Final Exam CHEM 219 Exam Questions And Co
The cspeed cof ca cwave c(c) cis cthe cproduct cof cits cfrequency c(ν) cand cwavelength c(λ). c- cCORREC
nm cto cm
or
m cto cnm c- cCORRECT cANS✔✔1 cm c/ c10^9 cnm
or
10^9 cnm c/ c1 cm
What cis cthe cmaximum cnumber cof celectrons cthat ccan chave cthe cquantum cnumbers cn c= c3, cℓ c=
cANS✔✔The cPauli cexclusion cprinciple cstates cthat cno ctwo celectrons cin ca cgiven catom ccan cshar
cquantum cnumbers c(n, cℓ, cmℓ, cms). cThis cset cof cquantum cnumbers ccontains cthree cquantum cnum
cquantum cnumber cbeing cms, cwhich ccan ctake con cthe cvalues c+½ cand c-½. cTherefore, cthis cset co
crepresents ca csingle catomic corbital, cwhich ccan ccontain ctwo cunique celectrons: cone cwith cms c= c
An cexothermic creaction ccauses cthe csurroundings cto c- cCORRECT cANS✔✔An cexothermic creac
csystem cto cthe csurroundings. cThat ctells cus cthe csurroundings cwill cget cwarmer.
A ctheory cis canother cword cfor ca(n) c_________. c- cCORRECT cANS✔✔A ctheory cor cmodel cis ca c
ca cphenomenon cbased con ca cseries cof cfacts cand ca cbody cof cevidence.
What cis cthe cdefinition cof ca cnatural claw? c- cCORRECT cANS✔✔A cscientific claw csummarizes can
The cskeletal cstructure cof ca ccomplex corganic cmolecule cis cshown cbelow. cDetermine cthe cnumbe
cbonds cin cthe cmolecule. c- cCORRECT cANS✔✔Remember ca csingle cbond c= c1 cσ; ca cdouble cbon
c= c1 cσ c+ c2 cπ. cThis cmolecule ccontains c6 cdouble cbonds, cso cthere care c6σ cand c6π. cThere care
c28 cσ. cThis cis ca ctotal c34σ cand c6π.
strontium cphosphate c- cCORRECT cANS✔✔Sr₃(PO₄)₂
Which cof cthe cfollowing cstatements cis ctrue? c- cCORRECT cANS✔✔One cdriving cforce cin cthe cvap
cincrease cin cdisorder c(entropy). cGas cmolecules care cmore cdisordered cthan cliquid cmolecules. cAd
ca cliquid calso cincreases cthe cdisorder cof cthe cliquid cmolecules, cso cthe cdifference cin cdisorder cbe
cphases cis cnot cas cgreat cas cwith ca cpure csubstance. cTherefore cthe ctendency cto cvaporize cis cno
cit cis cfor cthe cpure cliquid, cresulting cin ca clower cvapor cpressure cfor cthe csolution.
Which cof cthe cfollowing caqueous csolutions cwould chave cthe chighest cboiling cpoint?
, Which cof cthe cfollowing cbonds cis cthe cmost cpolar? c- cCORRECT cANS✔✔Elements cthat care cloca
con cthe cperiodic ctable chave clarger celectronegativity cdifferences cand ctherefore cmake cmore cpola
cpairs clisted, cRb cand cBr care cthe cfarthest capart.
