Honors Test 1: Laboratory Measurement and Conversions
Name:
1.
Date:
A piece of copper metal is correctly placed on a
triple-beam balance. The riders are at the zero
mark except for the rider on 0–10 gram beam
which is located at the position shown. What is
the mass of the copper metal?
A.
0.455 g
B.
4.56 g
C.
0.55 g
3.
The diagram shown represents a portion of a
triple-beam balance. If the beams are in balance,
with the riders in the position shown, what is the
total mass in grams of the object being massed?
D. 5.50 g
2.
The diagram shown represents a portion of a
buret. What is the reading of the meniscus?
A.
39.2 mL
B.
C.
40.7 mL
D. 40.9 mL
4.
39.5 mL
page 1
A.
460.62
B.
466.20
C.
466.62
D. 460.20
The diagram pictured shows a portion of a buret.
What is the reading of the meniscus?
A.
31.28 mL
B.
31.72 mL
C.
32.28 mL
D. 32.72 mL
5.
The diagram represents a metal bar and two
centimeter rulers, A and B. Portions of the rulers
have been enlarged to show detail. What is the
greatest degree of precision to which the metal bar
can be measured by ruler A and by ruler B ?
7.
The accompanying diagram represents a portion of
a 100-milliliter graduated cylinder.
What is the reading of the meniscus?
A.
to the nearest tenth by both rulers
B.
to the nearest hundredth by both rulers
C.
to the nearest tenth by ruler A and to the
nearest hundredth by ruler B
8.
D. to the nearest hundredth by ruler A and to the
nearest tenth by ruler B
6.
Which quantity is equivalent to 50 kilocalories?
A.
5000 cal
C.
5
103 cal
B.
9.
0.05 cal
D. 5
104 cal
A.
35.0 mL
B.
C.
44.0 mL
D. 45.0 mL
Which temperature is equal to 120. K?
A.
153 C
C.
+293 C
B.
120. C
D. +393 C
Which unit is used to express the pressure of a
gas?
A.
page 2
36.0 mL
mole
B.
joule
C.
kelvin
D. pascal
Honors Test 1: Laboratory Measurement and Conversions
10.
Which quantity expresses the sum of the values
below to the proper degree of precision?
13.
2:1 g
33:566 g
+ 12:22 g
A.
47.886 g
B.
C.
47.9 g
D. 48.0 g
12.
If the rules for signi cant gures are observed in
the addition example shown, how should the total
for this addition be rewritten?
A.
5,610.00
B.
C.
5,610.34
D. 5,610.3
A.
0.012 g
B.
0.125 g
C.
1,205 g
D. 12,050 g
47.89 g
14.
11.
Which measurement, contains a total of three
signi cant gures?
5,610.340
35:7
432:33
+ 5;142:312
5;610:342
3.000 g/mL
B.
C.
3.0 g/mL
D. 3 g/mL
A.
75.7 mL
B.
75.70 mL
C.
84.3 mL
D. 84.30 mL
In a laboratory exercise to determine the density
of a substance, a student found the mass of the
substance to be 6.00 grams and the volume to be
2.0 milliliters. Expressed to the correct number of
signi cant gures, the density of the substance is
A.
The diagram shows a section of a 100-milliliter
graduated cylinder. When the meniscus is read
to the correct number of signi cant gures, the
volume of water in the cylinder would be recorded
as
15.
3.00 g/mL
page 3
Which measurement has the greatest number of
signi cant gures?
A.
6.060 mg
B.
60.6 mg
C.
606 mg
D. 60600 mg
Honors Test 1: Laboratory Measurement and Conversions
16.
Given: (52.6 cm)(1.214 cm). What is the product
expressed to the correct number of signi cant
gures?
A.
64 cm2
C.
63.86 cm2
B.
63.9 cm2
D.
63.8564 cm2
20.
Which piece of laboratory equipment is represented
by the diagram?
A.
crucible tongs
B.
beaker tongs
C.
test tube clamp
D. pinch clamp
17.
The volume of a gas sample is 22.4 liters at STP.
The density of the gas is 1.34 grams per liter.
