Test Bank For Introductory Chemistry A Foundation 7th Edition by Steven S. Zumdahl

Chapter 01 - Chemistry: An Introduction 1. Define the following terms: a. science b. chemistry ANS: a. Science - a framework for gaining and organizing knowledge. It is a procedure for processing and understanding certain information. b. Chemistry - the science that deals with the matter of the universe and the changes it can undergo. PTS: 1 DIF: easy MSC: general chemistry 2. Define the following terms: a. scientific method b. natural law c. hypothesis d. theory TOP: general concepts | definition of chemistry ANS: a. Scientific method - the process or steps of scientific inquiry. b. Natural law - a statement describing observed behavior. c. Hypothesis - a possible explanation for an observation. d. Theory - a set of testsed hypotheses that gives an explanation for some behavior or observation (also called a model). PTS: 1 DIF: easy TOP: general concepts | scientific method KEY: hypothesis | theory MSC: general chemistry 3. Which of the following is not a step in the scientific method? a. Make an observation. b. Formulate a hypothesis. c. Perform an experiment. d. Change results to agree with your hypothesis. e. Develop a theory (or model). ANS: D PTS: 1 DIF: easy TOP: general concepts | scientific method MSC: general chemistry 4. A __________ is a summary of observed behavior, and a __________ is an explanation of behavior. a. law, measurement b. theory, scientific method c. theory, law d. law, theory e. hypothesis, theory ANS: D PTS: 1 TOP: general concepts | scientific method DIF: easy KEY: theory | law MSC: general chemistry Chapter 02 - Measurements and Calculations 1. Express 1840000 in scientific notation. a. 5.41  10–8 b. 1.84  10–6 c. 1.84  106 d. 184  106 e. 184  104 ANS: C TOP: general concepts | measurement KEY: MSC: general chemistry Express in scientific notation. a. 3107 b. 3.0523  107 c. 305  107 d. 30523  103 e. 305230  107 ANS: B TOP: general concepts | measurement KEY: MSC: general chemistry Write 8,394 in standard scientific notation. a. 8394 b. 8.394  10–3 c. 839.4  101 d. 8.394  1000 e. 8.394  103 ANS: E TOP: general concepts | measurement MSC: general chemistry 2. 3. 4. The number 0. expressed in exponential notation is a. 3.009  10–5 b. 3.0  10–5 c. 3.009  105 5. The number 0.002 expressed in exponential notation is a. 2103 b. 2104 c. 210–3 d. 210–4 e. none of these d. 3.009  10–4 e. 3.009 ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | scientific notation PTS: 1 DIF: easy significant figures | scientific notation PTS: 1 DIF: easy significant figures | scientific notation PTS: 1 DIF: easy KEY: significant figures | scientific notation PTS: 1 6. ANS: C PTS: 1 DIF: easy TOP: general concepts | measurement KEY: significant figures | scientific notation MSC: general chemistry The number 0.00215 expressed in exponential notation is a. 2.15  103 b. 2.15  10–2 c. 215  103 7. The number 0.005837 expressed in scientific notation is a. 5.84  103 b. 5.837  103 c. 5.84  10–3 8. The number 600,000 expressed in scientific notation is a. 6.0  105 b. 6.0  10–5 c. 60104 9. Express the number 178481 in scientific notation. a. 1.78481  10–5 b. 1.78481  105 c. 1.78  105 10. Express the number 0.00395 in scientific notation. a. 3.95  10–3 b. 3.95  103 c. 0.395  10–3 d. 2.15  102 e. 2.15  10–3 ANS: E TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | scientific notation d. 5.837  10–3 e. 5837  10–6 ANS: D TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | scientific notation d. 600  103 e. 6105 ANS: E TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | scientific notation d. 178.481  103 e. 1.8  10–5 ANS: B TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | scientific notation PTS: 1 PTS: 1 PTS: 1 PTS: 1 11. d. 395  10–5 e. none of these ANS: A PTS:1 TOP: general concepts | measurement MSC: general chemistry 1.8 kilograms contain this many grams. a. b. c. d. e. ANS: A PTS:1 TOP: general concepts | measurement MSC: general chemistry How many milliliters are in 0.070 L? a. 0.70 mL b. 7.0 mL c. d. e. DIF: easy KEY: significant figures | scientific notation 12. DIF: easy KEY: factor label method | conversion factor mL mL mL 13. The measurement 5.2103 g also could be written as a. 5.2 g b. 5.2 mg c. 5.2 pg ANS: D PTS:1 TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | conversion factor 14. d. 5.2 kg e. 5.2 dg ANS: D PTS:1 TOP: general concepts | measurement MSC: general chemistry How many millimeters are in DIF: easy KEY: factor label method | conversion factor centimeters? DIF: easy KEY: factor label method | conversion factor a. b. c. d. 8.63 mm e. mm mm mm mm ANS: C PTS:1 TOP: general concepts | measurement MSC: general chemistry 15. Convert: 6.0 mm = _____________ km. 16. a. b. c. d. e. km km km km km ANS: A TOP: general concepts | measurement KEY: MSC: general chemistry Convert: 38.6 L = _____________ mL. easy factor label method | conversion factor PTS: 1 DIF: a. b. c. d. e. 3.86 mL ANS: B TOP: general MSC: general Convert: a. mL mL mL mL PTS: 1 DIF: concepts | measurement KEY: chemistry easy factor label method | conversion factor 17. g = ____________ kg. b. c. d. e. kg kg 0.0344 kg kg kg PTS: 1 concepts | measurement 18. chemistry Convert: 65.1 cm = ____________ m. ANS: C TOP: general MSC: general DIF: easy KEY: factor label method | conversion factor 19. 9.4 milliseconds is equal to how many seconds? a. b. m m c. 0.0651 m d. 0.651 m e. 6.51 m ANS: D TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | conversion factor PTS: 1 a. s 20. The fundamental unit of length in the metric system is the a. kilometer b. meter c. centimeter 21. b. c. d. e. 0.94 s s s s ANS: C TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | conversion factor d. gram e. milliliter ANS: B TOP: general concepts | measurement MSC: general chemistry The number of milligrams in 6.6 kg is DIF: easy KEY: si unit | base unit PTS: 1 PTS: 1 22. The SI prefix that corresponds to a factor of 10–2 is a. centi b. deci c. kilo 23. Which metric prefix is used to designate 1/10? a. d b. c c. m a. b. c. d. e. mg mg mg mg mg ANS: B TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | conversion factor d. milli e. none of these ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: si unit | prefixes d. M e. k ANS: A PTS: 1 DIF: easy PTS: 1 PTS: 1 24. 27. Convert: 904.4 mm = ______________ m. 28. The number of cubic centimeters (cm3) in 43.0 mL is a. 0.0430 cm3 b. 4.30 cm3 c. 43.0 cm3 d. none of these TOP: general concepts | measurement KEY: MSC: general chemistry The number of milliliters in 0.0483 liter is c. 4.83 mL d. 483 mL e. si unit | prefixes a. mL b. 48.3 mL 25. 