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Chemistry 116: General Chemistry
Syracuse University Project Advance
Exam #4, Spring 2007
Name
Date
1) If a constant current of 5.0 amperes is passed through a cell containing Cr3+ for 1.0 hour, how
many grams of Cr will plate onto the cathode?
a)
b)
c)
d)
e)
0.054 g
1.5 g
3.2 g
9.7 g
93 g
2) Alpha particles are
a) extremely penetrating light quanta
b) electrons from the nucleus
c) electrons from outside the nucleus
d) helium molecules
e) helium +2 ions
3) The sum of the masses of two hydrogen atoms (mass number 1) and two neutrons is
4.0330. Why does this differ from the mass of a helium atom (4.0026)?
a) Some hydrogen atoms are heavier than others
b) The difference is the binding energy of the helium nucleus
c) The difference is the experimental error in the measurement of the masses
d) Because free neutrons have a very brief existence, we can not measure their mass
directly and must use and average value that doesn’t fit every individual case
accurately.
e) Since there is nothing in common between the helium atom and the hydrogen atom,
there is no reason to expect the agreement.
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Spring 2007 Exam #4
4) Which fundamental particle is a product of the following nuclear reaction:
45
Sc21
+
4
He2 
48
Ti22 + ?
a) deuteron
b) positron
c) proton
d) neutron
e) electron
5) Choose the incorrect statement concerning gamma rays
a) They have no mass
b) They have no charge
c) They have no energy
d) They are emitted by nuclei
e) They move with the velocity of light
6) The following reaction is an example of
2
H + 2H  3He + 1n + energy
a) a nuclear fission reaction
b) a breeder reaction
c) a nuclear voltaic reaction
d) a nuclear fusion reaction
e) none of these
7) The half life of 14C is 5570 years and living things in equilibrium with the atmosphere
averaged 15.3 counts/min. g of C. With which of the following eras would you associate
an axe handle which had a 14C activity of 4.0 counts/min. g ?
a) Middle ages (1100 AD)
b) Roman Era (200 BC)
c) Age of the Pharaohs (3000 BC)
d) Pre-history (9000BC)
e) Cave Man (30000 BC)
8) Radium undergoes alpha decay. The product of this reaction also undergoes alpha decay.
What is the product of this second decay reaction?
a) Po
b) Rn
c) U
d) Th
e) Pa
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9) Calculate the amount of energy (MeV) evolved in the fission of uranium-235 according to
the equation:
235
U92 
90
Sr38 +
144
Cs58 + 1n0 + 40e-1
Nuclear masses are in atomic mass units:
235
U92 234.9934
Sr38 89.8864
144
Cs58 143.8816
1
n0
1.0087
0
e-1
0.00055
(Conversion factor for E=mc2 is 931 MeV/amu)
90
a) 146.5 MeV
b) 286.4 MeV
c) 59.3 MeV
d) 199.8 MeV
e) 309.1 MeV
10) Which of the following compounds contains carbon atoms with sp2hybrid atomic orbitals?
a) propyne
b) propene
c) propane
d) propanol
e) none of the above
11) Arrange the following three substances in order of increasing solubility in hexane (C6H14):
A) CH2OHCH2OH
B) C10H22
C) H2O
a) ABC
b) ACB
c) CAB
d) BCA
e) BAC
12) A straight chain alkyne has eight carbon atoms. Its molecular formula is
a) C8H8
b) C8H12
c) C8H14
d) C8H16
e) C8H18
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Spring 2007 Exam #4
13) Which of the following alcohols is a tertiary alcohol?
a)
b)
c) HOCH2CH2OH
d) CH3CH2CH2OH
e)
14) Which is the correct structure for para-dihydroxybenzene?
OH
OH
OH
A
C
OH
E
OH
OH
OH
OH
OH
D
B
OH
15) The functional group of an alkene consists of
a) 2 bonds
b) 1  and 1  bond
c) 2  bonds
d) 2  and 1  bond
e) 3  bonds
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16) Geometric isomerism is usually found in
a)
b)
c)
d)
e)
aldehydes.
alkanes.
alkynes.
alkenes.
alcohols.
17) The following compound has which functional groups?
O
O
H3C
a)
b)
c)
d)
e)
C
H2
N
H
CH3
ether and amine
ester and amide
ether and amide
ester and amine
alcohol and ketone
18) How many H atoms are needed to complete the following alkane structure?
C
C
C
a)
b)
c)
d)
e)
C
C
6
8
9
10
12
19) Which functional group most commonly undergoes addition reactions?
a)
b)
c)
d)
e)
alkyne
alcohol
ester
amine
aromatic ring
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20) What is the IUPAC name for the following compound?
H3C
CH2
H
C
H2C
a)
b)
c)
d)
e)
CH
C
H2
CH3
4-ethyl-1-pentene
2-ethyl-4-pentene
4-methyl-1-hexene
3-methyl-5-hexene
2-(2-propenyl)butane
21) Which one of the following structures is incorrect?
H
O
H
C
O
H
A
H
C
C
Cl
H
C
O
H
C
H
H
B
H
H
C
C
H
H
H
H
H
H
O
N
C
C
H
H
H
C
C
E
H
Br
O
H
Br
D
22) The monomer unit for polyvinylchloride (PVC), used in pipes for plumbing, is vinyl
chloride.
H
H
C
H
C
Cl
What is the formula for the repeating unit of this polymer?
(a)
(b)
H
H
C
C
Cl
H
Cl
C
C
H
Cl
H
H
C
C
C
C
H
Cl
Cl
Cl
H
Cl
C
C
Cl
(d)
(e)
(c)
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Spring 2007 Exam #4