Three cblocks cof cthe csame cshape cand csize care cplaced cin cfront cof cyou. cBlock cA chas ca cmass c
cand cblock cC cis c10.0 cg. cWhich chas cthe chigher cdensity? c- cCORRECT cANS✔✔Density cis cthe c
cSince cthe cvolume cis cconstant cbetween call cthe cblocks, cthen cthe cblock cwith cthe chighest cmass
Density cequation c- cCORRECT cANS✔✔mass/volume
dRT c= cPM
The csolubility cof ca cgas cin ca cliquid cgenerally c
A) cincreases cwith cincreasing ctemperature. c
B) cincreases cwith cdecreasing ctemperature. c
C) cincreases cwith cincreasing cpressure. c
D) cboth c(a) cand c(c). c
E) cboth c(b) cand c(c). c- cCORRECT cANS✔✔E) cboth c(b) cand c(c)
Which cof cthe cfollowing cproperties, cin cgeneral, cincrease cas cwe cmove cleft cto cright cacross ca cpe
1. catomic cradius c
2. cionization cenergy c
3. cmetallic ccharacter
A) c1 conly c
B) c2 conly c
C) c3 conly c
D) c1 cand c2 conly c
E) c2 cand c3 conly c- cCORRECT cANS✔✔B) c2 conly
All cthe cfollowing cstatements cconcerning ca csample cof coxygen cgas cat c1.00 catm cpressure care ctr
A) cthe cmolecules care cin cconstant crapid crandom cmotion. c
B) cthe cpressure cexerted cby cgaseous coxygen cis cdue cto cthe cimpact cof cthe cmolecules cwith cthe
C) cthe caverage ckinetic cenergy cof cthe cgaseous coxygen cis cinversely cproportional cto cthe cabsolut
D) ccollisions cbetween cthe cgaseous cmolecules care celastic. c
E) cthe cvolume coccupied cby cthe coxygen cmolecules cis cnegligible ccompared cwith cthe csize cof cth
cANS✔✔C) cthe caverage ckinetic cenergy cof cthe cgaseous coxygen cis cinversely cproportional cto cth
cgas.
A cbond cin cwhich can celectron cpair cis cunequally cshared cby ctwo catoms cis c
A) cionic. c
B) cpolar ccovalent. c
C) cnonpolar ccovalent. c
D) ccoordinate ccovalent. c
E) cdipolar. c- cCORRECT cANS✔✔B) cpolar ccovalent.
Which cof cthe cfollowing cstatements cis c(are) ctrue? c
1. cAn cexcited catom ccan creturn cto ca chigher cenergy clevel cby cemitting clight cenergy. c
2. cAn catom ccan cbe cexcited cto ca chigher cenergy clevel cby cabsorption cof clight cenergy. c
3. cThe cfrequency cand cwavelength cof clight care cinversely cproportional. c
The cspeed cof ca cwave c(c) cis cthe cproduct cof cits cfrequency c(ν) cand cwavelength c(λ). c- cCORREC
nm cto cm
or
m cto cnm c- cCORRECT cANS✔✔1 cm c/ c10^9 cnm
or
10^9 cnm c/ c1 cm
What cis cthe cmaximum cnumber cof celectrons cthat ccan chave cthe cquantum cnumbers cn c= c3, cℓ c=
cANS✔✔The cPauli cexclusion cprinciple cstates cthat cno ctwo celectrons cin ca cgiven catom ccan cshar
cquantum cnumbers c(n, cℓ, cmℓ, cms). cThis cset cof cquantum cnumbers ccontains cthree cquantum cnum
cquantum cnumber cbeing cms, cwhich ccan ctake con cthe cvalues c+½ cand c-½. cTherefore, cthis cset co
crepresents ca csingle catomic corbital, cwhich ccan ccontain ctwo cunique celectrons: cone cwith cms c= c
An cexothermic creaction ccauses cthe csurroundings cto c- cCORRECT cANS✔✔An cexothermic creac
csystem cto cthe csurroundings. cThat ctells cus cthe csurroundings cwill cget cwarmer.
A ctheory cis canother cword cfor ca(n) c_________. c- cCORRECT cANS✔✔A ctheory cor cmodel cis ca c
ca cphenomenon cbased con ca cseries cof cfacts cand ca cbody cof cevidence.