26. Which of the following is an SI unit for expressing the mass of a block of Au? a. m b. g c. L mL ANS: B TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | conversion factor d. pound ANS: B PTS: 1 TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: si unit | base unit PTS: 1 A cubic centimeter (cm3) is equivalent to what other metric volume unit? a. milliliter b. liter c. deciliter d. centimeter e. millimeter ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: si unit | volume a. b. m m PTS: 1 c. 9.044 m d. 90.44 m e. 0.9044 m ANS: E TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | conversion factor PTS: 1 ANS: C PTS: 1 DIF: easy TOP: general concepts | measurement KEY: factor label method | conversion factor MSC: general chemistry 29. Using the rules of significant figures, calculate the following: 70 + 4.461 a. 70 b. 75 c. 74.46 d. 74.461 e. 74 ANS: A 70 PTS: 1 KEY: significant figures | rounding TOP: general concepts | measurement MSC: general chemistry a. 25.675 b. 25 c. 20 d. 25.68 e. 26 ANS: D TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | rounding DIF: easy 30. Using the rules of significant figures, calculate the following: 13.4561 - 3.48 a. 9.98 b. 10 c. 9.9761 d. 9.976 e. 9 ANS: A 9.98 PTS: 1 KEY: significant figures | rounding TOP: general concepts | measurement MSC: general chemistry DIF: easy 31. Using the rules of significant figures, calculate the following: 12.67 + 13.005 = PTS: 1 32. Using zero as your reference point, how much liquid has left the buret? Use the correct number of significant figures. 33. You take 20.0 mL of water from a graduated cylinder and add it to the beaker of water below. What is the new volume of water in the beaker? a. 20 mL b. 22 mL c. 22.0 mL d. 38 mL e. 38.0 mL ANS: C TOP: general concepts | measurement MSC: general chemistry DIF: moderate KEY: significant figures | rounding PTS: 1 34. How many significant figures are in the number 1.89  103? a. 1 b. 2 c. 3 a. 40 mL b. 40. mL c. 35 mL d. 35.0 mL e. 25.0 mL ANS: C TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | rounding d. 4 e. 5 ANS: C PTS: 1 DIF: easy PTS: 1 35. TOP: general concepts | measurement KEY: significant figures | scientific notation MSC: general chemistry The number 3.00183 rounded to four significant figures is a. 3.002 b. 3.001 c. 3.000 36. How many significant figures are in the number 60.02  105? a. 2 b. 3 c. 4 37. The number 14.809 rounded to three significant figures is a. 15.0 b. 14.9 c. 14.81 38. 39. Round 0.0004583 to three significant figures, and express it in scientific notation. ANS: 4.58  10–4 PTS: 1 DIF: easy TOP: general concepts | measurement KEY: significant figures | scientific notation MSC: general chemistry d. 3.183 e. none of these ANS: A 3.002 PTS: 1 KEY: significant figures | rounding TOP: general concepts | measurement MSC: general chemistry d. 5 e. none of these ANS: C TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | scientific notation d. 14.809 e. 14.8 ANS: E TOP: general concepts | measurement MSC: general chemistry Round 23,456 to four significant figures. ANS: 23,460 PTS: 1 DIF: easy KEY: significant figures | rounding DIF: easy KEY: significant figures | rounding TOP: general concepts | measurement MSC: general chemistry DIF: easy PTS: 1 PTS: 1 40. How many significant figures are in the number 34.00500? a. 3 b. 4 c. 5 41. How many significant figures are in the number 1000.0? a. 1 b. 2 c. 3 42. How many significant figures are in the measurement 12.3004 g? a. 6 b. 5 c. 4 43. How many significant figures are in the number 1.20  103? a. 1 b. 2 c. 3 44. In the sum of 54.34 + 45.66, the number of significant figures is a. 2 b. 3 c. 4 d. 6 e. 7 ANS: E TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures d. 4 e. 5 ANS: E TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures d. 3 e. 2 ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures d. 4 e. 5 ANS: C TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | scientific notation d. 5 e. 6 ANS: D PTS: 1 DIF: easy PTS: 1 PTS: 1 PTS: 1 PTS: 1 45. TOP: general concepts | measurement KEY: significant figures | rounding MSC: general chemistry How many significant figures are in the number 3.400? a. 1 b. 2 c. 3 46. The number 243.306 rounded off to five significant figures is a. 243.31 b. 243.36 c. 243.30 47. A student finds that the weight of an empty beaker is 14.049 g. She places a solid in the beaker to give a combined mass of 14.142 g. To how many significant figures is the mass of the solid known? 48. What is the result of the following multiplication expressed in scientific notation to the correct number of significant figures? (5.46 x 103)(8.0 x 10-3) 49. How many significant figures are in the number 19.8030? d. 4 e. 5 ANS: D TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures d. 243.00 e. none of these ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | rounding a. 2 b. 3 c. 1 d. 5 e. 4 ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: moderate KEY: significant figures | rounding a. b. c. d. e. 4.4101 4.37101 4.3101 4101 4.368 10 1 ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: moderate KEY: significant figures | scientific notation PTS: 1 PTS: 1 PTS: 1 PTS: 1 50. How many significant figures are there in the result of the following calculation? 51. The result of the following calculation has how many significant figures? (0.4333 J/g °C) (33.12°C – 31.12°C)(412.1 g) a. 1 b. 2 c. 3 52. How many significant figures are in the number 4.00700  1013? a. 2 b. 4 c. 5 53. How many significant figures are in the number 0.02020  1015? a. 3 b. 4 c. 5 a. 6 b. 5 c. 4 d. 3 e. 2 ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures (4.321/2.8)  (6.9234  105) a. 1 b. 2 c. 3 d. 4 e. 5 ANS: B TOP: general concepts | measurement MSC: general chemistry DIF: moderate KEY: significant figures | rounding d. 4 e. 5 ANS: C TOP: general concepts | measurement MSC: general chemistry DIF: moderate KEY: significant figures | rounding d. 6 e. none of these ANS: D TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | scientific notation d. 6 e. 19 ANS: B PTS: 1 DIF: easy PTS: 1 PTS: 1 PTS: 1 PTS: 1 54. TOP: general concepts | measurement KEY: significant figures | scientific notation MSC: general chemistry How many significant figures are in the measurement 0.2010 g? a. 1 b. 2 c. 3 55. The product of 0.1400  6.02  1023 will have how many significant figures? a. 2 b. 3 c. 23 56. How many significant figures should there be in the answer when you divide 4.1 by 7.464? a. 7 b. 4 c. 3 57. How many significant figures are in the number 0.00204? a. 3 b. 5 c. 2 58. How many significant figures are in the number 123.00015? a. 5 b. 6 c. 7 d. 8 d. 4 e. 5 ANS: D TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures d. 1023 e. 7 ANS: B TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | rounding d. 2 e. 1 ANS: D TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | rounding d. 6 e. 4 ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures PTS: 1 PTS: 1 PTS: 1 PTS: 1 59. e. 9 ANS: D PTS: 1 DIF: easy TOP: general concepts | measurement KEY: significant figures MSC: general chemistry How many significant figures are in the number 0.0040090? a. 8 b. 7 c. 6 60. How many significant figures are in the number 10.050? a. 1 b. 