Name:
....Lf(-=--~-~----
CHEM 1110.20787
Test 2, Form A
Spring2013
lA
VIllA
1
2
H
l.008 JIA
3
2
He
5
4
Li
Be
6.94
9.01
12
Mg
22.99 24.31
7
c
N
IVB
VB
VIB
VIIB
VlliB
m
10
9
0
16.00
4.00
F
Ne
19.00
20.18
14
15
16
17
18
13
p
AI
Si
Ar
a
26.98 28.09 30.97 32.06 35.45 39.95
s
Na
lliB
VJIA
VIA
8
10.81 12.01 14.01
11
3
6
B
VA
JVA
lllA
liB
4
23
28
29
33
34
30
21
24
25
20
22
26
27
31
32
35
36
Kr
Ni
Cu
As
Br
Sc
1i
v
Cr Mn Fe
Co
Zn
Ga
Ge
Se
K
Ca
39.10 40.08 44.96 47.90 50.94 52.00 54.94 55.85 58.93 58.71 63.55 65.37 69.72 72.59 74.92 78.96 79.90 83.80
5
43
46
47
48
50
51
52
53
54
40
39
42
44
45
49
41
37
38
y
Pd Ag
Sb
Te
I
Cd
Sr
Zr
Nb Mo Tc
Ru
Rh
1n
Sn
Xe
Rb
85.47 87.62 88.91 91.22 92.91 95.94 [98] 101.1 102.9 106.4 107.9 112.40 114.8 118.7 121.8 127.60 126.90 131.30
19
71
73
72
Lu
Ta
Hf
132.9 137.3 175 178.5 181
55
6
7
Cs
56
Ba
78
79
83
84
86
76
77
80
81
82
85
Bi
At
Rn
Ir
Pt
Au
n
Pb
Po
Os
Hg
183.9 186.2 190.2 192.2 195.1 197 200.59 204.4 207.2 209 [2091 [2101 [222]
74
w
75
Re
107
111
114
115
116
103
104
105
113
106
108
109
110
112
87
88
Bh Hs Mt Ds Rg Uub Uut Uuq Uup Uuh
Fr
Ir
Rf
Db Sg
Ra
[223J [2261 [2621 [2671 [2681 [271] [272] [270] [276] [281] [280] [285] [284] [289] [288] [293]
65
66
58
61
62
70
67
69
63
64
57
59
60
68
Pr
Nd Pm Sm Eu Gd 1b Dy
Ho
Er
Do
Yb
La
Ce
138.9 140.1 140.9 144.2 [145] 150.4 152 157.3 158.9 162.5 164.93 167.3 168.9 173
89
Ac
[227]
94
98
101
102
93
99
100
91
92
97
95
96
Pa
u Np Po Am Cm Bk Cf Es Fm Md No
232 [2311 238 [237] [244] [2431 [2471 [2471 [2511 [252] [2571 [2581 [259]
90
Th
118
Uuo
[294]
Part 1- Naming/Formulas (40 pts)
1.
2.
(20 pts) Name the following compounds:
pa.,-ium
phos ph 4--te
a.
Ba3(P04h
b.
Na 20
c.
SCI 3
d.
Fe(C2H302h
I rt> n (7:II:) Ct.. C. e.-~
e.
OF2
o xyJt-n d,-fj u.o r•'de
f.
ArF5
ar~tJn p~trltJ~/1! ori cle
g.
KBr
po~SSi V\..11'1 Prb mid~
h.
Cr2S3
i.
LiOH
j.
N20s
5odiv...wr o
)Cr' d~
-su.lffA..r tr; c;,h/o r lol e
te
c.J, ro rll,·L{ IY1 [nr) su.l f-J. de
l ;+ttiu.rn hydrox\ de
din i t-ro ~ ~Y"\ pe.-ntox:,Je
(20 pts) Give the chemical formula for each of the following compounds
f. Sodium carbonate
a. Zinc(ll) chromate
zn Gr-Of
b.
