CHEM 103 EXAM 1 REVIEW - UW MADISON QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

CHEM 103 EXAM 1 REVIEW - UW
MADISON QUESTIONS AND ANSWERS
WITH SOLUTIONS 2024
WhatOisOanOacid?O-OANSWEROsolutionOhasOanOexcessOofOH+Oions



WhatOisOaObase?O-OANSWEROsolutionOhasOanOexcessOofOhydroxylOionsO(OH-)



WhatOisOneutralization?O-OANSWERO-
processOwhereOacidOandObaseOareOmixedOuntilOtheyObecomeOneutralOandOtheOPHOisO7.



WhatOareOtheOtwoOproductsOofOaOneutralizationOchemicalOreaction?O-
OANSWEROwaterOandOsaltO(OTheOtypeOofOsaltOdependsOonOacidOorObaseOaddedOtoOneutralize.)




WhatOisOaOweakOacid?O-
OANSWEROanOacidOthatOonlyOpartiallyOionizesOinOanOaqueousOsolution.OThisOmeansOthatOnotOeveryOmolecul

eObreaksOapart.



pHO-OANSWEROisOaOmeasurementOofOhowOacidicOorOhowObasicOaOsolutionOis.



WhyOisOpHOimportantOtoObiology?O-OANSWEROCellsOsurviveOinOaOspecificOpHOrange.

HumanObloodOisOmaintainOatO7pHOforOhomostasis.

TheOstomachOhasOacidsOtoObreakOdownOfood.

BileOfromOtheOliverOisOaObaseOwhichObreaksOdownOfatsO&Ogrease.



WhatOisOaObuffer?O-OANSWEROaOsubstanceOtoOhelpOtoOneutralize/balanceOpHOlevels.



WhatOareOpHOindicators?O-OANSWEROTheyOareOusedOtoOtellOyouOtheOpHOvalue.

ExamplesOareOphenalpheleinOandObromthymolOblue.

,WhatOareOtheOpropertiesOofOanOacid?O-
OANSWEROtasteOsour,OconductOelectricity,Ocorrosive,OreactsOwithOmetals,OturnsOlitmusOpaperOred.




GiveOexamplesOofOacidsO-OANSWEROHCLOwhichOisOinOyourOstomack.

SulfuricOacidOwhichOisOusedOaOlotOinOindustriesOtoOmakeOfertilzers,Opaints,Oetc.O

TumsOantacidOusedOtoOneutralizeOstomachOacids.



WhatOareOsomeOusesOofObases?O-OANSWEROsoapsOandOcleaningOproducts

usedOinObatteries



WhatOareOsomeOexamplesOofObases?O-OANSWEROlyeOusedOtoOmakeOsoap.

LiquidOplummerOusedOforOcloggedOdrains.OBakingOSodaOandOBakingOpowder



WhatOisOtheOmainOneutralOsubstance?O-OANSWEROwater



HowOisOaOsaltOchemicallyOformed?O-
OANSWEROWhenOyouOaddOacidOorObaseOtoOneutralizeOaOsolutionOtheOproductsOformedOareOwaterOandOsalts

.



AOchangeOinOpHOunitsOrepresentsOaOtenfoldOchangeOinOtheOacidityOofOtheOsolutionO(logarithmicOscale).OIfOo
neOsolutionOhasOaOpHOofO1OandOaOsecondOsolutionOhasOaOpHOofO2,OtheOfirstOsolutionOisOnotOtwiceOasOacidicO
aOtheOsecondOitOisO______timesOmoreOacidic.O-OANSWEROtenO(logarithmic)



WhatOisOaOpHOscale?O-
OANSWEROaOlogarithmicOscaleOthatOindicatesOtheOpHOofOaOsolution.OItOrangesOfromO0O-O14.