What cis cthe cdefinition cof ca cnatural claw? c- cCORRECT cANS✔✔A cscientific claw csummarizes can
The cskeletal cstructure cof ca ccomplex corganic cmolecule cis cshown cbelow. cDetermine cthe cnumbe
cbonds cin cthe cmolecule. c- cCORRECT cANS✔✔Remember ca csingle cbond c= c1 cσ; ca cdouble cbon
c= c1 cσ c+ c2 cπ. cThis cmolecule ccontains c6 cdouble cbonds, cso cthere care c6σ cand c6π. cThere care
c28 cσ. cThis cis ca ctotal c34σ cand c6π.
strontium cphosphate c- cCORRECT cANS✔✔Sr₃(PO₄)₂
Which cof cthe cfollowing cstatements cis ctrue? c- cCORRECT cANS✔✔One cdriving cforce cin cthe cvap
cincrease cin cdisorder c(entropy). cGas cmolecules care cmore cdisordered cthan cliquid cmolecules. cAd
ca cliquid calso cincreases cthe cdisorder cof cthe cliquid cmolecules, cso cthe cdifference cin cdisorder cbe
cphases cis cnot cas cgreat cas cwith ca cpure csubstance. cTherefore cthe ctendency cto cvaporize cis cno
cit cis cfor cthe cpure cliquid, cresulting cin ca clower cvapor cpressure cfor cthe csolution.
Which cof cthe cfollowing caqueous csolutions cwould chave cthe chighest cboiling cpoint?
, Which cof cthe cfollowing cbonds cis cthe cmost cpolar? c- cCORRECT cANS✔✔Elements cthat care cloca
con cthe cperiodic ctable chave clarger celectronegativity cdifferences cand ctherefore cmake cmore cpola
cpairs clisted, cRb cand cBr care cthe cfarthest capart.
Three cblocks cof cthe csame cshape cand csize care cplaced cin cfront cof cyou. cBlock cA chas ca cmass c
cand cblock cC cis c10.0 cg. cWhich chas cthe chigher cdensity? c- cCORRECT cANS✔✔Density cis cthe c
cSince cthe cvolume cis cconstant cbetween call cthe cblocks, cthen cthe cblock cwith cthe chighest cmass
Density cequation c- cCORRECT cANS✔✔mass/volume
dRT c= cPM
The csolubility cof ca cgas cin ca cliquid cgenerally c
A) cincreases cwith cincreasing ctemperature. c
B) cincreases cwith cdecreasing ctemperature. c
C) cincreases cwith cincreasing cpressure. c
D) cboth c(a) cand c(c). c
E) cboth c(b) cand c(c). c- cCORRECT cANS✔✔E) cboth c(b) cand c(c)
Which cof cthe cfollowing cproperties, cin cgeneral, cincrease cas cwe cmove cleft cto cright cacross ca cpe
1. catomic cradius c
2. cionization cenergy c
3. cmetallic ccharacter
A) c1 conly c
B) c2 conly c
C) c3 conly c
D) c1 cand c2 conly c
E) c2 cand c3 conly c- cCORRECT cANS✔✔B) c2 conly
All cthe cfollowing cstatements cconcerning ca csample cof coxygen cgas cat c1.00 catm cpressure care ctr
A) cthe cmolecules care cin cconstant crapid crandom cmotion. c
B) cthe cpressure cexerted cby cgaseous coxygen cis cdue cto cthe cimpact cof cthe cmolecules cwith cthe
C) cthe caverage ckinetic cenergy cof cthe cgaseous coxygen cis cinversely cproportional cto cthe cabsolut
D) ccollisions cbetween cthe cgaseous cmolecules care celastic. c
E) cthe cvolume coccupied cby cthe coxygen cmolecules cis cnegligible ccompared cwith cthe csize cof cth
cANS✔✔C) cthe caverage ckinetic cenergy cof cthe cgaseous coxygen cis cinversely cproportional cto cth
cgas.
A cbond cin cwhich can celectron cpair cis cunequally cshared cby ctwo catoms cis c
A) cionic. c
B) cpolar ccovalent. c
C) cnonpolar ccovalent. c
D) ccoordinate ccovalent. c
E) cdipolar. c- cCORRECT cANS✔✔B) cpolar ccovalent.
Which cof cthe cfollowing cstatements cis c(are) ctrue? c
1. cAn cexcited catom ccan creturn cto ca chigher cenergy clevel cby cemitting clight cenergy. c
2. cAn catom ccan cbe cexcited cto ca chigher cenergy clevel cby cabsorption cof clight cenergy. c
3. cThe cfrequency cand cwavelength cof clight care cinversely cproportional. c
