Chem 1212 Lab Final Exam Study
nn nn nn nn nn
nn Guide Latest Updated Questions With
nn nn nn nn
Detailed Verified Answers (100%
nn nn nn nn
nn
nn Correct Answers) /Already Graded A+
nn nn nn nn
nn
what nnmust nnyou nndo nnbefore nncoming nnto nnthe nnlab? nn- nnCORRECT nnANSWER-take
nnthe nnlab nnquiz, nn
nn
write nnthe nnchemical nnalert nntable nnin nnthe nnlab nnnotebook, nnreview nnthe nnchemicals
nnand nntheir
nn
hazards, nnread nnthe nnexperiment, nnprepare nnthe nnlab nnnotebook nnfor nnthe
nnexperiment
nn
which nnof nnthe nnfollowing nnitems nnof nnclothing nnare nnappropriate nnto nnwear nnin nnCHEM
nn1212 nnlab nnto nn
nn
protect nnyour nnskin nn? nn- nnCORRECT nnANSWER-lab nnapron, nnt-shirt, nnscrub
nnpants, nnjeans
nn
which nnof nnthe nnfollowing nnare nnappropriate nnto nnwear nnin nnCHEM nn1212 nnLab nnto nnprotect
nnyour nnfeet? nn-
nn
CORRECT nnANSWER-boots, nnloafers, nnor nntennis
nnshoes/sneakers
nn
where nnis nnthe nneye nnwash nnstation nnlocated? nn- nnCORRECT nnANSWER-mounted nnon
nnthe nnwall nn
nn
next nnto nnthe nnlarge
nnsink
nn
chemical nncauses nndryness, nnitching, nnor nnsensitivity nn- nnCORRECT nnANSWER-irritant nn
nn
irreversibly nndestroys nnliving nntissue nnor nnmetal nnupon nncontact nn- nnCORRECT
nnANSWER-
nn
corrosive
nn
may nncause nnharm nnthrough nningestion, nninhalation, nnor nnskin nnabsorption nn-
nnCORRECT nn
nn
ANSWER-toxic
nn
chemical nnproved nnto nncause nncancer nn- nnCORRECT nnANSWER-carcinogen nn
nn
excess nnchemicals nndisposal nnmethod nn- nnCORRECT nnANSWER-appropriate nnwaste
nncontainer nn
nn
used nnfilter nnpaper nndisposal nnmethod nn- nnCORRECT nnANSWER-trash nncan nn
nn
,reaction nnmixture nndisposal nnmethod nn- nnCORRECT nnANSWER-appropriate nnwaste
nncontainer nn
nn
cracked nnor nnchipped nnbeaker nndisposal nnmethod nn- nnCORRECT nnANSWER-broken
nnglass nnbox nn
nn
what nnif nna nnperson's nnhair nncatches nnon nnfire? nn- nnCORRECT nnANSWER-wrap nnwith
nnfire nnblanket nn
nn
and nnstop, nndrop, nnand
nnroll
nn
what nnif nna nnchemical nnspills nnon nnyour nn leg? nn - nn CORRECT nn ANSWER-remove
nnaffected nnclothing nn
nn
and nnrinse nnwith nnwater nnfor nn15
nnminutes
nn
what nnif nna nnchemical nngets nnin nnyour nneyes? nn- nnCORRECT nnANSWER-flush nnwith
nneye-wash nn
nn
solution nnfor nn15
nnminutes
nn
what nnif nna nnchemical nnspills nnon nnyour nnhand? nn- nnCORRECT nnANSWER-rinse nnwith
nnwater nnfor nn15 nn
nn
minutes
nn
what nnshould nnyou nndo nnif nnyou nnspill nn a nn chemical nn on nn your nn lab nn bench? -
nn
nnCORRECT nnANSWER-
nn
clean nnit nnup nnusing nnthe nnspill nnkit nnin
nnyour nnlab.