Disulfur dichloride
/Ja~ CD3
g.
Sa C.R:;,
c.
Nitrogen trioxide
CoU:L
h.
Ammonium fluoride
i.
tJJ-tq F
e.
Magnesium hydroxide
mj {oft )61-
Dichlorine monoxide
c1~o
tJo,
d.
Cobalt(ll) chloride
Sulfur hexafluoride
sF&
j.
Carbon dioxide
~O;u
Part 2- Quantum numbers, electron configurations, periodic trends (20 pts)
1. (5 pts) Write all the possibl.:tantum numbers for n
n..
m,.g_
3
=3.
-z.,-1}0, t,;;...
-t,o) 1
;;l.
b
2. (10 pts) Write the noble gas electron confiJration for the following atoms and ions. Identify if they are
paramagnetic or diamagnetic by circling the correct choice.
Noble Gas Configuration
Para or Diamagnetic
a. Cl
(1Jt13s~3p~
@ro
b. Cr
[ArJ 4s 3ds
@ro
c.
[Xe] hs
Cs
1
1
d. Se2-
[AIJt.}5 .:l _3d JO 7'f
e. Mn2+
~J
@ro
(p
Po([)
gcJ?
ffiro
3. (3 pts) Rank the following in order of increasing ionization energy: Si, C, S, F and Ca.
4. (2 pts) Rank the following in order of increasing atomic radii: F, S, and N.
Part 3 -Calculations (30 pts), show ALL work for credit.
1. (10 pts) What is the energy of light that has a frequency of 5.15 x 10tl4 s-1?
'\
£ ~hV::: (l9.(o~loxjo-~*. x5.l?xJD+ 1 ~s-~
r~
~.ttl '}. ,
o-t ct-:r-
2. (5 pts) What is the molecular formula of a compound that has an molar mass of 176.4 gfmol and an
empi~ca~ fH~ula~(~;~~I)
1f-b.~ J-/"'o J
L/t/: oq 3-/mol
-j-
==-
~ (woe) := JN .0'l 'Jlm 0 }
Lf
~C 1 ;~. Hz,,;z..1
L
.
3. (15 pts) Acetylsalicylic acid, C9Hs04, is the active ingredient in aspirin.
a. Calculate the molar mass of C9Hs04.
q C ::; '1 (l AJ. 0 J d-fmoV ;::. }0 8. 0 '1 3-IYKo J
err .::-S (1.00'8~/MolJ:::: ~. OloL-f-8-/~no}
L./ V ::: '-1 (I b. 00 't /mol) ::: ({; '/: 0 0 3/mol
4
{No. 10 ff/moO
b. Calculate the percent of oxygen in C9Hs04.
~IJ.DD~/m.o}
r
_ _____:u~-- x I 00 -- Q ?
C"2.o/
, ':J v /o
) BD./5 ~/mo/
c. One aspirin tablet can contain 0.250g of C9Hs04. How many molecules is this?
o.
;?.l)O
'3
C H; D
If B 11 )(
1mol t;J.k, 0.; /p.(Yldx/0:, 3 mo!a&L~s(jffed;
/8()./?JJtffr/J.; X
J mo I
-::.. 8, ?> lP xI 0 ;;Lc:noleLLLfts ~ H8 0~
Part 4- Short Answer (10 pts), please print legibly.
1.
In an atom,
Va l {...h. ce
electrons participate in bonding and chemical reactions, but
-~C-=o_r-_e_____ electrons shield the nucleus.
2. Metals tend to form _ _CCA.:;-----'d-i~i_..:;'o'--'h'------ and nonmetals tend to form __,a./1..,..._=1_
.. O_h_S_ __
which attract to form ionic compounds.
3. A compound that holds a specific number of water molecules within its solid structure is called cf!l)
hydr~1e.
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