5. Ammonia boils at 33.4ºC. What temperature is this in ºF? A) 60.1ºF B) 92.1ºF C) 28.1ºF D) 18.5ºF E) +13.5ºF

Size: px

Start display at page:

Download "5. Ammonia boils at 33.4ºC. What temperature is this in ºF? A) 60.1ºF B) 92.1ºF C) 28.1ºF D) 18.5ºF E) +13.5ºF"

Amos King
6 years ago
Views:

1 Name: Date: 1. The diameter of an atom is approximately cm. What is this diameter when expressed in nanometers? A) nm B) nm C) nm D) nm E) nm 2. How many milliliters is L? A) 0.5 ml B) 5 ml C) 0.50 ml D) ml E) 200 ml 3. The SI prefixes giga and micro represent, respectively: A) 10 9 and B) 10 6 and C) 10 3 and D) 10 9 and E) 10 9 and The SI prefixes kilo and centi represent, respectively: A) 10 3 and B) 10 6 and C) 10 3 and D) 10 6 and E) 10 2 and Ammonia boils at 33.4ºC. What temperature is this in ºF? A) 60.1ºF B) 92.1ºF C) 28.1ºF D) 18.5ºF E) +13.5ºF Page 1

2 6. Which of the following represents the largest mass? A) mg B) kg C) µg D) cg E) 10.0 dg 7. The highest temperature ever recorded in Phoenix, Arizona, was 122ºF. Express this temperature in ºC. A) 50ºC B) 64ºC C) 67ºC D) 162ºC E) 219ºC 8. How many significant figures does the result of the following sum contain? A) 2 B) 3 C) 4 D) 5 E) 6 9. How many significant figures does the difference contain? A) 1 B) 2 C) 3 D) 5 E) How many cubic inches are in 1.00 liter? A) 61.0 in 3 B) 155 in 3 C) 394 in 3 D) in 3 E) none of them Page 2

3 11. How many cubic centimeters are there in exactly one cubic meter? A) cm 3 B) cm 3 C) cm 3 D) cm 3 E) cm If the price of gasoline is $1.14 per U.S. gallon, what is the cost per liter? (1 L = 1.06 qt) A) $ /L B) $4.83 /L C) $0.302 /L D) $0.269 /L E) $1.07 /L 13. Bromine is a red liquid at 25ºC. Its density is 3.12 g/cm 3. What is the volume of 28.1 g of liquid bromine? A) 87.7 cm 3 B) cm 3 C) 9.01 cm 3 D) 28.1 cm 3 E) None of the above. 14. Which of the following speeds is the greatest? A) 40 mi/h B) mm/min C) 40 km/h D) 0.74 km/min E) 400 m/min 15. The diameter of Earth is 12.7 Mm. Express this diameter in centimeters. A) cm B) cm C) cm D) cm E) cm Page 3

4 16. The city of Los Angeles is now approximately 2400 miles south of Alaska. It is moving slowly northward as the San Andreas fault slides along. If Los Angeles is to arrive near Anchorage, Alaska, in 76 million years, at what average rate will it have to move in mm per month? A) mm/mo. B) mm/mo. C) 4.2 mm/mo. D) 9.5 mm/mo. E) 51 mm/mo. 18. Americans combined drive about miles per day and their vehicles get an average of 20.0 miles per gallon of fuel used. For each 1 kg of gasoline that is burned, about 3.0 kg of carbon dioxide are produced. How many kilograms of CO 2 are emitted into the atmosphere each day by cars in the U.S.? One gallon of gas weighs about 3.5 kg. A) kg B) kg C) kg D) 93 kg E) none of these 19. A magnesium ion, Mg 2+, has A) 12 protons and 13 electrons. B) 24 protons and 26 electrons. C) 12 protons and 10 electrons. D) 24 protons and 22 electrons. E) 12 protons and 14 electrons. 20. A sulfide ion, S 2, has: A) 16 protons and 16 electrons B) 32 protons and 16 electrons C) 16 protons and 14 electrons D) 16 protons and 18 electrons E) 32 protons and 18 electrons Page 4

