CHEM 210 Final MP
vg vg vg
Studyvgonlinevgatvghttps://quizlet.com/
_feokzu
CHEM 210 FINAL: MASTERING CHEM Q AND A
Highest:vgNh3vgSbH3vgAsH3vgPH3vg-vganswer--
Thevghydridesvgofvggroupvg5AvgarevgNH3,vgPH3,vgAsH3,vgandvgSbH3.vgArrangevgthemvgfromvghighestvgtovglowestvgboilingvgp
oint.
Dispersionvg-vganswer--WhatvgisvgthevgstrongestvgtypevgofvgintermolecularvgforcevgpresentvginvgH2?
Co2vg-vganswer--Identifyvgthevgcompoundvgthatvgdoesvgnotvghavevgdipole-dipolevgforcesvgasvgitsvgstrongestvgforce.
1vgandvg2vg-vganswer--Whichvgofvgthevgfollowingvgmustvgbevgovercomevgduringvgthevgboilingvgofvgacetonitrile,vgCH3CN?
1.vgdispersionvgforces
2.vgdipole-dipolevgforces
3.vghydrogenvgbonds
I>III>IIvg-vganswer--Placevgthevgfollowingvgcompoundsvginvgordervgofvgdecreasingvgstrengthvgofvgintermolecularvgforces.
I.vgCH3CH2CH2CH2CH2CH3vgII.vg(CH3)3CCH3vgIII.vg(CH3)3CCH2CH3
Ion-dipolevgforcevg-vganswer--WhatvgtypevgofvgintermolecularvgforcevgcausesvgthevgdissolutionvgofvgKFvginvgwater?
dispersionvgforcesvgandvgdipole-dipolevgforcesvg-vganswer--WhatvgIntervgmolecularvgforcesvgarevgpresentvgin:vgHBr
dispersionvgforces,vgdipole-dipolevgforcesvgandvghydrogenvgbondingvg-vganswer--
WhatvgIntervgmolecularvgforcesvgarevgpresentvgin:vgCH3COOH
onlyvgdispersionvgforcesvg-vganswer--WhatvgIntervgmolecularvgforcesvgarevgpresentvgin:vgBr2
onlyvgdispersionvgforcesvg-vganswer--WhatvgIntervgmolecularvgforcesvgarevgpresentvgin:vgHe
Xevg-vganswer--Basedvgonvgthevgexpectedvgintermolecularvgforces,vgwhichvgnoblevggasvghasvgthevghighestvgboilingvgpoint?
Ar
Ne
Xe
Kr
CH3CH2CH2CH3vg-vganswer--Choosevgthevgsubstancevgwithvgthevglowestvgsurfacevgtension.
C6H6
CH3CH2CH2CH3
CH3OH
H2O
(CH3)2CO
CF4vg>vgPF5vg>vgBrF3vg-vganswer--
Placevgthevgfollowingvgsubstancesvginvgordervgofvgdecreasingvgvaporvgpressurevgatvgavggivenvgtemperature.
PF5vgBrF3vgCF4
1vg/
vg32
, CHEM 210 Final MP
vg vg vg
Studyvgonlinevgatvghttps://quizlet.com/
_feokzu
Cal2vg-vganswer--Choosevgthevgsubstancevgwithvgthevglowestvgvaporvgpressurevgatvgavggivenvgtemperature.
Ar
CO2
CaI2
BF3
PF5
44.4vgkj/molvg-vganswer--
Propanolvghasvgavgnormalvgboilingvgpointvgofvg97.8°C.vgAtvg400vgtorr,vgitvghasvgavgboilingvgpointvgofvg82.0°C.vgWhatvgisvgthevgh
eatvgofvgvaporization?
24.9vgkJ/mol
38.7vgkJ/mol
12.3vgkJ/mol
44.4vgkJ/mol
52.7vgkJ/mol
3.50vg×vg104vgJvg-vganswer--Calculatevgthevgenergyvgthatvgisvgrequiredvgtovgchangevg50.0vggvgicevgatvg-
30.0°Cvgtovgavgliquidvgatvg73.0°C.vgThevgheatvgofvgfusionvg=vg333vgJ/g,vgthevgheatvgofvgvaporizationvg=vg2256vgJ/
g,vgandvgthevgspecificvgheatvgcapacitiesvgofvgicevg=vg2.06vgJ/gKvgandvgliquidvgwatervg=vg4.184vgJ/gK.
