Name ______________________
Section _____
Chem 140 Worksheet 2 Metric System and Dimensional Analysis 24 points
Show your work. Circle your answer. Unless your answer is clearly indicated you will receive no credit.
Use the attached tables for your conversions. If you use any other tables your answers may be incorrect
and it is possible that you will receive no credit. Always use the correct number of significant figures, and
be sure to write units with your answers.
1. 685 nm to cm
2. How many µL are in 1.25 L?
3. How many g are in 125,000 kg?
4. How many ng are in 1.33 x 10 – 7 g?
5. Convert 525 km to mm?
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6. 7.2 quarts to liters
7. 1.64 feet to meters
8. 760 millimeters to inches
9. 21 oz can of peaches into kg.
10. A VW bus’s gas tank holds 15.9 gal. Convert this volume to liters.
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11. An auto engine has a displacement of 1.6 liters. What is it in cubic centimeters (cm3)?
12. Mount Fuji is 12,365 feet high. How high is it in km?
13. A block has dimensions of 6.0 inches x 3.26 cm x 1.5 feet. What is its volume in L?
14. Many mechanical pencils use 0.4 millimeter lead. What is the diameter in feet?
15. The apparent speed limit on Highway U.S. 101 is 85 miles/hr. Convert to km/min.
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16. The speed of light is 3.00 x 108 m/sec. How far does light travel per year in miles?
17. Determine the density (in g/mL) of a substance that has a mass of 0.125 kg that occupies a volume of
0.0255 L.
18. Nitrogen gas has a density of 1.25 g/L. What is the mass of 10.0 L of nitrogen gas?
19. Nitrogen gas has a density of 1.25 g/L. What is the mass of 25.0 mL of nitrogen gas?
20. Copper has a density of 8.96 g/cm3. If a penny weighs 3.05 g, what is its volume in liters?
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21. A blood test shows a concentration of an antibiotic in blood of 25.0 µg/100 mL of blood. How many
grams of antibiotic are present in 1.50 L of this patients blood.
22. 7.25 °F to °C
23. 38.6 °C to °F
24. 88.6 °F to K
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