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- 1. Multiple Choice
What is the correct answer for the calculation of a volume (in mL) with measured numbers
?0.22 mL
0.223 mL
57 mL
14.3 mL
- 2. Multiple Choice
In which of the following is the metric unit paired with its correct abbreviation?
centimeter / km
milliliter / mL
microgram / mg
kilogram / cg
- 3. Multiple Choice
The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is
13.0 g.
13 g.
13.071 g.
13.1 g.
- 4. Multiple Choice
Which of the following is a measurement of mass in the metric system?
centimeter
milliliter
Celsius
kilogram
- 5. Multiple Choice
What is the answer, with the correct number of significant figures, for this problem?
4.392 g + 102.40 g + 2.51 g =
109.30 g
109.302 g
109.3 g
109 g
- 6. Multiple Choice
The measurement 0.000 0043 m, expressed correctly using scientific notation, is
4.3 x 106 m.
4.3 x 10-7 m.
4.3 x 10-6 m.
4.3 m.
- 7. Multiple Choice
Which of the following numbers is the largest?
2.05 x103
2.05 x 105
2.05 x 10-12
2.05 x 108
- 8. Multiple Choice
How many significant figures are in the number 0.00208?
two
three
five
six
- 9. Multiple Choice
Which of the following is the basic unit of volume in the metric system?
centimeter
liter
meter
gram
- 10. Multiple Choice
Which of the following measurements has three significant figures?
510 m
0.005 m
0.510 m
0.051 m
- 11. Multiple Choice
Which of the following measurements are NOT equivalent?
150 msec = 0.150 sec
25 mg = 0.025 g
84 cm = 8.4 mm
183 L = 0.183 kL
- 12. Multiple Choice
A calculator answer of 423.6059 must be rounded off to three significant figures. What answer is reported?
420
423.6
424
423
- 13. Multiple Choice
The number 680 000 000 expressed correctly using scientific notation is
6.8.
6.8 x 108.
68 x 107.
0.68 x 106.
- 14. Multiple Choice
A value of 25°C is a measurement of
temperature.
volume.
distance.
mass.
- 15. Multiple Choice
5.21 cm is the same distance as
0.0521 m.
0.00521 km.
5.21 mm.
52.1 dm.
- 16. Multiple Choice
Which of the following numbers is the smallest?
4.0 x 10-12
4.0 x 10-6
4.0 x 10-2
4.0 x 10-8
- 17. Multiple Choice
The amount of space occupied by a substance is its
mass.
volume.
length.
weight.
- 18. Multiple Choice
Significant figures are important because they indicate
the accuracy of the conversion factor.
the number of digits on a calculator.
the precision of a measurement.
the number of measurements.
- 19. Multiple Choice
The measurement of the gravitational pull on an object is its
size.
weight.
length.
mass.
- 20. Multiple Choice
The number of significant figures in the measurement of 45.030 mm is
three.
five.
four.
six.
- 21. Multiple Choice
A researcher needed three samples of sodium chloride solution, each with a volume of 0.03510 mL. The total volume needed should be reported as
0.0105 mL.
0.10 mL.
0.1053 mL.
0.105 mL.
- 22. Multiple Choice
Which of the following is the largest unit?
decimeter
kilometer
millimeter
micrometer
- 23. Multiple Choice
How many centimeters are there in
57.0 in.?
22.4 cm
140 cm
22 cm
145 cm
- 24. Multiple Choice
Which of the following examples illustrates a number that is correctly rounded to three significant figures?
109,526 grams to 109 500 grams
0.03954 grams to 0.040 grams
4.05438 grams to 4.054 grams
20.0332 grams to 20.0 grams
- 25. Multiple Choice
Which of the following numbers contains the designated CORRECT number of significant figures?
156 000
3 significant figures
0.00302
2 significant figures
1.04
2 significant figures
0.04300
5 significant figures
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