Final Exam Form A, CHEM 001 Spring 2013.
Name: ___________________________
Date: __________________
Please note that you may need to balance the chemical equations given in the question(s)
below before attempting to answer the question(s).
1.
Element Q has three isotopes, which are listed in the table below. What is the isotopic
mass of 23Q if the average atomic mass of element Q is 22.23 amu?
Isotopes of Q
22
Q
23
Q
24
Q
a) 21.90
2.
d) 22.89
b) 31.4 KJ
c) 27 KJ
d) 3.14 KJ
The following systematic names: nitrogen dioxide, sodium oxide, phosphorous
trifluoride and iron (II) nitrate are represented by which series of chemical formulas?
a)
b)
c)
d)
e)
4.
c) 22.21
Isotopic Mass
21.95 amu
?
23.89 amu
How many kilojoules are required to change the temperature of 10.0 g of water from
25.0°C to 100.0°C? (Note: the specific heat of water (l) is 4.18 J/g °C)
a) 20.5 KJ
3.
b) 24.00
% Abundance
79.25 %
12.23 %
8.52 %
N2O4, NaO, PF3 and Fe(NO3)2
NO2, NaO, PF3 and FeNO3
NO2, Na2O, PF3 and Fe(NO3)2
NO2, Na2O, PF3 and FeNO3
NO3, Na2O, PF6 and FeNO3
If the total mass of reactants in a chemical reaction, which goes completely to
products, is 87.9 grams; how many grams of products will there be when the reaction
is complete?
a) 88 g
b) 87.9 g
c) 44.0 g
Page 1 of 3
d) 87 g
Final Exam Form A, CHEM 001 Spring 2013.
5.
What is the percent composition of sodium, Na, in Na2SO4?
a) 16.19 %
6.
b) CH5N
c) C2H7N
a) 74.10 g
H2O 
b) 37.05 g
Ca(OH)2
c) 62.99 g
d) 31.49 g
b) 250 g
c) 212 g
d) 246 g
Which species listed below will possess the smallest bond angle?
a) NO2-
10.
d) C2H5N
How many grams of Mg3(PO4)2 are present in 1250 mL of a 0.750 M Mg3(PO4)2
solution?
a) 175 g
9.
d) 24.30 %
How many grams of Ca(OH)2 will be produced when 28.04 g of CaO react with
18.02 g of H2O if the reaction yield is 85.00%?
CaO +
8.
c) 46.47 %
A compound contains 38.66% C, 16.25% H, and 45.09% N. The empirical formula of
the compound is…
a) HCN
7.
b) 32.37 %
b) CO2
c) H2O
d) SO2
Which species listed below would you expect to have the lowest ionization energy?
a) Na
b) Li
c) Fr
Page 2 of 3
d) Rb
Final Exam Form A, CHEM 001 Spring 2013.
11.
Which ion listed below has the smallest atomic radius?
a) Cl
12.
b) F
a) 32.7 mL
NaOH (aq) 
b) 12.8 mL
c) 50.0 mL
Na2SO4 (aq) +
H2O (aq)
d) 25.5 mL
The electron configuration for a nitride anion, N-3, is …
a) 1s2 2s2 2p6
b) 1s2 2s2 2p4
d) 1s2 2s2 2p63s2 3p3
14.
d) N
How many milliliters of a 0.250 M H2SO4 solution will be required to completely react
with 25.5 mL of a 0.250 M NaOH?
H2SO4 (aq) +
13.
c) O
c) 1s2 2s2 2p2
e) 1s2 2s2
What volume will 0.0714 moles of Ne occupy if the gas exerts a pressure of
485 torr at a temperature of 176 C?
a) 2.83 L
b) 1.33 L
c) 4.12 L
d) 5.12 L
.
15.
What volume of a 2.50 M NH3 solution is needed to prepare 100.0 mL of 0.750 M
NH3?
a) 30.0 mL
b) 52.0 mL
c) 50.0 mL
Page 3 of 3
d) 100.0 mL