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#3, 6, 9, 11, 14, 17, 20, 21, 24, 25, 28, 31, 34, 39, 42, 47, 50, 53 
Key Terms Anames to Key Termu are nAppendarth Select the key term that corresponde to each of the following definitions. 1. a numerical value and unit that eeprover liength, mass, or volume. (a) centimeter (cm) UPS.1. 2. x comman metric unit of length (b) exponent (PSSE) 3. a conmen metric unit of mass (c) gram (g) (PSS.1) 4. a common metric unit of volume (d) irvarument iPS5.71 5. a deviee for neoviding a measuremetu such as iength, mass, of volume (e) mass (ress.) 6. the degree of ineractress in an instrumental measurcment (f) measuretnent (PSS.1] 7. the quastify of matter in an objoct (ve) milliliter (mL) (FSS.1) 8. the certain digitr in a measurement plus oncestimated dipit (h) nonsegnificant digits 9. the digits in a a aseasurement that excend the certaizhy of the instrument (PPSST) 10. the process of eliminating digits that ave not signiairan (i) power of 10 (pss: in 11. A number writaen as a supencript that indicabes a value is mulifiplied by itsell, for (i) rounding off (PS5.3) cample, 104=10101010, and cm3=cmcmcm (k) scientific notation 12. a.positive of negative exponent of 10 13. a method for expessing numbers by moving the decimal place atter the tint rignif- 0 significant digits cant digit and indicating the fumber of decimal moves by a power of 10 (m) ancertainty ipss.1) Exercises Ahwers to odd eumbered Exereher are in Appendin! Uncertainty in Measurements (Sec. P55.1) 1. What is the approaimate mass of a 5e nicked coin? 2. What is the approwintate diameter of a 5 e nicker coin? 1. What quantity flenght mass, volume, timel is expresed by the tollowing units? (a) centineter (b) gram (d) second (c) milliliter 5. Whidr of the following measurements corresponds to met: 4. What quantity fiength, mass, volume, timef is expressed by tic Raler A shown in Figure F FS 2 ? the following unib? fa) meter (t) kilopram. (c) litwer (d) milliserond 36. Express each of the following ordinary numbers as a prower 46. A 10 -ml.pipet has an uncertainty of 0.01ml. Express the of 10 : (a) 100,000,000,000,000,000 (b) 0.000000000000001 volume of the pipet as an ordinary number. 37. Express each of the following powers of 10 as an ordinary 47. The velocity of light is 186,282,397 miles per second. Round number: (a) 1101 (b) 1101 48. The velocity of light is 297,792,458 meters per second. 38. Express each of the following powers of 10 as an ordinary Round off this value to three significant digits. number (a) 110 (b) 11010 49. Find the length of magnesium ribbon that remains after two 250cm strips are cut from 255cm of the metal nobon. 50. Find the total mass of a 126.457g brass cylinder and a Scientific Notation (Sec, PSS,7) 131mog bronze cylinder. 39. Express the following ordinary numbers in scientific 51. Convert the following exponential numbers to scientafic notation: (a) 80,916,000 (a) 352104 (b) 0,191101 (c) 335,600,000,000,000 (b) 0.000000015 52. Convert the following exponential numbers to scientific 40. Express the following ordinary numbers in scientific (a) 0.170102 (b) 0.00359101 notation: (a) 1,010,000,000,000,000 (b) 0.000000000000456 Challenge Exercises (c) 94,500,000,000,000,000 (d) 0.00000000000000001950 53. The mass of a neutron is 1.67491034g and the mass of a 41. There are 26,900,000,000,000,000,000,000 oxygen molecules proton is 1.67261024g. What is the total mass of a neuin 1 liter of oxygen gas at standard temperature and prestron and a proton? sure. Fixpress this number in scientific notation. 42. There are 26,900,000,000,000,000,000 helium atoms in 54. The mass of a neutron is 167491024g, and the mass of a 1 milliliter of helium gas at standard temperature and proton is 1.67261024g. What is the mass difference of a pressure. Express this number in seientific notation. neutron and a proton? 43. The mats of an oxygen molecule is 0.000000000000000. 55. A metric ton is defened as 1000kg or 2.200103 th. An 0000000532g. Express the mass in scientific notation. English ton is defined as 2000ib, or 2000103lb. What is 44. The mass of a helium atom is 0.000000000000000000000 the total mass of a metric ton and Engish ton expressed in 00664g. Express the mass in scientific notation. 56. A metric ton is defined as 1000kg, or 2200103Ib. An Englieh ton is defined as 2000lb, or 2000103lb. What is General Exercises the muss difference between a metric ton and English ton 45. A10mL pipet has an uncertainty of 0.1mL. Express the expressed in pounds? volume of the pipet as an ordinary number