1.31vg×vg105vgJ
2.14vg×vg104vgJ
1.66vg×vg104vgJ
3.50vg×vg104vgJ
6.59vg×vg103vgJ
67.7vgkJvg-vganswer--
Howvgmuchvgenergyvgmustvgbevgremovedvgfromvgavg125vggvgsamplevgofvgbenzenevg(molarvgmass=vg78.11vgg/
mol)vgatvg425.0vgKvgtovgliquifyvgthevgsamplevgandvglowervgthevgtemperaturevgtovg335.0vgK?
vgThevgfollowingvgphysicalvgdatavgmayvgbevguseful.
ΔHvapvg=vg33.9vgkJ/mol
ΔHfusvg=vg9.8vgkJ/mol
Cliqvg=vg1.73vgJ/g°C
Cgasvg=vg1.06vgJ/g°C
Csolvg=vg1.51vgJ/g°C
Tmeltingvg=vg279.0vgK
Tboilingvg=vg353.0vgK
CvgandvgDvgonlyvg-vganswer--
Avghypotheticalvgsubstancevghasvgavgmeltingvgpointvgofvg−10°Cvgandvgavgboilingvgpointvgofvg155°C.vgIfvgthisvgsubstancevgisvgh
eatedvgfromvg2°Cvgtovgthevggasvgatvg155°C,vgwhichvgofvgthevgfollowingvgwouldvgbevgusedvginvgthevgcalculation:
1.vgspecificvgheatvgcapacityvgofvgthevgsolid
2.vgheatvgofvgfusion
3.vgspecificvgheatvgcapacityvgofvgthevgliquid
4.vgheatvgofvgvaporization
5.vgspecificvgheatvgcapacityvgofvgthevggas
2vg/
vg32
, CHEM 210 Final MP
vg vg vg
Studyvgonlinevgatvghttps://quizlet.com/
_feokzu
Thevgsolidvgwillvgsublimevgintovgavggasvg-vganswer--
Avgsubstancevghasvgavgtriplevgpointvgatvg−24.5vg∘Cvgandvg225vgmmHg.vgWhatvgisvgmostvglikelyvgtovghappenvgtovgavgsolidvgsam
plevgofvgthevgsubstancevgasvgitvgisvgwarmedvgfromvg−35vg∘Cvgtovg5vg∘Cvgatvgavgpressurevgofvg210vgmmHg?
Nothingvg(thevgsolidvgwillvgremainvgasvgavgsolid).
Thevgsolidvgwillvgsublimevgintovgavggas.
Thevgsolidvgwillvgmeltvgintovgavgliquid.
29.8vgkJ/molvg-vganswer--
Thevgvaporvgpressurevgofvgavgsubstancevgisvgmeasuredvgovervgavgrangevgofvgtemperatures.vgAvgplotvgofvgthevgnaturalvglogvgo
fvgthevgvaporvgpressurevgversusvgthevginversevgofvgthevgtemperaturevg(invgKelvin)vgproducesvgavgstraightvglinevgwithvgavgslop
evgofvg−3.58×103K.
Whatvgisvgthevgenthalpyvgofvgvaporizationvgofvgthevgsubstance?
29.8vgkJ/mol
2.32×1023kJ/mol
0.431vgkJ/mol
294vgkJ/mol
lithiumvgiodide,vgLiI
sodiumvgfluoride,vgNaFvg
potassiumvgbromide,vgKBrvg-vganswer--
Fivevgdifferentvgsubstancesvgarevggivenvgtovgyouvgtovgbevgdissolvedvginvgwater.vgWhichvgsubstancesvgarevgmostvglikelyvgtovg
undergovgdissolutionvginvgwater?
lithiumvgiodide,vgLiI
sodiumvgfluoride,vgNaFvg
potassiumvgbromide,vgKBr
benzene,vgC6H6
hexane,vgC6H14
Dipole-dipole:
C2H5OH
HF
Ion-dipolevgforces:
CuSO4
CaCl2vg-vganswer--
Thevgfollowingvgsubstancesvgdissolvevgwhenvgaddedvgtovgwater.vgClassifyvgthevgsubstancesvgaccordingvgtovgthevgstronges
tvgsolute-solventvginteractionvgthatvgwillvgoccurvgbetweenvgthevggivenvgsubstancesvgandvgwatervgduringvgdissolution.
