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Dombi Chem 103 Exam 1 Questions and Answers 2025

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Dombi Chem 103 Exam 1 Questions and Answers 2025

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CHEM103

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CHEM103

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Institution: CHEM103
Course: CHEM103

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Uploaded on: April 15, 2025
Number of pages: 2
Written in: 2024/2025
Type: Exam (elaborations)
Contains: Questions & answers

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dombi chem 103 exam 1 questions and answers 2025

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Dombi Chem 103 Exam 1 Questions and
Answers 2025
AApieceAofAshinyAmetalAwasAfoundApmAtheAedgeAofAtheAroad.ATheAmetalAwasAputAonAaA
balanceAandAhadAaAmassAofA1.325g.ATheAvolumeAwasAdeterminedAbyAdifferenceAwhenAthe
AmetalAwasAplacedAintoAaA20.00AmlAcolumnAofAoil,AwhichAwasAdisplacedAtoA34.97ml.A-

ACORRECTAANSWERS-

a)Avolume=14.97ml
b)A0.08851
possibleAmetalAdensity:Aaluminum,Azinc,Alead,AuraniumA-ACORRECTAANSWERS-
unknown
lightAchocolateAmeltsAatA88.2AdegreesAf.AWhatAwouldAthisAtemperatureAbeAifAreportedAonAb
othAtheACelsiusAscaleAandAtheAKelvinAscale?A-ACORRECTAANSWERS-31.2cA
304.4Ak
Cysteine,AC3H7NO2SAisAaAsulfurAcontainingAaminoAacidAoftenAfoundAinAtheAactiveAsiteAofAp
roteinAenzymes.AGivenAaA45.0gAsampleAofAcysteine,AhowAmanyAatomsAofAoAcanAbeA
isolated?A
a)AwriteAavocadrosAstatementA
b)AnumberAofAmolesAofAcysteineAinA45AgramsAofAcysteine
c)AnumberAofAoAatomsAinA45AgAcysteineA-ACORRECTAANSWERS-
a)A1AmoleAcysteine=6.022x10^23Amolecules=121.156g
b)A0.371
c)A4.47x10^23
eachAgoldAbuffaloAcoinAweighsA1.00AozAandAhasAfaceA=valueAofA$50.ATheApriceAofAgoldAisA$
41.65AperAgram.AHowAmuchAwouldAitAcostAtoAbuyA15AgoldAbuffaloAcoins?A1g=0.035AozA-
ACORRECTAANSWERS-17,850

AtAitsAclosestAapproachAtoAeach,AtheAplanetAmarsAinA33.9AmillionAmilesAaway.AWhatAisAtheA
correctAwayAtoAexpressAthatAinAscientificAnotation?A-ACORRECTAANSWERS-
3.39x10^7AmilesAaway
oneAmoleAofAlithiumAatomsAwouldAhaveAtheAmassAof....A-ACORRECTAANSWERS-
6.941grams
whatAwouldAbeAtrueAaboutA2.5AmolesAofAglucoseAC6H12O6?A-ACORRECTAANSWERS-
thereAwouldAbeA30AmolesAofAH
whichAareAtheAcorrectAsymbolsAforAgold,Acarbon,Amercury,AandAiron?A-
ACORRECTAANSWERS-ag,c,hg,fe

whatAnumberAplaceAshouldAyouAuseAtoAreportAaAlengthAmeasurementAbetweenA15AandA16A
centimetersAifAtheAsmallestAmarkAonAtheArulerAisA0.01AcmA-ACORRECTAANSWERS-
thousandthsAplace
whichAelementAcontainsA29AprotonsA-ACORRECTAANSWERS-cu
whichAstatementAisAnotAconsistentAwithAourAmodelAofAatomicAstructureA-
ACORRECTAANSWERS-neutronsAdontAcontributeAsignificantlyAtoAtheAmassAofAtheAatom

whichAofAtheAfollowingAisAanAextensiveAphysicalApropertyAofAmatterA-
ACORRECTAANSWERS-weight

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