5 21. What is the formula for the ionic compound formed by calcium and selenium? A) CaSe B) Ca 2 Se C) CaSe 2 D) Ca 3 Se E) CaSe Which of the following scientists developed the nuclear model of the atom? A) John Dalton B) Robert Millikan C) J. J. Thomson D) Henry Moseley E) Ernest Rutherford 23. The chemical name for ClO 2 A) hydrochloric acid B) chloroform C) hydrogen dioxychloride D) chlorous acid E) chloric acid is chlorite ion. Therefore, the name of HClO 2 is 24. The formula for sodium sulfide is A) SNa. B) K 2 S. C) NaS 2. D) Na 2 S. E) SeS. 25. The correct name for Ba(OH) 2 is A) barium hydrogen oxide. B) boron hydroxide. C) barium hydrate. D) beryllium hydroxide. E) barium hydroxide. Page 5

6 26. The Stock system name for As 2 S 5 is A) arsenic(v) sulfide. B) diarsenic pentasulfide. C) arsenic(iii) sulfide. D) arsenic(v) sulfate. E) diarsenic sulfate. 27. The Stock system name for CrO 3 is: A) chromium oxide B) chromium(ii) oxide C) chromium(iii) trioxide D) chromium(iii) oxide E) chromium(vi) oxide 28. The mineral manganosite is a compound of manganese-55 and oxygen-16. If 77% of the mass of manganosite is due to manganese, what is the empirical formula of manganosite? A) MnO B) Mn 2 O C) Mn 2 O 2 D) MnO 2 E) none of these 29. The mineral hausmannite is a compound of manganese-55 and oxygen-16. If 72% of the mass of hausmannite is due to manganese, what is the empirical formula of hausmannite? A) MnO B) Mn 3 O C) Mn 3 O 4 D) Mn 4 O 3 E) MnO The chemical formula for iron(ii) nitrate is A) Fe 2 (NO 3 ) 3 B) Ir(NO 2 ) 2 C) Fe 2 N 3 D) Fe(NO 3 ) 2 E) Fe(NO 2 ) 2 Page 6

7 31. What is the formula for the ionic compound formed by magnesium and iodine? A) MgI B) Mg 2 I C) MgI 2 D) MgI 3 E) Mg 3 I 32. What is the formula for the binary compound formed by potassium and nitrogen? A) KN B) K 2 N C) NK 2 D) K 3 N E) NK What is the average mass, in grams, of one atom of iron? A) g B) g C) g D) g E) g 34. The mass of atoms of sulfur is A) g. B) 2.00 mg. C) g. D) 6.44 mg. E) g. 35. What is the mass of carbon atoms? A) g B) g C) g D) g E) g Page 7

8 36. How many moles of NH 3 are there in 77.5 g of NH 3? A) mol B) 4.55 mol C) 14.0 mol D) mol E) None of the above. 37. Calculate the molecular mass of menthol, C 10 H 20 O. A) 156 amu B) 140 amu C) 29 amu D) 146 amu E) 136 amu 38. What is the molar mass of nicotine, C 10 H 14 N 2? A) 134 g/mol B) 148 g/mol C) 158 g/mol D) 210 g/mol E) 162 g/mol 39. The molecular formula of aspirin is C 9 H 8 O 4. How many aspirin molecules are present in one 500-milligram tablet? A) 2.77 molecules B) molecules C) molecules D) molecules E) None of these is correct. 40. How many sodium atoms are there in 6.0 g of Na 3 N? A) atoms B) atoms C) atoms D) atoms E) atoms Page 8

