Howmanyatomsofiodinearein0.175molesofCa(IO3)2?b)Howmanygramsofcalciumiodateareneededtosupplythismuchiodine(inparta)?

3.Considerthereaction:I2O5(g)+5CO(g)→5CO2(g)+I2(g)a)80.0gramsofiodine(V)oxide,I2O5,reactswith28.0gramsofcarbonmonoxide,CO.Determinethemassofiodinethatcouldbeproduced.

b)If,intheabovesituation,only0.160molesofiodinewasproduced:i)whatmassofiodinewasproduced?ii)whatpercentageyieldofiodinewasproduced?4.Silvernitrate,AgNO3,reactswithferricchloride,FeCl3,togivesilverchloride,AgCl,andferricnitrate,Fe(NO3)3.Inaparticularexperiment,itwasplannedtomixasolutioncontaining25.0gofAgNO3withanothersolutioncontaining45.0gofFeCl3.a)Writethechemicalequationforthereaction.b)Whichreactantisthelimitingreactant?c)WhatisthemaximumnumberofgramsofAgClthatcouldbeobtained?____________________d)Howmanygramsofthereactantinexcesswillremainafterthereactionisover?