C2H5OH
HF
CuSO4
CaCl2
ethylenevgglycolvg(HOCH2CH2OH)vg-vganswer--
Whichvgofvgthevgfollowingvgcompoundsvgwillvgbevgmostvgsolublevginvgethanolvg(CH3CH2OH)?
hexanevg(CH3CH2CH2CH2CH2CH3)
ethylenevgglycolvg(HOCH2CH2OH)
trimethylaminevg(N(CH3)3)
acetonevg(CH3COCH3)
Nonevgofvgthesevgcompoundsvgshouldvgbevgsolublevginvgethanol.
3vg/
vg32
, CHEM 210 Final MP
vg vg vg
Studyvgonlinevgatvghttps://quizlet.com/
_feokzu
CH3CH2CH2CH2CH3vg-vganswer--
Cyclohexanevg(C6H12)vgisvgavghydrocarbonvg(avgsubstancevgcontainingvgonlyvgcarbonvgandvghydrogen)vgliquid.vgWhichvgo
fvgthevgfollowingvgwillvgmostvglikelyvgdissolvevginvgcyclohexanevgtovgformvgavgsolution?
CH2Cl2
HI
NaBr
CH3CH2CH2CH2CH3
Whenvg|ΔHsolute|vgisvgclosevgtovg|ΔHhydration|vg-vganswer--
ChoosevgthevgsituationvgbelowvgthatvgwouldvgresultvginvgavgΔHsolutionvgnearvg0.
Whenvg|ΔHsolute|vg<vg|ΔHhydration|
Whenvg|ΔHsolvent|vg>>vg|ΔHsolute|
Whenvg|ΔHsolute|vgisvgclosevgtovg|ΔHhydration|
Whenvg|ΔHsolute|vg>vg|ΔHhydration|
Therevgisn'tvgenoughvginformationvgtovgdetermine.
|ΔHsolute|>|ΔHhydrationvg-vganswer--
WhatvgcanvgyouvgconcludevgaboutvgthevgrelativevgmagnitudesvgofvgthevgabsolutevgvaluesvgofvgΔHsolutevgandvgΔHhydration
,vgwherevgΔHsolutevgisvgthevgheatvgassociatedvgwithvgseparatingvgthevgsolutevgparticlesvgandvgΔHhydrationvgisvgthevgheatvga
ssociatedvgwithvgdissolvingvgthevgsolutevgparticlesvginvgwater?
|ΔHsolute|>|ΔHhydration|
|ΔHsolute|<|ΔHhydration|
|ΔHsolute|=|ΔHhydration|
nonevgofvgthevgabovevg(nothingvgcanvgbevgconcludedvgaboutvgthevgrelativevgmagnitudes)
COvg-vganswer--WhichvgofvgthevgfollowingvgshouldvghavevgthevglargestvgHenry'svglawvgconstantvg(kH)vginvgwater?
Xe
Cl2
CO
CO2
CH3CH3
49.4vgmgvg-vganswer--
Calculatevgthevgmassvgofvgoxygenvg(invgmg)vgdissolvedvginvgavg5.00vgLvgbucketvgofvgwatervgexposedvgtovgavgpressurevgofvg1.1
3vgatmvgofvgair.vgAssumevgthevgmolevgfractionvgofvgoxygenvginvgairvgtovgbevg0.21vggivenvgthatvgkHvgforvgO2vgisvg1.3vg×vg10-
3vgM/vgatmvgatvgthisvgtemperature.
9.87vgmg
23.5vgmg
49.4vgmg
13.7vgmg
27.3vgmg
0.0528vgMvg-vganswer--
Avgsolutionvgisvg0.0480vgmvgLiF.vgWhatvgisvgthevgmolarityvgofvgthevgsolutionvgifvgthevgdensityvgisvg1.10vgg/mL?
