1) The specific heat of bromine liquid is 0.226 J/g-K. The molar heat capacity (in
J/mol-K) of bromine liquid is ________.
A) 707 J/mol-K
B) 36.1 J/mol-K
C) 18.1 J/mol-K
D) 9.05 J/mol-K
E) 0.226 J/mol-K
2) The average rate of appearance of B between 20 s and 30 s is ________ mol/s.
A) +1.5 x 10-3
B) +5.0 x 10-4
C) -1.5 x 10-3
D) +7.3 x 10-3
E) -7.3 x 10-3
3) The element X has two naturally occurring isotopes. The masses (amu) and %
abundances of the isotopes are given in the table below. The average atomic mass of the
element is ________ amu.
A) 30.20
B) 33.20
C) 34.02
D) 35.22
E) 32.73
4) Electronegativity ________ from left to right within a period and ________ from top
to bottom within a group.
A) decreases, increases
B) increases, increases
C) increases, decreases
D) stays the same, increases
E) increases, stays the same
5) Round the number 0.00637 to two significant figures.
A) 0.0064
B) 0.006
C) 0.00637
D) 0.0
E) 0.0063700
6) ________ is a polysaccharide.
A) Cellulose
B) Galactose
C) Ribose
D) Sucrose
E) Uracil
7) What is the final stage in municipal water treatment?
A) treatment with ozone or chlorine
B) course filtration through a screen
C) addition of CaO/Al2(SO4)3 and settling
D) sand bed filtration
E) aeration
8) Which of the following statements is false?
A) Internal energy is a state function.
B) Enthalpy is an intensive property.
C) The enthalpy change for a reaction is equal in magnitude, but opposite in sign, to the
enthalpy change for the reverse reaction.
D) The enthalpy change for a reaction depends on the state of the reactants and
products.
E) The enthalpy of a reaction is equal to the heat of the reaction.
9) What is the charge of the central metal ion in Ca3[Fe(CN)6]2?
A) 0
B) 1+
C) 2+
D) 3+
E) 6+
10) An atom of 118Xe contains ________ neutrons.
A) 54
B) 172
C) 64
D) 110
E) 118
11) An object measuring 0.4500 kilograms will have a mass of ________ grams.
A) 450.0
B) 0.0004500
C) 45.00
D) 4.500
E) 2222
12) Which structure below represents an amine?
A)
B)
C)
D)
E)
13) Which of the following expressions is the correct equilibrium-constant expression
for the equilibrium between dinitrogen tetroxide and nitrogen dioxide?
5N2O4(g) 10NO2 (g)
A) [NO2]10/[N2O4]5
B) [N2O4]10/[NO2]5
C) [NO2]5/[N2O4]10
D) [NO2]5/[N2O4]5
E) [N2O4]5/[NO2]5