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Exam (elaborations)

CHEM 311: FINAL EXAM QUESTIONS AND CORRECT ANSWERS

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CHEM 311: FINAL EXAM QUESTIONS AND CORRECT ANSWERS

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Instrumental Analysis
Course
Instrumental Analysis








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Institution
Instrumental Analysis
Course
Instrumental Analysis

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Uploaded on
November 15, 2025
Number of pages
3
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers

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  • chem 311 final exam questions and correct answers

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CHEM 311: FINAL EXAM QUESTIONS
AND CORRECT ANSWERS
EddyA2DiffusionA2(multipleA2paths)A2-A2Ans--
moleculesA2ofA2anA2analyteA2reachA2theA2endA2ofA2aA2columnA2atA2differentA2timesA2asA2aA2
resultA2ofA2travelingA2throughA2theA2columnA2byA2pathwaysA2thatA2differA2inA2length;A2prod
ucedA2byA2variableA2pathsA2aroundA2supportA2particles

longitudinalA2diffusionA2-A2Ans--
dueA2toA2diffusionA2ofA2theA2solutesA2alongA2theA2columnA2length

mobileA2phaseA2massA2transferA2-A2Ans--
causedA2byA2differentA2ratesA2ofA2travelA2ofA2theA2solutesA2acrossA2aA2cross-
sectionA2ofA2theA2column

stationaryA2phaseA2massA2transferA2-A2Ans--
causedA2byA2diffusionA2betweenA2theA2mobileA2phaseA2andA2stationaryA2phase

gasA2-A2Ans--mobileA2phaseA2inA2gasA2chromatography

liquidA2-A2Ans--mobileA2phaseA2ofA2liquidA2chromatography

chromatographyA2-A2Ans--
separateA2compoundsA2fromA2oneA2anotherA2byA2passingA2aA2mixtureA2throughA2aA2colum
nA2thatA2retainsA2someA2compoundsA2longerA2thanA2others

adsorptionA2chromatographyA2-A2Ans--
solidA2stationaryA2phaseA2andA2aA2liquidA2orA2gaseousA2mobileA2phase;A2soluteA2isA2adsor
bedA2onA2theA2surfaceA2ofA2theA2solidA2particles

partitionA2chromatographyA2-A2Ans--
thinA2liquidA2stationaryA2phaseA2coatedA2onA2theA2surfaceA2ofA2aA2solidA2support;A2soluteA2
equilibratesA2betweenA2theA2stationaryA2liquidA2andA2theA2mobileA2phase

ionA2exchangeA2chromatographyA2-A2Ans--
featuresA2ionicA2groupsA2covalentlyA2attachedA2toA2theA2stationaryA2solidA2phase,A2whichA
2isA2usuallyA2aA2resin;A2soluteA2ionsA2areA2attractedA2toA2theA2stationaryA2phaseA2byA2elect
rostaticA2forces;A2mobileA2phaseA2isA2aA2liquid

molecularA2exclusionA2chromatographyA2-A2Ans--
separatesA2moleculesA2byA2size,A2withA2largerA2moleculesA2passingA2throughA2fastest;A2st
ationaryA2phaseA2hasA2poresA2smallA2enoughA2toA2excludeA2largeA2moleculesA2butA2notA2s
mallA2ones;A2largeA2moleculesA2streamA2pastA2withoutA2enteringA2theA2pores,A2smallA2mol
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