0.0480vgM
4vg/
vg32
vg vg vg
Studyvgonlinevgatvghttps://quizlet.com/
_feokzu
CHEM 210 FINAL: MASTERING CHEM Q AND A
Highest:vgNh3vgSbH3vgAsH3vgPH3vg-vganswer--
Thevghydridesvgofvggroupvg5AvgarevgNH3,vgPH3,vgAsH3,vgandvgSbH3.vgArrangevgthemvgfromvghighestvgtovglowestvgboilingvgp
oint.
Dispersionvg-vganswer--WhatvgisvgthevgstrongestvgtypevgofvgintermolecularvgforcevgpresentvginvgH2?
Co2vg-vganswer--Identifyvgthevgcompoundvgthatvgdoesvgnotvghavevgdipole-dipolevgforcesvgasvgitsvgstrongestvgforce.
1vgandvg2vg-vganswer--Whichvgofvgthevgfollowingvgmustvgbevgovercomevgduringvgthevgboilingvgofvgacetonitrile,vgCH3CN?
1.vgdispersionvgforces
2.vgdipole-dipolevgforces
3.vghydrogenvgbonds
I>III>IIvg-vganswer--Placevgthevgfollowingvgcompoundsvginvgordervgofvgdecreasingvgstrengthvgofvgintermolecularvgforces.
I.vgCH3CH2CH2CH2CH2CH3vgII.vg(CH3)3CCH3vgIII.vg(CH3)3CCH2CH3
Ion-dipolevgforcevg-vganswer--WhatvgtypevgofvgintermolecularvgforcevgcausesvgthevgdissolutionvgofvgKFvginvgwater?
dispersionvgforcesvgandvgdipole-dipolevgforcesvg-vganswer--WhatvgIntervgmolecularvgforcesvgarevgpresentvgin:vgHBr
dispersionvgforces,vgdipole-dipolevgforcesvgandvghydrogenvgbondingvg-vganswer--
WhatvgIntervgmolecularvgforcesvgarevgpresentvgin:vgCH3COOH
onlyvgdispersionvgforcesvg-vganswer--WhatvgIntervgmolecularvgforcesvgarevgpresentvgin:vgBr2
onlyvgdispersionvgforcesvg-vganswer--WhatvgIntervgmolecularvgforcesvgarevgpresentvgin:vgHe
Xevg-vganswer--Basedvgonvgthevgexpectedvgintermolecularvgforces,vgwhichvgnoblevggasvghasvgthevghighestvgboilingvgpoint?
Ar
Ne
Xe
Kr
CH3CH2CH2CH3vg-vganswer--Choosevgthevgsubstancevgwithvgthevglowestvgsurfacevgtension.
C6H6
CH3CH2CH2CH3
CH3OH
H2O
(CH3)2CO
CF4vg>vgPF5vg>vgBrF3vg-vganswer--
Placevgthevgfollowingvgsubstancesvginvgordervgofvgdecreasingvgvaporvgpressurevgatvgavggivenvgtemperature.
PF5vgBrF3vgCF4
1vg/
vg32
, CHEM 210 Final MP
vg vg vg
Studyvgonlinevgatvghttps://quizlet.com/
_feokzu
Cal2vg-vganswer--Choosevgthevgsubstancevgwithvgthevglowestvgvaporvgpressurevgatvgavggivenvgtemperature.
Ar
CO2
CaI2
BF3
PF5
44.4vgkj/molvg-vganswer--
Propanolvghasvgavgnormalvgboilingvgpointvgofvg97.8°C.vgAtvg400vgtorr,vgitvghasvgavgboilingvgpointvgofvg82.0°C.vgWhatvgisvgthevgh
eatvgofvgvaporization?
24.9vgkJ/mol
38.7vgkJ/mol
12.3vgkJ/mol
44.4vgkJ/mol
52.7vgkJ/mol
3.50vg×vg104vgJvg-vganswer--Calculatevgthevgenergyvgthatvgisvgrequiredvgtovgchangevg50.0vggvgicevgatvg-
30.0°Cvgtovgavgliquidvgatvg73.0°C.vgThevgheatvgofvgfusionvg=vg333vgJ/g,vgthevgheatvgofvgvaporizationvg=vg2256vgJ/
g,vgandvgthevgspecificvgheatvgcapacitiesvgofvgicevg=vg2.06vgJ/gKvgandvgliquidvgwatervg=vg4.184vgJ/gK.
