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State University of New York at Binghamton, Department of Chemistry Chemistry 108, Introductory Chemistry II, Exam 1, February 26, 2015 Version A$13.49
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State University of New York at Binghamton, Department of Chemistry Chemistry 108, Introductory Chemistry II, Exam 1, February 26, 2015 Version A
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State University of New York at Binghamton, Depart
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State University of New York at Binghamton, Department of Chemistry
Chemistry 108, Introductory Chemistry II, Exam 1, February 26, 2015 Version A
Write Version A on top of your Scantron. The Exam will be graded based on the version
written on the Scantron. Only non-graphing calculators are al...
2015 version a write version a on top of your scantron the exam wil
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State University of New York at Binghamton, Depart
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State
University
of
New
York
at
Binghamton,
Department
of
Chemistry
Chemistry
108,
Introductory
Chemistry
II,
Exam
1,
February
26,
2015
Version
A
Write
Version
A
on
top
of
your
Scantron.
The
Exam
will
be
graded
based
on
the
version
written
on
the
Scantron.
Only
non-‐graphing
calculators
are
allowed
on
this
Exam.
You
have
90
minutes
to
complete
this
exam.
DO
NOT
SEPARATE
THE
EXAM.
Answer
ALL
questions.
Fill
in
the
appropriate
selection
on
your
Scantron
form.
1. Which
of
the
following
will
have
the
largest
cation-‐anion
attraction?
a. NaF
b. NaCl
c. NaBr
d. NaI
e. CsCl
2. A
solution
is
prepared
by
adding
1.50
mol
glucose,
which
is
not
volatile,
to
3.50
mol
water.
What
is
the
vapor
pressure
of
this
solution
at
25
°C
given
that
the
vapor
pressure
of
pure
water
is
23.8
torr?
a. 7.00
torr
b. 16.7
torr
c. 10.2
torr
d. 7.14
torr
e. 34.0
torr
3. Which
statement
does
not
describe
a
simple
cubic
unit
cell?
a. It
results
from
square
packing
of
atoms
in
layers
b. The
atoms
lie
at
the
corners
of
a
cube
c. Each
atom
has
6
nearest
neighbors
d. The
stacking
pattern
can
be
represented
by
aaaaa
e. Each
unit
cell
contains
8
atoms
4. Arrange
the
three
ionic
compounds
sodium
chloride,
potassium
chloride,
and
rubidium
chloride
in
order
of
increasing
melting
point.
a. NaCl
<
RbCl
<
KCl
b. KCl
<
RbCl
<
NaCl
c. NaCl
<
KCl
<
RbCl
d. RbCl
<
KCl
<
NaCl
e. RbCl
<
NaCl
<
KCl
, 5. Coulomb’s
law
states
that
the
interaction
energy
between
ions
depends
____________
a. Only
on
the
ionic
charges
b. Only
on
the
distance
between
the
ions
c. Directly
on
both
the
ionic
charges
and
the
distance
between
the
ions
d. Directly
on
the
distance
between
the
ions
and
inversely
on
the
ionic
charges
e. Directly
on
the
ionic
charges
and
inversely
on
the
distance
between
the
ions
6. Which
of
the
following
unit
cells
has
the
highest
packing
efficiency?
a. Simple
cubic
b. Face-‐centered
cubic
c. Body-‐centered
cubic
d. Both
face-‐centered
and
body-‐centered
cubic
e. Simple,
face-‐centered,
and
body
centered
cubic
all
have
the
same
packing
efficiency
7. One
reaction
that
occurs
in
an
automobile
catalytic
converter
is
the
conversion
of
carbon
monoxide
to
carbon
dioxide.
How
could
the
rate
of
this
reaction
be
expressed
correctly
in
terms
of
the
rate
at
which
the
concentration
of
a
reactant
or
product
changes?
2CO(g)
+
O2(g)
→
2CO2(g)
a. Rate
=
Δ[CO]/Δt
b. Rate
=
-‐Δ[CO]/Δt
c. Rate
=
Δ[O2]/Δt
d. Rate
=
-‐½Δ[CO]/Δt
e. Rate
=
2Δ[CO2]/Δt
8. A
hydration
sphere
forms
around
an
ion
in
aqueous
solution
due
to
________________
a. Ion-‐ion
interactions
b. Dispersion
forces
c. Dipole-‐dipole
interactions
d. Ion-‐dipole
interactions
e. Ion-‐induced
dipole
interactions
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