What is the mass of the gas sample, expressed to
the correct number of signi cant gures?
A.
18.
16.7 g
B.
17 g
C.
30 g
21.
D. 30.0 g
The measurement 0.41006 gram, rounded to three
signi cant gures, is expressed as
A.
0.41 g
B.
C.
0.4100 g
D. 0.4101 g
A.
Add the water to the acid quickly.
B.
Add the the water to the acid and shake
rapidly.
C.
Add the water to the acid while stirring
steadily.
D. Add acid to the water while stirring steadily.
0.410 g
22.
19.
Which is the safest technique for diluting
concentrated sulfuric acid?
The safest technique for diluting a concentrated
acid is to stir constantly while pouring the
Which laboratory glassware is shown in the
diagram?
A.
Florence ask
A.
acid into the water slowly
B.
Erlenmeyer ask
B.
water into the acid slowly
C.
distilling ask
C.
acid into the water quickly
D. volumetric ask
D. water into the acid quickly
page 4
Honors Test 1: Laboratory Measurement and Conversions
23.
24.
During a laboratory activity, a student combined
two solutions. In the laboratory report, the student
wrote “A yellow color appeared.” The statement
represents the student's recorded
A.
conclusion
B.
C.
hypothesis
D. inference
26.
observation
A.
C.
8.54%
D. 13.5%
C.
80.0
D. 87.1
Measure the length of this nail to the nearest mm.
The length of the nail is
A student determined in the laboratory that one
mole of KMnO4 had a mass of 171.54 grams.
The mass of one mole of KMnO4 in an accepted
chemistry reference is 158.04 grams. What is the
percent error of the mass of one mole of KMnO4
as determined by the student?
B.
14.8
28.
29.
0.787%
B.
Find the distance from A to B to the nearest
millimeter.
Describe one laboratory safety procedure that
should be used if a drop of the KOH(aq) is spilled
on the arm of the student.
A.
12.9
27.
Base your answer(s) to the following question(s)
on the information below and on your knowledge
of chemistry.
During a laboratory activity, a student
places 25.0 mL of HCl(aq) of unknown
concentration into a ask. The student adds
four drops of phenolphthalein to the solution
in the ask. The solution is titrated with
0.150 M KOH(aq) until the solution appears
faint pink. The volume of KOH(aq) added is
18.5 mL.
25.
According to an accepted chemistry reference, the
heat of vaporization of water is 540 calories per
gram. A student determined in the laboratory that
the heat of vaporization of water was 620 calories
per gram. The student's results had a percent error
of
mm.
Use the picture below to answer the following
question.
What is the length of the paper clip to the nearest
centimeter?
7.87%
A.
page 5
2
B.
3
C.
5
D. 6
Honors Test 1: Laboratory Measurement and Conversions
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Honors Test 1: Laboratory Measurement and Conversions
1.
Answer:
Points:
D
1
15.
Answer:
Points:
A
1
2.
Answer:
Points:
B
1
16.
Answer:
Points:
B
1
3.
Answer:
Points:
B
1
17.
Answer:
Points:
D
1
4.
Answer:
Points:
A
1
18.
Answer:
Points:
B
1
5.
Answer:
Points:
C
1
19.
Answer:
Points:
A
1
6.
Answer:
Points:
D
1
20.
Answer:
Points:
A
1
7.
Answer:
Points:
A
1
21.
Answer:
Points:
D
1
8.
Answer:
Points:
A
1
22.
Answer:
Points:
B
1
9.
Answer:
Points:
D
1
23.
Answer:
Points:
B
1
10.
Answer:
Points:
C
1
11.
Answer:
Points:
D
1
12.
Answer:
Points:
C
1
13.
Answer:
Points:
B
1
14.
Answer:
Points:
B
1
24.
Answer:
9/23/2019
The student should immediately place
his/her arm under running water to dilute
and wash away the KOH(aq).
Points:
Tell the teacher.
1
25.
Answer:
Points:
C
1
26.
Answer:
Points:
B
1
27.
Answer:
Points:
68 mm
1
Teacher's Key
28.
Answer:
Points:
155 mm
1
29.
Answer:
Points:
B
1
Page 2