1.31vg×vg105vgJ
2.14vg×vg104vgJ
1.66vg×vg104vgJ
3.50vg×vg104vgJ
6.59vg×vg103vgJ
67.7vgkJvg-vganswer--
Howvgmuchvgenergyvgmustvgbevgremovedvgfromvgavg125vggvgsamplevgofvgbenzenevg(molarvgmass=vg78.11vgg/
mol)vgatvg425.0vgKvgtovgliquifyvgthevgsamplevgandvglowervgthevgtemperaturevgtovg335.0vgK?
vgThevgfollowingvgphysicalvgdatavgmayvgbevguseful.
ΔHvapvg=vg33.9vgkJ/mol
ΔHfusvg=vg9.8vgkJ/mol
Cliqvg=vg1.73vgJ/g°C
Cgasvg=vg1.06vgJ/g°C
Csolvg=vg1.51vgJ/g°C
Tmeltingvg=vg279.0vgK
Tboilingvg=vg353.0vgK
CvgandvgDvgonlyvg-vganswer--
Avghypotheticalvgsubstancevghasvgavgmeltingvgpointvgofvg−10°Cvgandvgavgboilingvgpointvgofvg155°C.vgIfvgthisvgsubstancevgisvgh
eatedvgfromvg2°Cvgtovgthevggasvgatvg155°C,vgwhichvgofvgthevgfollowingvgwouldvgbevgusedvginvgthevgcalculation:
1.vgspecificvgheatvgcapacityvgofvgthevgsolid
2.vgheatvgofvgfusion
3.vgspecificvgheatvgcapacityvgofvgthevgliquid
4.vgheatvgofvgvaporization
5.vgspecificvgheatvgcapacityvgofvgthevggas
2vg/
vg32
, CHEM 210 Final MP
vg vg vg
Studyvgonlinevgatvghttps://quizlet.com/
_feokzu
Thevgsolidvgwillvgsublimevgintovgavggasvg-vganswer--
Avgsubstancevghasvgavgtriplevgpointvgatvg−24.5vg∘Cvgandvg225vgmmHg.vgWhatvgisvgmostvglikelyvgtovghappenvgtovgavgsolidvgsam
plevgofvgthevgsubstancevgasvgitvgisvgwarmedvgfromvg−35vg∘Cvgtovg5vg∘Cvgatvgavgpressurevgofvg210vgmmHg?
Nothingvg(thevgsolidvgwillvgremainvgasvgavgsolid).
Thevgsolidvgwillvgsublimevgintovgavggas.
Thevgsolidvgwillvgmeltvgintovgavgliquid.
29.8vgkJ/molvg-vganswer--
Thevgvaporvgpressurevgofvgavgsubstancevgisvgmeasuredvgovervgavgrangevgofvgtemperatures.vgAvgplotvgofvgthevgnaturalvglogvgo
fvgthevgvaporvgpressurevgversusvgthevginversevgofvgthevgtemperaturevg(invgKelvin)vgproducesvgavgstraightvglinevgwithvgavgslop
evgofvg−3.58×103K.
Whatvgisvgthevgenthalpyvgofvgvaporizationvgofvgthevgsubstance?
29.8vgkJ/mol
2.32×1023kJ/mol
0.431vgkJ/mol
294vgkJ/mol
lithiumvgiodide,vgLiI
sodiumvgfluoride,vgNaFvg
potassiumvgbromide,vgKBrvg-vganswer--
Fivevgdifferentvgsubstancesvgarevggivenvgtovgyouvgtovgbevgdissolvedvginvgwater.vgWhichvgsubstancesvgarevgmostvglikelyvgtovg
undergovgdissolutionvginvgwater?
lithiumvgiodide,vgLiI
sodiumvgfluoride,vgNaFvg
potassiumvgbromide,vgKBr
benzene,vgC6H6
hexane,vgC6H14
Dipole-dipole:
C2H5OH
HF
Ion-dipolevgforces:
CuSO4
CaCl2vg-vganswer--
Thevgfollowingvgsubstancesvgdissolvevgwhenvgaddedvgtovgwater.vgClassifyvgthevgsubstancesvgaccordingvgtovgthevgstronges
tvgsolute-solventvginteractionvgthatvgwillvgoccurvgbetweenvgthevggivenvgsubstancesvgandvgwatervgduringvgdissolution.
