The volume of the nitrogen container is less than the

The volume of the
nitrogen container is less
than the volume of the
argon container.
QUESTION 4
“Ethanol boils at 78.5 deg C. If
10 g of sucrose (C12H22O11) is
dissolved in 150g of ethanol, at
what temperature [deg C] will the
solution boil? Assume Kb=1.20
deg C/m for the alcohol."
78.73
78.5
0.23
100.23
QUESTION 5
"When a deliquescent substance
is exposed to air, it"
a. loses water of hydration.
b. crystallizes.
c. becomes moist
d. oxidizes.
QUESTION 6
""Electrons added to atomic
orbitals of the same energy will
remain unpaired with parallel
spins until the subshell is more
than half-filled"" is a statement
of "
Hund's rule.
the Aufbau principle.
the Pauli exclusion
principle.
the periodic law.
QUESTION 7
"Magnesium oxide, MgO, is an
important industrial material.
Which of the following is one of
its uses? "
furnace bricks
construction material

toothpaste abrasive
antacid
QUESTION 8
Xenon forms several compounds
with oxygen and fluorine. It is the
most reactive non-radioactive
noble gas because
it has the lowest ionization
energy of these noble
gases.
its effective nuclear
charge is lower than the
other noble gases.
it has the highest electron
affinity of these noble
gases.
it has the highest
electronegativity of these
noble gases.
QUESTION 9
Which of the following is not a
state function?
work
internal energy
volume
pressure
QUESTION 10
Calculate q when 28.6 g of water
is heated from 22.0°C to
78.3°C.
6.74 kJ
0.385 kJ
1.61 kJ
9.37 kJ
QUESTION 1
Use Hess's Law to calculate the
enthalpy change for the reaction
WO
3
(s) + 3H
2
(g) → W(s) +
3H
2
O(g)
from the following data:
2W(s) + 3O
2
(g) →
2WO
3
(s) ΔH = -1685.4 kJ
2H
2
(g) + O
2
(g) →
2H
2
O(g) ΔH = -477.84 kJ
252.9 kJ
364.9 kJ
125.9 kJ
1207.6 kJ
QUESTION 2
Use the following data to
calculate the standard heat
(enthalpy) of formation, ΔH°
f
, of
manganese(IV) oxide, MnO
2
(s).
2MnO
2
(s) → 2MnO(s) +
O
2
(g) ΔH = 264 kJ
MnO
2
(s) + Mn(s)
→ 2MnO(s) ΔH = -240 kJ
-504 kJ
-24 kJ
504 kJ
-372 kJ
QUESTION 3
Which of the following is a
correct set of quantum numbers
for an electron in a 3d orbital?
"n = 3, l = 2, ml = -2"
"n = 3, l = 3, ml = +2"
"n = 3, l = 2, ml = 3"
"n = 3, l = 1, ml = +3"
QUESTION 4
Which of the following elements
has the smallest atomic radius?
Ne
Li
Rb
Xe
QUESTION 5
Predict the products for the
following set of reactants. Li(s) +
H2O(l) ?
Li+(aq) + H2(g) + OH-(aq)
Li+(aq) + H2(g) + O2(g)
LiH(s) + O2(g)
Li+(aq) + H2O2(aq)
QUESTION 6
Which of the following contains
covalent bonds?
IBr
BaO
Mg
LiBr
QUESTION 7
The elements from Groups 1A(1)
and 2A(2) are

strong reducing agents.
strong oxidizing agents.
amphoteric
strong bases
QUESTION 8
Raoult's Law relates the vapor
pressure of the solvent above
the solution to its mole fraction in
the solution. Which of the
following is an accurate
statement?
Raoult's Law works best
when applied to dilute
solutions.
Raoult's Law applies
exactly to all solutions.
Raoult's Law works best
when applied to
concentrated solutions.
Raoult's Law applies only
to non-ideal solutions.