nn
can nnyou nneat nnor nndrink nnin nnthe nnlab? nn- nnCORRECT nnANSWER-no nn
nn
when nnis nnit nnokay nnto nnremove nnyour nnchemical nnsplash nnproof nngoggles? nn- nnCORRECT
nnANSWER-
nn
when nneveryone nnin nnthe nnlab nnhas nnput nnaway nnall nnchemicals nnand
nnglassware
nn
What nnis nnthe nndensity nnof nna nnsolid nnthat nnoccupies nna nnvolume nnof nn5.89 nnmL nnand
nnweighs nn5.14 nng? nn-
nn
CORRECT nnANSWER-density nn=
nnmass/volume
nn
5.14 nng/5.89 nnmL nn= nn0.873 nng/mL nn
nn
sugar nndisappears nnwhen nnadded nnto nnhot nntea. nnwhat nndescribes nnthe nnrelationship
nnbetween nnsugar nn
nn
and nntea? nn- nnCORRECT nnANSWER-
soluble
nn
,what nnwill nnresult nnwhen nnwater nn(density nn= nn1.0 nng/mL), nnliquid nnM nn(density nn= nn0.65
nng/mL, nnimmiscible nnwith nnH2O), nnand nnliquid nnN nn(density nn= nn0.80 nng/mL, nnimmiscible
nnwith nnM nnand nnH2O) nnare nnpoured nninto nntest nntube. nn- nnCORRECT nnANSWER-three
nnlayers nnwill nnform nnin nnthe nntest nntube. nnwater nnis nnthe nnbottom nnlayer, nnliquid nnN nnis
nnmiddle nnlayer, nnand nnliquid nnM nnis nnthe nntop nnlayer. nn
nn
the nnability nnfor nna nngas nnor nnsolid nnto nndissolve nnin nna nnliquid nn- nnCORRECT nnANSWER-
solubiliy nn
nn
mass nnto nnvolume nnratio nn- nnCORRECT nnANSWER-density nn
nn
the nnability nnfor nntwo nnliquids nnto nnmix nntogether nn- nnCORRECT nnANSWER-miscibility nn
nn
A nn+ nnB nn→ nnAB nnrepresents... nn- nnCORRECT nnANSWER-combination nn
nn
ABC nn→ nnAB nn+ nnC nnrepresents.... nn- nnCORRECT nnANSWER-decomposition nn
nn
AB nn+ nnC nn→ nnB nn+ nnAC nnrepresents.... nn- nnCORRECT nnANSWER-single nndisplacement nn
nn
AB nn+ nnCD nn→ nnAD nn+ nnBC nnrepresents... nn- nnCORRECT nnANSWER-double
nndisplacement nn
nn
A nn+ nnB nn→ nnA+n nn+ nnB-m nnrepresents... nn- nnCORRECT nnANSWER-oxidation-reduction nn
nn
amount nnof nnproduct nnrecovered nnin nnan nnexperiment nn- nnCORRECT nnANSWER-actual
nnyield nn
nn
the nnamount nnof nnproduct nnproduced nnif nnthe nnexperiment nnwas nn100% nnefficient nn-
nnCORRECT nn
nn
ANSWER-theoretical
nnyield
nn
actual nnyield nnover nntheoretical nnyield nntimes nn100 nn- nnCORRECT nnANSWER-percent
nnyield nn
nn
what nnis nnthe nnequation nn for nn percent nn yield? nn - nn CORRECT nn ANSWER-actual
nnyield/theoretical nn
nn
yield nnx
nn100
nn
Cooper, nnZach nnand nnNate nndid nnthis nnexperiment nndissolving nn 3.65 nn g nn of
nnCu(C2H3O2)2·H2O nnand nn
nn nn
adding nn8.25 nng nnNaC7H4SO3N·H2O nn(assume nnpresent nnin
nnexcess).
nn
What nnis nnthe nntheoretical nnyield nnof nnthe nnproduct, nnCu(C7H4SO3N)2(H2O)4·2 nnH2O(s)?
nn
nn
Molar nnMass nnof nnCopper(II) nnacetate nnmonohydrate nn= nn199.65 nng/mol nn
Molar nnMass nnof nnSodium nnsaccharinate nnmonohydrate nn= nn223.18 nng/mol nn
, Molar nnMass nnof nnproduct nn= nn535.59 nng/mol nn- nnCORRECT nnANSWER-convert nnthe
nngrams nnof nneach nncompound nnto nngrams nnof nnthe nnproduct nn- nnthe nnlowest nnone nnis nnthe
nntheoretical nnyield nn
nn
9.79 nng nn
nn
In nna nnsimilar nnexperiment, nnCooper, nnZach nn& nnNate nnstarted nn with nn 4.36 g
nn nn of
nnCu(C2H3O2)2·H2O nn
nn
and nn9.87 nng nnof nnNaC7H4SO3N·H2O nnand nnobtained
nn10.08 nng nnof
nn
Cu(C7H4SO3N)2(H2O)4·2H2O.