C2H5OH
HF
CuSO4
CaCl2
ethylenevgglycolvg(HOCH2CH2OH)vg-vganswer--
Whichvgofvgthevgfollowingvgcompoundsvgwillvgbevgmostvgsolublevginvgethanolvg(CH3CH2OH)?
hexanevg(CH3CH2CH2CH2CH2CH3)
ethylenevgglycolvg(HOCH2CH2OH)
trimethylaminevg(N(CH3)3)
acetonevg(CH3COCH3)
Nonevgofvgthesevgcompoundsvgshouldvgbevgsolublevginvgethanol.
3vg/
vg32
, CHEM 210 Final MP
vg vg vg
Studyvgonlinevgatvghttps://quizlet.com/
_feokzu
CH3CH2CH2CH2CH3vg-vganswer--
Cyclohexanevg(C6H12)vgisvgavghydrocarbonvg(avgsubstancevgcontainingvgonlyvgcarbonvgandvghydrogen)vgliquid.vgWhichvgo
fvgthevgfollowingvgwillvgmostvglikelyvgdissolvevginvgcyclohexanevgtovgformvgavgsolution?
CH2Cl2
HI
NaBr
CH3CH2CH2CH2CH3
Whenvg|ΔHsolute|vgisvgclosevgtovg|ΔHhydration|vg-vganswer--
ChoosevgthevgsituationvgbelowvgthatvgwouldvgresultvginvgavgΔHsolutionvgnearvg0.
Whenvg|ΔHsolute|vg<vg|ΔHhydration|
Whenvg|ΔHsolvent|vg>>vg|ΔHsolute|
Whenvg|ΔHsolute|vgisvgclosevgtovg|ΔHhydration|
Whenvg|ΔHsolute|vg>vg|ΔHhydration|
Therevgisn'tvgenoughvginformationvgtovgdetermine.
|ΔHsolute|>|ΔHhydrationvg-vganswer--
WhatvgcanvgyouvgconcludevgaboutvgthevgrelativevgmagnitudesvgofvgthevgabsolutevgvaluesvgofvgΔHsolutevgandvgΔHhydration
,vgwherevgΔHsolutevgisvgthevgheatvgassociatedvgwithvgseparatingvgthevgsolutevgparticlesvgandvgΔHhydrationvgisvgthevgheatvga
ssociatedvgwithvgdissolvingvgthevgsolutevgparticlesvginvgwater?
|ΔHsolute|>|ΔHhydration|
|ΔHsolute|<|ΔHhydration|
|ΔHsolute|=|ΔHhydration|
nonevgofvgthevgabovevg(nothingvgcanvgbevgconcludedvgaboutvgthevgrelativevgmagnitudes)
COvg-vganswer--WhichvgofvgthevgfollowingvgshouldvghavevgthevglargestvgHenry'svglawvgconstantvg(kH)vginvgwater?
Xe
Cl2
CO
CO2
CH3CH3
49.4vgmgvg-vganswer--
Calculatevgthevgmassvgofvgoxygenvg(invgmg)vgdissolvedvginvgavg5.00vgLvgbucketvgofvgwatervgexposedvgtovgavgpressurevgofvg1.1
3vgatmvgofvgair.vgAssumevgthevgmolevgfractionvgofvgoxygenvginvgairvgtovgbevg0.21vggivenvgthatvgkHvgforvgO2vgisvg1.3vg×vg10-
3vgM/vgatmvgatvgthisvgtemperature.
9.87vgmg
23.5vgmg
49.4vgmg
13.7vgmg
27.3vgmg
0.0528vgMvg-vganswer--
Avgsolutionvgisvg0.0480vgmvgLiF.vgWhatvgisvgthevgmolarityvgofvgthevgsolutionvgifvgthevgdensityvgisvg1.10vgg/mL?
0.0480vgM
4vg/
vg32
