Chem 101
Exam
2
Name:_____________________________________
Please put each of your answers on the front cover to make it easier for grading.
I will also check in the test booklet for
problems that require calculations. If the answer is wrong, partial credit will be given whenever possible.
All questions are
worth the same amount.
You must have calculations present within the test to get credit for an answer even if the answer is correct
.
1
0.035 moles
2.1 x 10
22
molecules
7.8 atm
2
3.19 x 10
19
J
192 kJ/mol photon
4.81 x 10
14
Hz
3
4 or 14(using d electrons)
[Kr]5s
2
4d
10
5p
2
Could be either, metalloid
If cation, smaller, if anion bigger
P, 2 electrons
4
780 kJ/mol
390 kJ/mol Fe
A property that is path independent
Δ
H,
Δ
U
5
103 nm
Energy released, sign is 
More stable
At a lower energy level
6
5020 J
75.2 g
Isolated (ideally)
No heat or matter escapes
7
CH
4
(g) + 2O
2
(g)
→
CO
2
(g) + 2H
2
O(l)
370L
22.4L
8
f
7orbitals
L=3
M
l
= 3, 2, 1, 0, 1,2,3
Orbital shape
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View Full DocumentConstants
Conversions
Equations
Equations
n = 6.02 x 10
23
/mol
T (K) = t (0ºC) + 273.15
d = m / V
RT = 2/3
.
N
A
.
mu
2
= 2/3
.
N
A
.
E
k
g = 9.807 m/s
2
1N = 1kg m/s
2
P = g
x d
x h
u
rms
=
(3RT)/M
R = 0.0821 L atm / mol K
P = N/m
2
= kg / ms
2
d
Hg
x h
Hg
= d
l
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 Spring '07
 Geldart
 Atom, 75.2 g, 390 kJ

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