Answers to Measurements and Calculations Test Review
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Answers to Measurements and Calculations Test Review 1. 12.9nm 2. a. 9SF b. 4SF c. 7SF d. 7SF 3. a. 93g b. 500g/mL c. 3.1g/cm3 4. a. 50g b. 0.726g/cm3 c. 319K d. 160oz/gal 5. a. 77,000m/day b. 560 hutz c. 4900mg d. 2.139X10-9mil (Jane ran the greater distance) e. 1in = 16.39cm3, 0.03531 ft3 f. (a) 1300min f. (b) 0.056mil/hr g. 14,300cm
Page 59 in textbook Section Review problems: 1. quantitative is numerical and qualitative is non-numerical 2. A testable statement that serves as a the basis for predication and further experiments. 7. a. 103 b. 10-2 c. 106 d. 10-6 e. 10-3 8. a. meters b. mm or cm c. km d. micrometers 9. a. kilograms b. grams c. grams
17. %error = accepted value – experimental value X 100 accepted value 19. between 4.4 and 4.8g 20. It would introduce error in the measurement and any subsequent calculations. 35. 1.53% 36. 18.83% 53. 1.34X108 atoms (find the atomic radius on page 730 but don’t forget to multiply by 2 to find the diameter)
Answers to Measurements and Calculations Test Review 5. 12.9nm 6. a. 9SF b. 4SF c. 7SF d. 7SF 7. a. 93g b. 500g/mL c. 3.1g/cm3 8. a. 50g b. 0.726g/cm3 c. 319K d. 160oz/gal 5. a. 77,000m/day b. 560 hutz c. 4900mg d. 2.139X10-9mil (Jane ran the greater distance) e. 1in = 16.39cm3, 0.03531 ft3 f. (a) 1300min f. (b) 0.056mil/hr g. 14,300cm
Page 59 in textbook Section Review problems: 3. quantitative is numerical and qualitative is non-numerical 4. A testable statement that serves as a the basis for predication and further experiments. 7. a. 103 b. 10-2 c. 106 d. 10-6 e. 10-3 8. a. meters b. mm or cm c. km d. micrometers 9. a. kilograms b. grams c. grams
18. %error = accepted value – experimental value X 100 accepted value 21. between 4.4 and 4.8g 22. It would introduce error in the measurement and any subsequent calculations. 37. 1.53% 38. 18.83% 53. 1.34X108 atoms (find the atomic radius on page 730 but don’t forget to multiply by 2 to find the diameter)