nn
Molar nnMass nnof nnCopper(II) nnacetate nnmonohydrate nn= nn199.65 nng/mol nn
Molar nnMass nnof nnSodium nnsaccharinate nnmonohydrate nn= nn223.18 nng/mol nn
Molar nnMass nnof nnproduct nn= nn535.59 nng/mol nn
nn
Theoretical nnyield nnand nnpercent nnyield? nn- nnCORRECT nnANSWER-theoretical nnyield nn-
nn11.70 nng
nn
percent nnyield nn-
nn86.2%
nn
nn
For nnthe nnprocedural nnerror, nnindicate nnif nnthe nnerror nnwill nnaffect nnthe nnactual nnyield
nnof nncopper(II)
saccharinate nnproduct nnand nnif nnit nndoes, nnwill nnit nnraise nnor nnlower nnthe nnactual nnyield:
nn[experiment nn4]
nn
Scraping nnthe nnfilter nnpaper nnso nnhard nnthat nnsmall nnbits nnof nnfilter nnpaper nnare nnwith nnthe
nncrystals nnon nnthe nn
nn
watch nnglass nn- nnCORRECT nnANSWER-raises nnthe nnactual
nnyield
nn
nn
For nnthe nnprocedural nnerror, nnindicate nnif nnthe nnerror nnwill nnaffect nnthe nnactual nnyield
nnof nncopper(II)
saccharinate nnproduct nnand nnif nnit nndoes, nnwill nnit nnraise nnor nnlower nnthe nnactual nnyield:
nn[experiment nn4]
nn
Leaving nnsome nncrystals nnbehind nnin nnthe nnbeaker nn- nnCORRECT nnANSWER-lowers
nnthe nnactual nn
nn
yield
nn
the nnreactant nnthat nnis nncompletely nnconsumed nnduring nnthe nnreaction nn- nnCORRECT
nnANSWER-
nn
limiting
nnreagent
nn
the nnamount nnof nnproduct nnthat nncould nnbe nnproduced nnusing nna nngiven nnamount nnof
nnreactant. nn-
nn nn nn nn nn
nn Guide Latest Updated Questions With
nn nn nn nn
Detailed Verified Answers (100%
nn nn nn nn
nn
nn Correct Answers) /Already Graded A+
nn nn nn nn
nn
what nnmust nnyou nndo nnbefore nncoming nnto nnthe nnlab? nn- nnCORRECT nnANSWER-take
nnthe nnlab nnquiz, nn
nn
write nnthe nnchemical nnalert nntable nnin nnthe nnlab nnnotebook, nnreview nnthe nnchemicals
nnand nntheir
nn
hazards, nnread nnthe nnexperiment, nnprepare nnthe nnlab nnnotebook nnfor nnthe
nnexperiment
nn
which nnof nnthe nnfollowing nnitems nnof nnclothing nnare nnappropriate nnto nnwear nnin nnCHEM
nn1212 nnlab nnto nn
nn
protect nnyour nnskin nn? nn- nnCORRECT nnANSWER-lab nnapron, nnt-shirt, nnscrub
nnpants, nnjeans
nn
which nnof nnthe nnfollowing nnare nnappropriate nnto nnwear nnin nnCHEM nn1212 nnLab nnto nnprotect
nnyour nnfeet? nn-
nn
CORRECT nnANSWER-boots, nnloafers, nnor nntennis
nnshoes/sneakers
nn
where nnis nnthe nneye nnwash nnstation nnlocated? nn- nnCORRECT nnANSWER-mounted nnon
nnthe nnwall nn
nn
next nnto nnthe nnlarge
nnsink
nn
chemical nncauses nndryness, nnitching, nnor nnsensitivity nn- nnCORRECT nnANSWER-irritant nn
nn
irreversibly nndestroys nnliving nntissue nnor nnmetal nnupon nncontact nn- nnCORRECT
nnANSWER-
nn
corrosive
nn
may nncause nnharm nnthrough nningestion, nninhalation, nnor nnskin nnabsorption nn-
nnCORRECT nn
nn
ANSWER-toxic
nn
chemical nnproved nnto nncause nncancer nn- nnCORRECT nnANSWER-carcinogen nn
nn
excess nnchemicals nndisposal nnmethod nn- nnCORRECT nnANSWER-appropriate nnwaste
nncontainer nn
nn
used nnfilter nnpaper nndisposal nnmethod nn- nnCORRECT nnANSWER-trash nncan nn
nn
,reaction nnmixture nndisposal nnmethod nn- nnCORRECT nnANSWER-appropriate nnwaste
nncontainer nn
nn
cracked nnor nnchipped nnbeaker nndisposal nnmethod nn- nnCORRECT nnANSWER-broken
nnglass nnbox nn
nn
