CHEM 311: EXAM I QUESTIONS AND
CORRECT ANSWERS
nanoA2-A2Ans--10^-9
centiA2-A2Ans--10^-2
milliA2-A2Ans--10^-3
kiloA2-A2Ans--10^3
microA2-A2Ans--10^-6
megaA2-A2Ans--10^6
picoA2-A2Ans--10^-12
molarityA2-A2Ans--molesA2ofA2soluteA2perA2literA2ofA2solution
molalityA2-A2Ans--molesA2ofA2soluteA2perA2kilogramA2ofA2solvent
densityA2-A2Ans--massA2ofA2aA2substanceA2perA2unitA2volume
weightA2percentA2-A2Ans--
massA2ofA2aA2soluteA2perA2massA2ofA2theA2totalA2solution,A2multipliedA2byA2100
volumeA2percentA2-A2Ans--
volumeA2ofA2aA2soluteA2perA2volumeA2ofA2theA2totalA2solution,A2multipliedA2byA2100
partsA2perA2millionA2-A2Ans--microgramsA2ofA2analyteA2perA2gramA2(orA2mL)A2ofA2sample
partsA2perA2billionA2-A2Ans--nanogramsA2ofA2analyteA2perA2gramA2(orA2mL)A2ofA2sample
formalA2concentrationA2-A2Ans--
theA2totalA2concentrationA2(expressedA2inA2unitsA2ofA2molarity)A2ofA2allA2speciesA2inA2soluti
onA2forA2aA2givenA2substance
aliquotA2-A2Ans--aA2portionA2ofA2aA2sample
standardA2solutionA2-A2Ans--aA2solutionA2whoseA2compositionA2isA2knownA2accurately
analyteA2-A2Ans--substanceA2beingA2measuredA2orA2detected
CORRECT ANSWERS
nanoA2-A2Ans--10^-9
centiA2-A2Ans--10^-2
milliA2-A2Ans--10^-3
kiloA2-A2Ans--10^3
microA2-A2Ans--10^-6
megaA2-A2Ans--10^6
picoA2-A2Ans--10^-12
molarityA2-A2Ans--molesA2ofA2soluteA2perA2literA2ofA2solution
molalityA2-A2Ans--molesA2ofA2soluteA2perA2kilogramA2ofA2solvent
densityA2-A2Ans--massA2ofA2aA2substanceA2perA2unitA2volume
weightA2percentA2-A2Ans--
massA2ofA2aA2soluteA2perA2massA2ofA2theA2totalA2solution,A2multipliedA2byA2100
volumeA2percentA2-A2Ans--
volumeA2ofA2aA2soluteA2perA2volumeA2ofA2theA2totalA2solution,A2multipliedA2byA2100
partsA2perA2millionA2-A2Ans--microgramsA2ofA2analyteA2perA2gramA2(orA2mL)A2ofA2sample
partsA2perA2billionA2-A2Ans--nanogramsA2ofA2analyteA2perA2gramA2(orA2mL)A2ofA2sample
formalA2concentrationA2-A2Ans--
theA2totalA2concentrationA2(expressedA2inA2unitsA2ofA2molarity)A2ofA2allA2speciesA2inA2soluti
onA2forA2aA2givenA2substance
aliquotA2-A2Ans--aA2portionA2ofA2aA2sample
standardA2solutionA2-A2Ans--aA2solutionA2whoseA2compositionA2isA2knownA2accurately
analyteA2-A2Ans--substanceA2beingA2measuredA2orA2detected