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Name:
GurP
Exam ,l
Chcm 10lB
SpectrochemicalSeries: C]ltr
NO2- en > NHr > H2O OH- > F- > Cl Ba > f
Strong-jieldIigand,s Il/eak-jield ligands
MULTIPLtr CHOICE Write the letter for the oneanswerthat bestcompletesthe
statementor answcrsthe question,(3 pointseach)
€
1. Wrichof thelollowing
is mosllikelyto beparamagnetic?
A. tFe(cD6l
B. tFeB"lr-
[FerNHr)"]'z' D.
[ferHzo)o]'?.
Arrofthesemustbep"'{3i5?x7-",t
h'p,iJ
I 1^^d
IIr;l' 6o
C
[--
- Mrich oI thefollowingis aa exanrpleof nuclearfission?
.r,.
lH + lH
ltte
B.
rjc
'lB + le
c. lj,tm
'lltlp
D. i:Al +.1"
11tvte
E.
rliu
r{cs
jn
[3.
Accordingto molecularorbitaltheory,octahcdralcl-orbitalsplilling(An)is larger
when:
A. 1hc ligandlonepairorbitalsareclosein energy to themetaiion orbitals.
B. The ligandlonepairorbitaLsarevery low in energycomparedto thc metalion
orbitals.
C. Thechargeon themelalionislow
D. The
ligands arevery elechonegative.
E. Thereis an oddnumberofelectrons.
t_...,,
\U_4.
Whichot thciollowingstatclnentsis not co(ectregardingthcbindingenergy
ofa
nuclgus?
A. UsingDinslein'sequationE = mc2,the massrelatedto nuclear bindingenergy
canbe subtractedfrom the sumofthe massesofprotons.neutrons, andelectrons
lu linJrheatomicmasso[ a nuclide
B. A smaller bindingenergy
pernucleon corespondsto a lessstablenucleus.
C. The largertheoverallbindingenergyis, themorestable a nuclcusis.
D. Thebindingenergyis theenergyneededto decompose the
nuclous into its
protons andneutrons.
.- G,,^,),,.,\ F 0.r
11L^c.l(04 g;/? fLL L.tL /^t'
t.,.r, ,tf
'J
r'
3 D€cember 2009
,nu,:,.14,,-
5 /z"bi lit'
Exam4, page2 of
Showall your work for all problemsto receiYe
credit. Circle your linal answerand' where
appropriate,round your final answerto the correctnumber
of significantfigures'
- Write a balanced
nuclearequationfor eachtransformationdesoribedbelow.
( I 0 points)
t
a. Betaparticleemissionby Kr-
-r
(-(
-->
-,e
'L'7-5 r'> -u
' Ll-
^,
l'o-
z''"
L1l
Lr)
t
")
t.
\tc,t4'ov
;tNL
4
-, ,(
f
Alpha
particleemissior'byPa-
.-A
r'
3"2'R
L
('''"'r^'"
b.
zq
uu
- Complelethefollowingnuclear
equationsby filling in theboxes.
(,^'h,!s /(',i'b"
'
t;;f"
jn*TBk+_:e
at?
r, ,
't,t
aJ-
---a z
11< r 6;
t' L
61
/tL
r]]tn
+ r jn
)
(8 points)
?
\l
,)
b.
f;ieu+ jn
5
- Ofthe two complexeq
[CoFeJ'-
blue. Assignthecoloi'ihat-gtie
fo
appt*-
yettolJ
)
c' J*b'"h^<a'
."b;'rl
l:di ?t-)
dit
'i
ta
t
*t- t""
h,51,-tner3y
e^ol
o€ tn'
ti:iilte
tlQ h"^
'
fi
*|p"o..
Alu" t
^
5ub
tau,cL
tt 6'so'4s o-.a-\e' t
u'tA'rn <:-lrrrsp+'
'o
)" ,^,r,r.
Fhcto'"
E o'^
'
a Tan"llav Ao
fao
b0"<
5'tt&'12rc<
wtll
h"\r(
6t
€"noller'
A
lao'
fue f
lto'J
'O\ae
6t*^
Y*r
t''
It
a-
'^''fc-"!
h?r
(tnlal
l4ou"r
fh"<
is
e't
'
fhc
Lt'n cz'n7!*s
r'' u'st I
"-
(C'f-Jt
"
l>
o weohe- f'
"l'l
i.,,,", ,
6-
leoJs k
a' t*"ttev-
ebc'tiY
4^f
bet^' n
'.fr"n
,J
o^,*,
(an k'
o'fahpdn"l\
'
flv'
)rnaJcr'- 6etl li5..^4/
h
eA
tb
l"r,".lE
k'
^
lo'r1tr 6o
'
a'oftrSyaacl u2 k
(L
htriher-e,ae,1y
b(
o-as",^phaa(vrr rtt-) lo
g;te n
'i'
""'
^'^io*/
9. SrLggestarcasoni,hycopper(ll)cornpoundsareoftencolored,butcoppcr(l)comp.Jil
-.fri,i"':i'"p;"'tf;lf^'"'2,t"'
c's'-\k.te
i2 t's' lvolL'e
,:;[3i'4:l;'
'Ii:r-\T.