what nnif nna nnperson's nnhair nncatches nnon nnfire? nn- nnCORRECT nnANSWER-wrap nnwith
nnfire nnblanket nn
nn
and nnstop, nndrop, nnand
nnroll
nn
what nnif nna nnchemical nnspills nnon nnyour nn leg? nn - nn CORRECT nn ANSWER-remove
nnaffected nnclothing nn
nn
and nnrinse nnwith nnwater nnfor nn15
nnminutes
nn
what nnif nna nnchemical nngets nnin nnyour nneyes? nn- nnCORRECT nnANSWER-flush nnwith
nneye-wash nn
nn
solution nnfor nn15
nnminutes
nn
what nnif nna nnchemical nnspills nnon nnyour nnhand? nn- nnCORRECT nnANSWER-rinse nnwith
nnwater nnfor nn15 nn
nn
minutes
nn
what nnshould nnyou nndo nnif nnyou nnspill nn a nn chemical nn on nn your nn lab nn bench? -
nn
nnCORRECT nnANSWER-
nn
clean nnit nnup nnusing nnthe nnspill nnkit nnin
nnyour nnlab.
nn
can nnyou nneat nnor nndrink nnin nnthe nnlab? nn- nnCORRECT nnANSWER-no nn
nn
when nnis nnit nnokay nnto nnremove nnyour nnchemical nnsplash nnproof nngoggles? nn- nnCORRECT
nnANSWER-
nn
when nneveryone nnin nnthe nnlab nnhas nnput nnaway nnall nnchemicals nnand
nnglassware
nn
What nnis nnthe nndensity nnof nna nnsolid nnthat nnoccupies nna nnvolume nnof nn5.89 nnmL nnand
nnweighs nn5.14 nng? nn-
nn
CORRECT nnANSWER-density nn=
nnmass/volume
nn
5.14 nng/5.89 nnmL nn= nn0.873 nng/mL nn
nn
sugar nndisappears nnwhen nnadded nnto nnhot nntea. nnwhat nndescribes nnthe nnrelationship
nnbetween nnsugar nn
nn
and nntea? nn- nnCORRECT nnANSWER-
soluble
nn
,what nnwill nnresult nnwhen nnwater nn(density nn= nn1.0 nng/mL), nnliquid nnM nn(density nn= nn0.65
nng/mL, nnimmiscible nnwith nnH2O), nnand nnliquid nnN nn(density nn= nn0.80 nng/mL, nnimmiscible
nnwith nnM nnand nnH2O) nnare nnpoured nninto nntest nntube. nn- nnCORRECT nnANSWER-three
nnlayers nnwill nnform nnin nnthe nntest nntube. nnwater nnis nnthe nnbottom nnlayer, nnliquid nnN nnis
nnmiddle nnlayer, nnand nnliquid nnM nnis nnthe nntop nnlayer. nn
nn
the nnability nnfor nna nngas nnor nnsolid nnto nndissolve nnin nna nnliquid nn- nnCORRECT nnANSWER-
solubiliy nn
nn
mass nnto nnvolume nnratio nn- nnCORRECT nnANSWER-density nn
nn
the nnability nnfor nntwo nnliquids nnto nnmix nntogether nn- nnCORRECT nnANSWER-miscibility nn
nn
A nn+ nnB nn→ nnAB nnrepresents... nn- nnCORRECT nnANSWER-combination nn
nn
ABC nn→ nnAB nn+ nnC nnrepresents.... nn- nnCORRECT nnANSWER-decomposition nn
nn
AB nn+ nnC nn→ nnB nn+ nnAC nnrepresents.... nn- nnCORRECT nnANSWER-single nndisplacement nn
nn
AB nn+ nnCD nn→ nnAD nn+ nnBC nnrepresents... nn- nnCORRECT nnANSWER-double
nndisplacement nn
nn
A nn+ nnB nn→ nnA+n nn+ nnB-m nnrepresents... nn- nnCORRECT nnANSWER-oxidation-reduction nn
nn
amount nnof nnproduct nnrecovered nnin nnan nnexperiment nn- nnCORRECT nnANSWER-actual
nnyield nn
nn
the nnamount nnof nnproduct nnproduced nnif nnthe nnexperiment nnwas nn100% nnefficient nn-
nnCORRECT nn
nn
ANSWER-theoretical
nnyield
nn
actual nnyield nnover nntheoretical nnyield nntimes nn100 nn- nnCORRECT nnANSWER-percent
nnyield nn
nn
what nnis nnthe nnequation nn for nn percent nn yield? nn - nn CORRECT nn ANSWER-actual
nnyield/theoretical nn
nn
yield nnx
nn100
nn
Cooper, nnZach nnand nnNate nndid nnthis nnexperiment nndissolving nn 3.65 nn g nn of
nnCu(C2H3O2)2·H2O nnand nn
nn nn
adding nn8.25 nng nnNaC7H4SO3N·H2O nn(assume nnpresent nnin
nnexcess).
