资源描述：
《Quickstudy - Chemistry Equations and Answers.pdf》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、BarCharts,Inc.®WORLD’S#1ACADEMICOUTLINEEssentialToolforChemistryConcepts,Variables&Equations,Including.SampleProblems,!CommonPitfalls&HelpfulHintsCONTENTSPg.1BasicSkills,MathReview•Pg.2Statistics,AtomicData,ChemicalFormulaCalculations•Pg.3StoichiometryPg.
2、4GasLawCalculations,Solids&Liquids•Pg.5Thermodynamics,Acid-BaseCalculations•Pg.6EquilibriumCalculations,KineticsYoursuccessinchemistrydependsonyourabilitytosolvenumericalproblems.BASICSKILLScont.MATHREVIEWcont.HOWTOCONVERTDATAHOWTOUSELOGARITHMS&EXPONENTST
3、heunit&numericalvaluearechangedusinga•Commonlogarithm,log10:base“10.”BASICSKILLSconversionfactororequation.Denotesnumberorfunctioninpowersof10..Sample:Given,y=106,thenlog10y=6.CALCULATORSURVIVALHOWTOUSEEQUATIONS•BecomefamiliarwithyourcalculatorFORDATACONV
4、ERSION•Naturallogarithm,ln:base“e”(e=2.718281829).Denotesnumberorfunctioninpowersof“e.”beforetheexam;makesureyoucanmultiply,divide,.Sample:Convertatemperatureof45˚Cto˚FandKelvin:.Sample:Given,z=e5,thenlnz=5.add,subtractanduseallneededfunctions.Given:K=˚C+
5、273.15•Products:log(xy)=logx+logy•Calculatorsnevermakemistakes;theytakeyourinputCalculate:TemperatureinK=45˚C+273.15n(intended&accidental)andgiveananswer.•Powers:log(x)=nlog(x)=318.15K•Lookattheanswer;doesitmakesense?•Multiplication:Addexponentsfromeachte
6、rm:Given:˚F=9/5˚C+32.5x103=10(5+3)=108.•Doaquickestimatetocheckyourwork.Sample:10Calculate:Temperaturein˚F=9/5x45˚C+32.Sample:4.34x7.68/(1.05x9.8)isroughly=81+32=113˚F•Division:Subtractdenominatorexponentsfrom4x8/(1x10)or3.2;theactualanswer:3.24.numerator
7、exponents:T(K)=T(˚C)+273.15T(˚F)=9/5xT(˚C)+32.5/103=10(5-3)=102.Sample:10HOWTODOWORDPROBLEMSBoiling
2120F1000C•Squareroot:√a=a1/2water373K•Readandevaluatethequestionbeforeyoustart•Inverse:1/x=x-1pluggingnumbersintothecalculator.Body
980F370Ctemp.310K!Pitf
8、all:Yourcalculatorhasseparatekeysfor•Identifythevariables,constantsandequations.680F200C•Writeoutunitsofthevariablesandconstants.Room
293Klnx(basee),logx(base10),10xandex.temp.•Workouttheunitbeforethenumber.Freezing
