Chem
1442
Prc-Lnb
Quiz
UTA
-
642
~
Name:
fi.11~!,
lt>C)
l)at
c:
______
____
_ _
Section:
Chem
1442
UTA-642
Quit
l.
Suppose
you
made
a
temperature
versus
time
graph,
simi
lar
to
last
week's
lab
in
Excel
and
found
the
equations
of
the
two
best-fit
lines,
y
-0.074x
+
22.75
and
y
-0.0079x
+
4.98.
~~s.
-2-
a.
Find
the
time
at
which
the
solution
froze.
(IO
pts)
b.
-O.O,'/J(
,._;t.79'S'
.=
-
b,0079'Jc
-f4
Q~
--
11
T1!C
6.
OCtea
l1t
Find
the
freezing
point
of
the
solution.
(10
pts)
c.
If
the
known
freezing
point
of
the
solution
is
10.°C,
does
your
calculated
freezing
point
match?
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- Fall '08
- ROGERS
- Chemistry, pH, Rate equation, 1 m, 10 pts, 20 pts, 30 pts, l.
