Lab Section 1C
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Subject
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Date
Oct 30, 2023
Type
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4
Uploaded by jlopez8898
REPORT
OF
LAB
1C:
Name_yJullanne
Lopez
Group
#
Lab
Section:
Date:
_10[2
!zs
Part
1:
Density
of
copper
A.
Copper
#1
1.
Mass
(grams)
\
\.4
(Z)
2.
Starting
volume
of
graduated
cylinder
(mL)
10.0mL
3.
Volume
of
graduated
cylinder
after
adding
copper
{mL)
]
\
6
AL
L
4.
Volume
of
copper
a
—10:0mL
Z[|.5M
fl
g
A
.o
mL
eyl
5.
Density
of
copper
#1
(show
work)
W\,
c)
-
7.Lglmb
Density
=
——
VS
wml
9
volume
B.
Copper
#2
1.
Mass
(grams)
2.
Starting
volume
of
graduated
cylinder
(mL)
(
D
0
L
3.
Volume
of
graduated
cylinder
after
adding
copper
(mL)
\
%
.
0
m
L
&
"°'“;',;§‘j‘°;§,""e’
13.0n=
1D.0OmL
=
3.0m
5.
Density
of
copper
#2
(show
work)
20,9
et
L
amass,
D
-—\q.OY\’\L—
Densioy
=
volume
B
O@\
L
33
C.
Copper
#3
1.
Mass
(grams)
‘C)
.
L{
S
2.
Starting
volume
of
graduated
cylinder
(mL)
\Owa
L
3.
Volume
of
graduated
cylinder
after
¥
B3
\Lw
L
adding
copper
(mL)
4.
Volume
of
copper
(C3-C2)
[l
2Bl
=
Zwail
5.
Density
of
copper
#3
(show
work)
mass
it
&
volume
\_{),f.l—fif
:&7.75'\%L}
7
mlL
D.
Standard
deviation
of
results
1.
Average
density
(u)
=
A5+
B5
+C5
3
Tt
&
£
-_%~\3lmt
2.
Deviations
from
y,
squared
(A5
-
n)?
(B5-p)?
(C5-p)?
(.
0L-%-0=
0.250q
ImL
@-%-1)"=
0.3\
q|mL
(77
-3
Dm0
G
fml
3.
Variance
Add
the
three
values
calculated
in
D2
and
divide
by
2
0.\
SIW\L
4.
Standard
deviation
VD3
Ofl%slmt
34
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The atomic molar mass of some elements, as shown in the periodic table, is as follows.
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Atomic molar mass of some elements
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Element Atomic Molar Mass (g/mol)
P Flag question
calcium
40.08
carbon
12.01
hydrogen
1.01
oxygen
16.00
nitrogen
14.01
sodium
22.99
The molar mass of calcium nitrate is
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O 164.10 g/mol.
O 132.10 g/mol.
O 102.09 g/mol.
Q 142.17 g/mol.
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What is the correct equation for percent difference?
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1.7 moles Fe
1 mole O.
224 LO,
4 moles Fe
1 mole O.
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O STATES OF MATTER
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Hydrogen chloride gas and oxygen react to form water vapor and chlorine gas. What volume of chlorine would be produced by this reaction if 7.8 cm² of
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Which of the following compounds can form intermolecular hydrogen bonds?
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a) 61 g/mol to 77 g/mol
b) 68.7 +/- 8.2 g/mol
c) 69 +/- 8 g/mol
d) 68.7 +/- 8 g/mol
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Li
Be
1-5
B
N
1-0
2-0
2-5
3-0
3-5
Na
Mg
Al
Si
S
CI
0-9
1-2
1-5
1-8
2-1
2-5
Se
3-0
K
Ca
Ga
Ge
As
Br
0-8
Rb
1-0
1-6
1-8
2-0
2-4
2-8
Sr
In
Sn
Sb
Te
I
0-8
1-0
1-7
1-8
1-9
2-1
Po
2-5
Cs
Ba
TI
Pb
Bi
At
0-7
0-9
1-8
1-9
1-9
2-0
2-2
Study the chart of electronegativity values. Choose the correct observation,
O A. As the atomic number increases across a period, electronegativity decreases.
O B. As the atomic number increases across a period, electronegativity also increases.
O C. Metals have the highest electronegativity.
OD Elements with the most rings have the highest electronegativity.
DELL
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Part B Complete previous part(s)
Part C
The reactant concentration in a first-order reaction was 9.80x 10-2 M after 35.0 s and 8.60x10-3 M after 85.0 s
What is the rate constant for this reaction?
Express vaur answer with the annronriate nits Indicate the munltinlication of units s necessan
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Enter your answer in the provided box.
A 34.51-g stainless steel
containing 116.9 g of water at 19.55°C. If the specific heat of the ball bearing is 0.474 J/ (g• °C),
calculate the final temperature of both the water and steel when they equilibrate. Assume the
calorimeter to have negligible heat capacity.
bearing at 115.81°C is placed in a constant-pressure calorimeter
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