OnOtheOpHOscale,OwhatOnumbersOrepresentOanOacid?O-OANSWERO0-6



OnOtheOpHOscale,OwhatOnumbersOrepresentOaObase?O-OANSWERO8-14



OnOtheOpHOscale,OwhatOnumberOrepresentsOaOneutralOsolution?O-OANSWERO7

,WhatOisOaOweakOacid?O-
OANSWEROAnOacidOthatOonlyOpartiallyOionizesO(breaksOdown)OinOaOsolution.OWeakOacidsOareOcloseOtoO7pH




WhatOisOaOweakObase?O-
OANSWEROAOweakObaseOwillOonlyOparttallyOionizeOinOaOsolution.OThisOmeansOthatOnotOeveryOmoleculeObrea

ksOapart.



WhatOisOaOchemicalOchange?O-
OANSWEROWhenOaOchangeOinOcompositionOoccursOgivingOnewOsubstancesOwithOnewOproperties.



ExampleOwhenOwoodOchangesOtoOcarbon.OWoodOandOcarbonOdoOnotOhaveOsimilarOproperties.



WHatOisOaOphysicalOchange?O-OANSWEROWhenOaOchangeOdoesONOTOchangeOtheOcomposition.



WhatOareOindicatorsOofOaOchemicalOchange?O-
OANSWEROObservationsOsuchOasOwhatOyouOsee(OcolorOchange,OprecipitantO(solidsOinOsolutions)O



Hear-boomOSmellOTaste-sour/sweetOFeel-hotOorOcold.

Also,ObubblesOindicateOgas..



WhatOisOtheOlawOofOconservationOofOmass?O-OANSWEROMassOisOnotOcreatedOnorOdestroyed.



WhatOisOaOchemicalOformula?O-OANSWERO-
chemicalOsymbolsOrepresentOmoleculesOwithOsubscriptsOtoOrepresentOtheOnumberOofOthatOelement.

NaClOrepresentsOtableOsalt.



ReactantsOareOonOtheOrightOorOleftOofOtheO->O(yield)OsignOinOaOchemicalOequation.O-OANSWEROleft



ProductsOareOonOtheOleftOorOrightOofOtheO->(yield)OsignOinOaOchemicalOequation.O-OANSWEROright



WhatOdoesOtheO->OrepresentOinOaOchemicalOequation?O-OANSWEROyieldOorOtoOproduce

, WhatOisOaOchemicalOequation?O-
OANSWEROItOrepresentsOwithOchemicalOformulasOaOchemicalOchange/reaction.




WhenOoneOmoleculeOsplitsOapartOandOswitchOplacesOthisOisOcalledOaO__Oreaction.O-
OANSWEROreplacementOtypeOofOchemicalOreaction




WhatOisOaOreactantOinOaOchemicalOequation?O-
OANSWEROTheyOareOsubstancesOthatOareOpresentObeforeOtheOchemicalOchangeOtakesOplace.OTheyOareOwha

tOyouOputOintoOtheOchemicalOreactionOtoOcauseOaOchemicalOchange.



WhatOisOaOproductOinOaOchemicalOequation?O-
OANSWEROChemicalsOthatOareOformedOduringOtheOchemicalOchange.




WhenOenergyOisOabsorbedOinOaOchemicalOreactionOitOisOaO__reaction.O-OANSWEROendothermic



WhenOenergyOisOreleasedOinOaOcheicialOreactionOitOisOaO__reaction>O-
OANSWEROexothermicO(OusuallyOinOtheOformOofOheat)




WhatOdoesOaOneutralizationOchemicalOreactionOproduce?O-OANSWEROwaterOandOsalt



AOchemicalOreactionOisOwhenOaO__OchangeOhasOoccurred.O-OANSWEROchemical



WhatOhappensOtoOtheOoldOmoleculesOinOaOchemicalOreaction?O-
OANSWEROTheyOrearrangeOintoOnewOmolecules




WhatOisOactivationOenergy?O-OANSWEROTheOenergyOneededOtoOstartOaOchemicalOreaction.



WhatOisOaOcoefficient?O-
OANSWEROTheOnumberOinOfrontOofOaOchemicalOformulaOwhichOtellsOhowOmanyOofOthatOmoleculesOisOneede

dOtoObalanceOtheOchemicalOequation.



ChemicalOreactionsOwillOproduceO-OANSWEROnewOsubstances.