2 c. 3 61. Write the number 345.626 in scientific notation. a. 345.626 b. 3.45626  10–2 c. 34.5626  102 62. Write the number 0.0005020 in scientific notation. a. 5.020  104 b. 0.5020  10–3 c. 5.020  10–4 63. d. 5 e. 4 ANS: D TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures d. 4 e. 5 ANS: E TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures d. 0.345626  103 e. 3.45626  102 ANS: E TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: significant figures | scientific notation d. 50.20  10–5 e. none of these ANS: C TOP: general concepts | measurement MSC: general chemistry Convert 943.4 m to decimeters. DIF: easy KEY: significant figures | scientific notation PTS: 1 PTS: 1 PTS: 1 PTS: 1 a. dm 64. 65. Convert 777.5 qt to milliliters (1 L = 1.060 qt). b. 94.34 dm c. 9.434 dm d. dm e. none of these ANS: D TOP: general concepts | measurement MSC: general chemistry Convert 949.0 L to milliliters. a. 0.9490 mL b. 9.490 mL c. 949.0 mL DIF: easy KEY: factor label method | conversion factor d. e. mL mL PTS: 1 ANS: E TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | conversion factor PTS: 1 a. b. c. mL mL mL 66. Convert 9.75 kg to pounds (1 lb = 453.6 g). a. 21.5 lb DIF: easy KEY: factor label method | conversion factor 67. d. 733.5 mL e. none of these ANS: B TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | conversion factor lb d. 4.42 lb e. PTS: 1 b. c. lb d. 3167.180 km e. ANS: B km PTS: 1 DIF: easy lb ANS: A TOP: general concepts | measurement MSC: general chemistry Convert 316718.0 mm to kilometers. a. 3.167180 km b. 0.3167180 km c. 316.7180 km PTS: 1 68. 69. Convert 643.5 mi to kilometers (1 m = 1.094 yd; 1 mi = 1760. yd). a. 4.000  10–4 km b. 1.035  106 km c. 704.0 km 70. 71. TOP: general concepts | measurement MSC: general chemistry Convert 0.9309 L to centiliters. a. 0.009309 cL b. 930.9 cL c. 93.09 cL d. 0.09309 cL e. 9.309 cL ANS: C PTS:1 TOP: general concepts | measurement MSC: general chemistry KEY: factor label method | conversion factor d. 3.656  10–1 km e. 1.035  103 km ANS: E TOP: general concepts | measurement KEY: MSC: general chemistry Convert 17.2 cm to inches (2.54 cm = 1 in). a. 43.7 in b. 4.37 in c. 6.77 in d. 67.7 in e. 0.677 in ANS: C TOP: general concepts | measurement KEY: MSC: general chemistry Convert 0.054 ft3 to liters (28.32 L = 1 ft3). moderate factor label method | conversion factor PTS: 1 DIF: PTS: 1 DIF: easy factor label method | conversion factor DIF: easy KEY: factor label method | conversion factor a. L b. 0.15 L c. 15 L d. 72. Convert 9.60 kg to pounds (1 kg = 2.205 lb). a. 21.2 lb b. 4.35 lb c. 2.12 lb d. 43.5 lb L e. 1.5 L ANS: E TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | conversion factor PTS: 1 73. e. 0.435 lb ANS: A PTS: 1 DIF: TOP: general concepts | measurement KEY: MSC: general chemistry Convert: 0.326 mm = ____________ m. easy factor label method | conversion factor a. b. c. d. 32.6 m e. m m m m 74. 75. ANS: A TOP: general concepts | measurement KEY: MSC: general chemistry Convert: 0.00668 cm = ____________ mm. a. 6.68 mm b. 6.68  10–2 mm c. 0.668 mm d. 6.68  10–4 mm e. 6.68 10–5 mm ANS: B TOP: general concepts | measurement MSC: general chemistry Convert: 6.76 qt = ___________ mL. a. 7.17 mL e. easy factor label method | conversion factor PTS: 1 DIF: PTS: 1 DIF: easy KEY: factor label method | conversion factor 76. Convert: 24.0 cc = ______________ mL. a. 240 mL DIF: easy KEY: factor label method | conversion factor 77. b. c. mL mL d. 6.38 mL b. mL