9 41. How many sulfur atoms are present in 25.6 g of Al 2 (S 2 O 3 ) 3? A) B) 6 C) D) E) How many grams of nitrogen are there in 7.5 g of Ca(NO 3 ) 2? A) 0.64 g B) 1.3 g C) 0.15 g D) 1.15 g E) 2.3 g 43. Calculate the mass of 4.50 moles of chlorine gas, Cl 2. A) g B) 4.5 g C) 15.7 g D) 160 g E) 319 g 44. Boron obtained from borax deposits in Death Valley consists of two isotopes. They are boron-10 and boron-11 with atomic masses of amu and amu, respectively. The atomic mass of boron is amu (see periodic table). Which isotope of boron is more abundant, boron-10 or boron-11? A) Cannot be determined from data given B) Neither, their abundances are the same. C) Boron-10 D) Boron The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2% O. The molar mass of this compound is g/mol. What is the molecular formula of the compound? A) C 10 H 6 O B) C 9 H 18 O C) C 16 H 28 O 4 D) C 20 H 12 O 2 E) C 18 H 36 O 2 Page 9

10 46. When balanced with smallest set of whole numbers, the coefficient of O 2 in the following equation is C 2 H 4 + O 2 CO 2 + H 2 O A) 1. B) 2. C) 3. D) 4. E) What is the coefficient of H 2 SO 4 when the following equation is properly balanced with the smallest set of whole numbers? Ca 3 (PO 4 ) 2 + H 2 SO 4 CaSO 4 + H 3 PO 4 A) 3 B) 8 C) 10 D) 11 E) none of these 48. Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor: 4NH 3 + 5O 2 4NO + 6H 2 O When 40.0 g NH 3 and 50.0 g O 2 are allowed to react, which is the limiting reagent? A) NH 3 B) O 2 C) Neither reagent is limiting. 49. Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. Which is the limiting reagent when 28 g of MnO 2 are mixed with 42 g of HCl? MnO 2 (s) + 4HCl(aq) MnCl 2 (aq) + 2H 2 O(l) + Cl 2 (g) A) MnO 2 B) HCl C) MnCl 2 D) Cl 2 E) No reagent is limiting. Page 10

11 50. Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor: 4NH 3 + 5O 2 4NO + 6H 2 O What is the theoretical yield of water, in moles, when 40.0 g NH 3 and 50.0 g O 2 are mixed and allowed to react? A) 1.30 mol B) 1.57 mol C) 1.87 mol D) 3.53 mol E) None of these. 51. A g sample of sorbic acid, a compound first obtained from the berries of a certain ash tree, is burned completely in oxygen to give g of carbon dioxide and g of water. The empirical formula of sorbic acid is A) CH 2 O B) C 3 H 4 O C) CH 4 O 3 D) C 3 H 4 O 2 E) C 2 H 4 O The Hall process for the production of aluminum involves the reaction of aluminum oxide with elemental carbon to give aluminum metal and carbon monoxide. If the yield of this reaction is 75%, what mass of aluminum metal can be produced from the reaction of of aluminum oxide with g of carbon? A) g B) g C) g D) g E) g 53. Which of the following compounds is a strong electrolyte? A) H 2 O B) N 2 C) CH 3 COOH (acetic acid) D) C 2 H 6 O (ethanol) E) KOH Page 11

12 54. Which of the following compounds is a weak electrolyte? A) HCl B) NH 3 C) C 6 H 12 O 6 (glucose) D) N 2 E) KCl 55. Which of the following compounds is a nonelectrolyte? A) NaOH B) HNO 3 C) C 2 H 6 O (ethanol) D) KF E) CH 3 COOH (acetic acid) 56. Based on the solubility rules, which one of the following compounds should be insoluble in water? A) NaCl B) MgBr 2 C) FeCl 2 D) AgBr E) ZnCl Based on the solubility rules, which one of the following compounds should be insoluble in water? A) CaCO 3 B) (NH 4 ) 2 CO 3 C) Na 2 CO 3 D) K 2 CO 3 E) KNO Based on the solubility rules, which one of the following should be soluble in water? A) AgBr B) AgCl C) Ag 2 CO 3 D) AgNO 3 E) Ag 2 S Page 12

