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# Set#1.doc

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School
Wilfrid Laurier University
Department
Chemistry
Course
CH110
Professor
Quinn Major
Semester
Fall

Description
PROBLEM SET #1 1. Express 30501000 in scientific notation. 7 a. 3 × 10 b. 3.0501 × 107 7 c. 351 × 10 d. 30501 × 10 3 7 e. 305010 × 10 2. Write 8,319 in standard scientific notation. a. 8,319 −3 b. 8.319 × 10 c. 831.9 × 10 1 d. 8.319 × 1000 3 e. 8.319 × 10 3. The number 0.00003007 expressed in exponential notation is a. 3.007 × 10 −5 5 b. 3.7 × 10 5 c. 3.007 × 10 − d. 3.007 × 10 4 e. 3.007 4. The number 0.00231 expressed in exponential notation is 3 a. 2.31 × 10 b. 2.31 × 10 −2 3 c. 231 × 10 d. 2.31 × 10 2 −3 e. 2.31 × 10 5. The number 0.005802 expressed in scientific notation is a. 5.82 × 10 3 3 b. 5.802 × 10 c. 5.82 × 10 3 −3 d. 5.802 × 10 e. 5802 × 10−6 6. The number 200,000 expressed in scientific notation is 5 a. 2.0 × 10 b. 2.0 × 10 −5 c. 20 × 10 4 3 d. 200 × 10 e. 2 × 10 5 7. Express the following in scientific notation. a. 0.00832 b. 178,428 8. How many milliliters are in 0.020 L? a. 0.20 mL b. 2.0 mL c. 5.0 mL d. 20. mL e. 200 mL 3 9. The measurement 4.3 × 10 g also could be written as a. 4.3 g b. 4.3 mg c. 4.3 pg d. 4.3 kg e. 4.3 dg 10. How many millimeters are in 251 centimeters? a. 2.51 × 10 mm 1 b. 2.51 × 10 mm c. 2.51 × 10 mm d. 2.51 mm −2 e. 2.51 × 10 mm 11. Convert: 1 mm = ______________ km. 12. Convert: 12.4 L = ______________ mL. 13. Convert: 314 g = ______________ kg. 14. Convert: 50.0 cm = ______________ m. 15. One millisecond is equal to how many seconds? a. 10 3 s 6 b. 10 s c. 10 −3 s −6 d. 10 s e. 1 s 16. The fundamental unit of length in the metric system is the a. kilometer b. meter c. centimeter d. gram e. milliliter 17. The number of milligrams in 1 kg is 3 a. 10 mg b. 10 6 mg 3 c. 10 mg d. 10 5 mg 6 e. 10 mg −3 18. The SI prefix that corresponds to a factor of 10is a. kilo b. deci c. centi d. milli e. none of these 19. Which metric prefix is used to designate 1000? a. m b. M c. k d. c e. d 20. The number of milliliters in 0.0367 liter is a. 3.67 × 10 −5mL b. 36.7 mL c. 3.67 mL d. 367 mL e. 3,670 mL 21. A cubic centimeter (cm ) is equivalent to what other metric volume unit? a. milliliter b. liter c. deciliter d. centimeter e. millimeter 22. Convert: 287 mm = ______________m. 3 23. The number of cubic centimeters (cm ) in 43.0 mL is a. 0.0430 cm 3 3 b. 4.30 cm c. 43.0 cm 3 d. none of these 24. Using the rules of significant figures, calculate the following: 14.8903 – 2.14 = a. 12.7503 b. 12.75 c. 12.750 d. 12 e. 13 25. Using the rules of significant figures, calculate the f
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