ANS: C TOP: general concepts | measurement MSC: general chemistry DIF: moderate KEY: factor label method | conversion factor mL c. 2.40 mL d. 24.0 mL e. 0.240 mL ANS: D TOP: general concepts | measurement MSC: general chemistry Convert: 6.28 mL = _____________ qt. PTS: 1 PTS: 1 78. a. 6.66 mL b. 5.92 mL c. mL d. 1.11  104 mL e. mL ANS: E TOP: general concepts | measurement KEY: MSC: general chemistry Convert: 828.6 qt = ____________ mL. c. d. e. moderate factor label method | conversion factor PTS: 1 DIF: a. mL b. 878.3 mL 79. 80. 81. d. –245.8 K e. 476.4 K ANS: A PTS: 1 DIF: moderate mL mL mL ANS: E TOP: general concepts | measurement KEY: MSC: general chemistry Convert: 2.80 in = _____________ mm. a. 71.1 mm b. 7.11 mm c. 1.102 mm d. 0.71 mm e. 711 mm ANS: A TOP: general concepts | measurement KEY: MSC: general chemistry Convert: 88.0 mg = _______________ lb. a. 1.94  102 lb b. 8.80  10–5 lb c. 3.99  107 lb d. 3.88  10–4 lb e. 1.94  10–4 lb ANS: E TOP: general concepts | measurement MSC: general chemistry Convert 81.0°F to kelvins. a. 300.2 K b. 354.0 K c. –192.0 K moderate factor label method | conversion factor PTS: 1 DIF: PTS: 1 DIF: easy factor label method | conversion factor PTS: 1 DIF: moderate KEY: factor label method | conversion factor 82. TOP: general concepts | measurement KEY: Fahrenheit scale | Kelvin MSC: general chemistry Convert: 29.3°C = _______________ °F. a. 84.7°F b. 52.7°F c. 20.7°F 83. Convert: 366.2 K = ________________ °C. a. 639.2°C b. 93.2°C c. 691.2°C 84. Convert: 15.3°F = _______________ °C. a. 26.28°C b. –30.06°C c. –9.28°C 85. d. 85.14°C e. 288.3°C ANS: C PTS:1 TOP: general concepts | measurement MSC: general chemistry 485.5 K equals a. 212.5°F b. 873.9°C c. 758.5°F d. 212.5°C e. 758.5°C ANS: D PTS:1 TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: Celsius scale | Fahrenheit scale DIF: easy KEY: Celsius scale | Kelvin 86. What Kelvin temperature reading equals 61.2°F? a. –256.8 K b. 325.6 K c. –220.4 K d. 324.8 K d. 48.3°F e. –15.7°F ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: Celsius scale | Fahrenheit scale d. 235.4°C e. 203.4°C ANS: B TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: Celsius scale | Kelvin PTS: 1 PTS: 1 87. e. 289.2 K ANS: E PTS: 1 DIF: moderate TOP: general concepts | measurement KEY: Fahrenheit scale | Kelvin MSC: general chemistry Convert: –10.5°F = _______________ °C. a. –23.6°C b. 11.9°C c. –76.5°C 88. d. 38.7°C e. 262.5°C ANS: A PTS:1 TOP: general concepts | measurement MSC: general chemistry Convert: –12.2°C = _____________ °F. a. –54.0°F b. 10.0°F c. 25.2°F d. –38.8°F e. –22.0°F ANS: B PTS:1 TOP: general concepts | measurement MSC: general chemistry 232.0°F is equivalent to a. 146.7°C b. 111.1°C c. 360.0°C d. 475.2°C e. 128.9°C ANS: B PTS:1 TOP: general concepts | measurement MSC: general chemistry Convert: 18.6°F = _____________ °C. a. 28.11°C b. –24.12°C c. 91.08°C d. –7.44°C e. 10.33°C ANS: D PTS:1 TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: Celsius scale | Fahrenheit scale DIF: easy KEY: Celsius scale | Fahrenheit scale DIF: easy KEY: Celsius scale | Fahrenheit scale DIF: easy KEY: Celsius scale | Fahrenheit scale 89. 90. 91. What is the Celsius equivalent of 436.5 K? a. 709.5°C b. 817.7°C 92. Convert: –47.9°C = ______________ °F. a. –118.2°F b. 5.4°F c. –54.2°F 93. 94. 