Madi Wright
11
CSAS Center – ML 402
[email protected]
CHEM 1002
Lectures:MainGroupElements1–2andNuclearChemistry1
Textbook:Chapter20and21
Topics
• LewisAcidsandBases
• Hard-SoftAcid-BasePrinciple
• MetathesisReactions
• Alum,Tin,Lead,Phosphorus,Carbon
• Nuclides
• NuclearReactions
Opener
LastWeek
SpectrochemicalSeries
1.Explainwhy[Co(CN)6]3–isdiamagnetic.
Wednesdays
1:35-2:25pm
(10minutes)
2.Drawacrystalfieldenergyleveldiagramshowingwheretheelectronsareinthevariousdorbitals.Showboththelow-andhigh-spinconfigurationsforMn2+.
Madi Wright
11
CSAS Center – ML 402
[email protected]
CHEM 1002
ShortAnswerQuestions 1.WhataresomecharacteristicsofaLewisbase?
2.WhataresomecharacteristicsofaLewisAcid?
3.Listsomehardacids.
4.Listsomehardbases.
5.Listsomesoftacids.
Wednesdays
1:35-2:25pm
(70minutes)
Madi Wright
11
CSAS Center – ML 402
[email protected]
CHEM 1002
Wednesdays
1:35-2:25pm
6.Listsomesoftbases.
7.Brieflyexplainthehard-softconcept.
8.Ineachofthefollowingreactions,identifytheLewisacidandtheLewisbase.
a) Ni+4COà[Ni(CO)4)]
b) SbCl3+2Cl-à[SbCl5]2-
c) (CH3)3P+AlBr3à(CH3)3P–AlBr3
d) BF3+ClF3à[ClF2]++[BF4]-
9.Rankthefollowingionsinorderofincreasingpolarizability,andexplainyourreasoning:Fe3+,
Fe2+,Pb2+,V3+.
Madi Wright
11
CSAS Center – ML 402
[email protected]
CHEM 1002
Wednesdays
1:35-2:25pm
10.WhichofZnorCdismorelikelytobefoundinnatureasasulphideratherthananoxide?Why?
11.UseHSABtheorytocompletethefollowingreactions:CompoundswithLewisacid–base
propertieswillundergometathesisreactionsifatransferofbondingpartnersassociatesharder
acidswithharderbases.
a) AlI3+NaClà
b) TiCl4+TiI4à
c) CaO+H2Sà
d) CH3Li+PCl3à
e) AgI+SiCl4à
f) AlCl3+3LiCH3à
g) SO3+H2Oà
12.Writetheroastingreactionoflead.
Madi Wright
11
CSAS Center – ML 402
[email protected]
CHEM 1002
Wednesdays
1:35-2:25pm
13.Writethereducingreactionoflead.
14.Whatarethethreetypesofphosphorous?Whataretheirmeltingtemperatures?
15.Writethereductionreactionthataccompaniestheoxidationofapieceofironinthe
environment.
16.Whatisacarbonnanotube?
17.Explaintheinteractionbetweenacarbonnanotube,astrandofDNAandthedrugMelphalan.
Madi Wright
11
CSAS Center – ML 402
[email protected]
CHEM 1002
Wednesdays
1:35-2:25pm
18.Whatisthedifferencebetweenanucleus,anucleonandanuclide?
19.Whatisstrongnuclearforce?Whatisnuclearbindingenergy?Howwouldyoucalculateit?
Whatisamassdefect?
20.Describenuclearstability.
Closer
(5minutes)
th
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