"t..
"
y^,^,iLr^ /wztt'
"- toJrF{ tr'ota
FI. ft h:)"",
Z"rr",-(,D
4..,
I'kt
v^ttq<e
e' co'6JLt"t'l'lh
3d'
('',"'(
4'i'b"
--n'
1,*o e- 5
l^,u,t
t
b<*v Tcattec'!
h-
(',
,
4 s' 3/'")
'
Hat,ly
I
ale e,lnr*^^
i e*tco
o' Vaclx^c'f
' ^
fL'"
cl e4c*1, le,tc{5 so fh"')
a'
ol-
e(tc'1't-
can Aa
e*c'ii-ec'[
'l',
f,n,
o.u, ac[ztlasdftrf u"^PleY ,
+a a
h4t4n e^(Y/
t"1;i;#iL\
C,PJ
+F t-
/a,<teaset
ca ""4d/e
uy" ta
#at' \ , 4t 4-!-
-i'7.-
h,:at,a-
.](f
,
vJi/'La
(\
ff
Ii
t
h'Auun,t"t,'
:'7r,:
(_
\c'upp.n'
(i)
haE
a-
<>'^ltel'e
17 /ill?.J
3 cl
.t'-ot ro,"l'
'
,*'t L:,!'"
ll
,^r"*,U,, &"
7uu
at-"-letlwn fvv'1'ti"-
&'o"n f'o'e
')
e '
'i""ia,tk-, "
t- t,u
i.phtr ol-orl,fo
/)
p
t, :3 6.
Exam4,pages of
i r"^
- W te the balancedequationfor the reactionof Cr(OH)r with ClO
lq"bgSts-rolu!-ol't
to
produce CrOa2-andCl.
(8 points)
I'f
+a
'-l
/" /
^,
t\
6r7;1;lu+t
ou
( r\ut1/
C= {t'ot 6d taaue
"r'|}t
tl
(-
///,o
+t42a
"nearmlz"''tt" s
S
C.
gr-"
(c/3*
c.n-u-t,s.,
"(
g"-)
6.(ov),
r
llL
--'-)
,o tt'
'
.,, L
+ t
t'r f
')
")
I
crlo't),
(-
tju'
--5 C.oi
s Ql'1,
t7-
f
,.JuJh,on
0t6'
-"+
u-
z{
l' z t+f
y Zo(+-
/-
(
2e'rA
---, U't-
7oR
a
----)
(E
U-
l-z
(rc,
3ai^
t'llu)
o l+'
-t^t
I'a"e- h^ l[
re uc ttoa <
cunc(
Na'r
6Qo
f-o
6otao."
rhe
('but
t'/'u(li/|.
F
x- hbl(
reL('ho' t
-)r. S
I
rednndu"l'
sfe<"'c
p le i'fa>n s
ia
fitP
l-c&ot+\
'vL
u'n.-
r
,6e:
l'3 u 0- i-7'di{
---->
TCrot- fz{rt'o
+.,e{ | tu'l- t{r{:
]C"U*+
4ot1- t
3ao
-t r.-n?-*
{t1"r)
r 3(1'
,A
l l
v\
h
Exam4, page 7 of
12.A 1.00-9sampleofcarbonfrom thebiosphereshows9.20x 10' disintegrations
perhour, If
a 1.00-gsample
^of
charcoal
(a form ofcarbon)foundby archaeologists
in a cavein Slovenia
shows
5.50x 10' disintegratiorsin 24.0hous, whatis theageofthe charcoalsample?
Carbon-14hasa half-lifeof 5.73x 10'
years. (10 points)
pu. ol 4'1inl-<1.'
/
Nr-t,
'
p<,,
h'$r
, /
N-\
n
(4a o{ ol,t
/t""..,\
--
t
.0-
\f, )
=
x^^
Co,,;.
no,op d,,1/hrl
lr-- +2-
.- AL
.
.... l,Lo?V
ytl"/f'
1
d,L
f:Vs x to' yt-
1
1
YL;
/;')
t
t Y t
;,t
Z'l
/.)
( vrl'^,"1"'
-('ur'vX
r/r,/f
,M'
"
l' 0
L.t,
*,ot d,"t'"|
T.zo xto'Ar''
l"lf
x tD
/)
[
Exam4, page8 of
- Oxalate
(CzO+'-, abbreviated"ol') serves
asa bidentateligaud,asshown below.
Y
-ot
C €O
abbreviateda
--"
/
ll
o
a. Drawthegeomehicalisomersof [Cr(oxXHzO)z]-.
(8 points)
\ ru ,,l-"
't
\ bzi s;
\
'''
\
e'"^:
)'
Of the isomersyou drewin Parta, areanyof themchiral? Ifyes, identifr anychiral
isomers. (5 points)
V"n, hn
cLE
)so''1c/'
'
c'h;'ol
;p
/'"
lwo
n.nsnp".'1nf
.,so
(o
le v'ir-wt' ;n.Xzs
/
--
l" i-, I
I l'"',it:' l
ivl'*u I
\ .r I
l^
:i i1-'
^.
^,.r,,
I