95. Cesium melts at 302 K and boils at 944 K. What would be the physical state of cesium at 25°C? 96. c. 224.7°C d. 785.7°C e. 163.5°C ANS: E PTS: 1 TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: Celsius scale | Kelvin d. –58.6°F e. –86.2°F ANS: C TOP: general concepts | measurement MSC: general chemistry Convert: 91.2°C = ______________ K. a. –181.8 K b. 181.8 K c. 164.2 K d. 364.2 K e. 32.9 K ANS: D TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: Celsius scale | Fahrenheit scale ANS: solid PTS: 1 DIF: easy KEY: temperature | Kelvin TOP: general concepts | measurement MSC: general chemistry PTS: 1 PTS: 1 DIF: easy KEY: Celsius scale | Kelvin If 1.000 kg equals 2.205 lb, what is the mass in pounds of a human who weighs 51.35 kg? a. 113.2 lb b. 23.29 lb c. 93.2 lb d. 53.56 lb e. none of these ANS: A TOP: general concepts | measurement MSC: general chemistry The Celsius equivalent of 62.2 K is a. 335.2°C b. 62.2°C DIF: easy KEY: factor label method | conversion factor PTS: 1 97. 98. 99. 100. 101. c. 162.2°C d. –210.8°C e. 144.0°C ANS: D PTS: 1 TOP: general concepts | measurement MSC: general chemistry 18.4°C is equal to a. 65.1°F b. 1.1°F c. –254.6 K d. –7.6°F e. none of these ANS: A TOP: general concepts | measurement MSC: general chemistry Convert: 21.9°C = ____________ °F. a. 7.4°F b. 44.2°F c. –19.8°F d. 39.4°F e. 71.4°F ANS: E TOP: general concepts | measurement MSC: general chemistry Convert: –97.7°C = ____________ K. a. –370.7 K b. 370.7 K c. 175.3 K d. 175.9 K e. 54.3 K ANS: C TOP: general concepts | measurement MSC: general chemistry Density is an example of a a. chemical property b. physical property c. qualitative property d. chemical change e. physical change ANS: B PTS: 1 KEY: physical property Water has a density of 1.0 g/mL. Which of these objects will float in water? Object I: mass = 50.0 g; volume = 69.4 mL PTS: 1 DIF: easy KEY: Celsius scale | Fahrenheit scale PTS: 1 DIF: easy KEY: Celsius scale | Fahrenheit scale PTS: 1 DIF: easy KEY: Celsius scale | Kelvin DIF: easy KEY: Celsius scale | Kelvin DIF: easy MSC: general chemistry TOP: general concepts | matter 102. 103. Find the volume of an object that has a density of 3.14 g/mL and a mass of 94.7 g. a. 30.2 mL DIF: moderate KEY: factor label method | dimensional analysis Object II: Object III: a. I only b. I, III c. II only d. II, III e. III only ANS: A KEY: physical property Calculate the mass of a rectangular solid that has a density of 3.96 g/cm3 and measures mass = 60.9 g; volume = 54.7 mL mass = 100.0 g; volume = 40.0 mL 2.50 cm by 1.80 cm by 3.00 cm. a. 3.41 g b. 53.5 g c. 9.90 g d. 28.9 g e. 56.5 g ANS: B TOP: general concepts | measurement MSC: general chemistry DIF: moderate KEY: factor label method | dimensional analysis PTS: 1 TOP: general concepts | matter PTS: 1 DIF: easy MSC: general chemistry b. mL c. 297 mL d. e. mL mL 104. An experiment requires 66.6 g of ethyl alcohol (density = 0.790 g/mL). What volume, in liters, will be required? DIF: moderate KEY: factor label method | dimensional analysis ANS: A TOP: general concepts | measurement MSC: general chemistry PTS: 1 a. b. L L c. 8.43e4 L d. e. 52.6 L 105. 3 At 20°C the density of mercury is 13.6 g/cm . What is the mass of 97.8 mL of mercury at 20°C? a. L ANS: D TOP: general concepts | measurement MSC: general chemistry PTS: 1 g b. 7.19 g 106. If a 100.-g sample of platinum metal has a volume of 4.671 mL, what is the density of 107. An experiment requires 74.2 mL of ethyl alcohol. If the density of ethyl alcohol is 3 0.790 g/cm , what is the mass of 74.2 mL of ethyl alcohol? DIF: easy KEY: factor label method | dimensional analysis 108. If a 100.