nn
What nnis nnthe nntheoretical nnyield nnof nnthe nnproduct, nnCu(C7H4SO3N)2(H2O)4·2 nnH2O(s)?
nn
nn
Molar nnMass nnof nnCopper(II) nnacetate nnmonohydrate nn= nn199.65 nng/mol nn
Molar nnMass nnof nnSodium nnsaccharinate nnmonohydrate nn= nn223.18 nng/mol nn
, Molar nnMass nnof nnproduct nn= nn535.59 nng/mol nn- nnCORRECT nnANSWER-convert nnthe
nngrams nnof nneach nncompound nnto nngrams nnof nnthe nnproduct nn- nnthe nnlowest nnone nnis nnthe
nntheoretical nnyield nn
nn
9.79 nng nn
nn
In nna nnsimilar nnexperiment, nnCooper, nnZach nn& nnNate nnstarted nn with nn 4.36 g
nn nn of
nnCu(C2H3O2)2·H2O nn
nn
and nn9.87 nng nnof nnNaC7H4SO3N·H2O nnand nnobtained
nn10.08 nng nnof
nn
Cu(C7H4SO3N)2(H2O)4·2H2O.
nn
Molar nnMass nnof nnCopper(II) nnacetate nnmonohydrate nn= nn199.65 nng/mol nn
Molar nnMass nnof nnSodium nnsaccharinate nnmonohydrate nn= nn223.18 nng/mol nn
Molar nnMass nnof nnproduct nn= nn535.59 nng/mol nn
nn
Theoretical nnyield nnand nnpercent nnyield? nn- nnCORRECT nnANSWER-theoretical nnyield nn-
nn11.70 nng
nn
percent nnyield nn-
nn86.2%
nn
nn
For nnthe nnprocedural nnerror, nnindicate nnif nnthe nnerror nnwill nnaffect nnthe nnactual nnyield
nnof nncopper(II)
saccharinate nnproduct nnand nnif nnit nndoes, nnwill nnit nnraise nnor nnlower nnthe nnactual nnyield:
nn[experiment nn4]
nn
Scraping nnthe nnfilter nnpaper nnso nnhard nnthat nnsmall nnbits nnof nnfilter nnpaper nnare nnwith nnthe
nncrystals nnon nnthe nn
nn
watch nnglass nn- nnCORRECT nnANSWER-raises nnthe nnactual
nnyield
nn
nn
For nnthe nnprocedural nnerror, nnindicate nnif nnthe nnerror nnwill nnaffect nnthe nnactual nnyield
nnof nncopper(II)
saccharinate nnproduct nnand nnif nnit nndoes, nnwill nnit nnraise nnor nnlower nnthe nnactual nnyield:
nn[experiment nn4]
nn
Leaving nnsome nncrystals nnbehind nnin nnthe nnbeaker nn- nnCORRECT nnANSWER-lowers
nnthe nnactual nn
nn
yield
nn
the nnreactant nnthat nnis nncompletely nnconsumed nnduring nnthe nnreaction nn- nnCORRECT
nnANSWER-
nn
limiting
nnreagent
nn
the nnamount nnof nnproduct nnthat nncould nnbe nnproduced nnusing nna nngiven nnamount nnof
nnreactant. nn-