-g sample of a metal has a volume of 8.65 mL, what is the density of the metal? a. 11.6 g/mL b. 1.16 g/mL c. 0.0865 g/mL 109. The volume (in milliliters) occupied by 41.9 g of mercury (density = 13.6 g/mL) is a. 570 mL b. 3.08 mL c. 0.325 mL c. 1.00 g/mL d. 0.139 g e. none of these ANS: A PTS: 1 TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | dimensional analysis platinum in g/cm3? a. 21.4 g/cm3 b. 2.14 g/cm3 c. 0.0467 g/cm3 d. 467 g/cm3 e. none of these ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | dimensional analysis a. 93.9 g b. 10.6 g c. 58.6 g d. ANS: C TOP: general concepts | measurement MSC: general chemistry d. 9 g/mL e. none of these ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | dimensional analysis d. 28.3 mL e. none of these ANS: B TOP: general concepts | measurement DIF: easy KEY: factor label method | dimensional analysis PTS: 1 g e. none of these PTS: 1 PTS: 1 PTS: 1 110. The density of copper is 8.92 g/mL. The mass of a piece of copper that has a volume of DIF: easy KEY: factor label method | dipole-dipole forces 111. The density of gold is 19.3 g/mL. What is the volume of a gold nugget that weighs 68.7 g? DIF: easy KEY: factor label method | dimensional analysis 112. 3 Aluminum has a density of 2.70 g/cm . What is the mass of a rectangular block of aluminum measuring 11.1 cm by 22.2 cm by 34.5 cm? a. 183 kg DIF: moderate KEY: factor label method | dimensional analysis 113. An object has a mass of 40.1 g and occupies a volume of 7.67 mL. The density of this object 114. What volume would be occupied by a piece of aluminum (density = 2.70 g/mL) weighing 98.0 g? MSC: general chemistry 10.4 mL is a. 0.928 g b. 928 g c. 92.8 g d. g e. none of these ANS: C TOP: general concepts | measurement MSC: general chemistry mL b. 3.56 mL c. 0.281 mL d. 49.4 mL e. none of these ANS: B TOP: general concepts | measurement MSC: general chemistry kg c. 0.318 kg d. 23.0 kg e. none of these ANS: D TOP: general concepts | measurement MSC: general chemistry is a. 308 g/mL b. 0.191 g/mL c. 5.23 g/mL d. too low to measure e. 40.1 g/mL ANS: C PTS: 1 TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: si unit | density PTS: 1 a. PTS: 1 b. PTS: 1 a. 265 mL b. mL c. 36.3 mL d. 3.63 mL e. none of these ANS: C TOP: general concepts | measurement MSC: general chemistry DIF: easy KEY: factor label method | dimensional analysis PTS: 1 115. A graduated cylinder contains 20.0 mL of water. An irregularly shaped object is placed in the cylinder, and the water level rises to the 31.2-mL mark. If the object has a mass of 80.4 g, what is its density? a. 7.18 g/mL b. 0.139 g/mL c. 2.58 g/mL d. 4.02 g/mL e. none of these ANS: A TOP: general concepts | measurement MSC: general chemistry DIF: moderate KEY: si unit | density PTS: 1 116. A piece of an unknown metal weighs 400.1 g and occupies a volume of 72.2 mL. What is the density of this metal? DIF: easy KEY: si unit | density a. g/mL b. 5.54 g/mL c. 0.180 g/mL d. 55.4 g/mL e. none of these ANS: B TOP: general concepts | measurement MSC: general chemistry PTS: 1 117. A sample of an unknown metal (density = 4.920 g/mL) weighs 891.8 g. What is the volume of this piece of metal? a. b. mL mL c. 181.3 mL d. e. none of these ANS: C TOP: general concepts | measurement MSC: general chemistry mL PTS: 1 DIF: easy KEY: factor label method | dimensional analysis 118. The density of an object that has a mass of 8.07 g and occupies a volume of 1.20 mL equals a. 8.07 g/mL b. 1.20 g/mL c. 6.73 g/mL