13 59. Based on the solubility rules, which one of the following should be soluble in water? A) (NH 4 ) 3 PO 4 B) Ca 3 (PO 4 ) 2 C) AlPO 4 D) Ag 3 PO 4 E) Mg 3 (PO 4 ) Based on the solubility rules, which of the following will occur when a solution containing about 0.1 g of Pb(NO 3 ) 2 (aq) is mixed with a solution containing 0.1 g of KI(aq) /100 ml? A) KNO 3 will precipitate; Pb 2+ and I are spectator ions. B) No precipitate will form. C) Pb(NO 3 ) 2 will precipitate; K + and I are spectator ions. D) PbI 2 will precipitate; K + and NO 3 are spectator ions. E) Pb 2+ and I are spectator ions, and PbI 2 will precipitate. 61. Which of the following is the correct net ionic equation for the reaction that occurs when solutions of Pb(NO 3 ) 2 and NH 4 Cl are mixed? A) Pb(NO 3 ) 2 (aq) + 2NH 4 Cl(aq) NH 4 NO 3 (aq) + PbCl 2 (s) B) Pb 2+ (aq) + 2Cl (aq) PbCl 2 (s) C) Pb 2+ (aq) + 2NO 3 (aq) + 2NH 4 + (aq) + 2Cl (aq) 2NH 4 + (aq) + 2NO3 (aq) + PbCl 2 (s) D) NH 4 + (aq)+ NO 3 (aq) 2NH 4 NO 3 (s) E) No reaction occurs when the solutions are mixed. 62. What is the chemical formula of the salt produced by the neutralization of hydrobromic acid with magnesium hydroxide? A) MgBr B) Mg 2 Br 3 C) Mg 3 Br 2 D) Mg 2 Br E) MgBr The oxidation number of Mn in KMnO 4 is A) +8 B) +7 C) +5 D) 7 E) 8 Page 13

14 64. The oxidation number of N in N 2 H 4 is A) +4 B) 4 C) +2 D) 2 E) Which one of the following is a redox reaction? A) 2Al(s) + 3H 2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) B) 2KBr(aq) + Pb(NO 3 ) 2 (aq) 2KNO 3 (aq) + PbBr 2 (s) C) CaBr 2 (aq) + H 2 SO 4 (aq) CaSO 4 (s) + 2HBr(g) D) H + (aq) + OH (aq) H 2 O(l) E) CO 3 2 (aq) + HSO 4 (aq) HCO 3 (aq) + SO 4 2 (aq) 66. In the following chemical reaction the oxidizing agent is 5S + 6KNO 3 + 2CaCO 3 3K 2 SO 4 + 2CaSO 4 + CO 2 + 3N 2 A) S B) N 2 C) KNO 3 D) CaSO 4 E) CaCO Identify the reducing agent in the following chemical reaction. 5Fe 2+ (aq) + MnO 4 (aq) + 8H + (aq) 5Fe 3+ (aq) + Mn 2+ (aq) + 4H 2 O(l) A) Fe 2+ B) MnO 4 C) H + D) Mn 2+ E) Fe What element is oxidized in the following chemical reaction? H 2 SO 4 + Cd(OH) 2 2H 2 O + CdSO 4 A) H B) S C) O D) Cd E) this is not a redox reaction Page 14

15 69. What element is reduced in the following chemical reaction? Cu + 2H 2 SO 4 CuSO 4 + SO 2 + 2H 2 O A) Cu B) H C) S D) O E) H 2 O 70. Predict the products of the following single replacement reaction. Fe(s) + CuSO 4 (aq) A) Cu(s) + FeSO 4 (aq) B) Fe(s) + Cu(s) + SO 4 (aq) C) CuS(s) + Fe 2 SO 4 (aq) D) FeCuSO 4 (aq) E) FeO(s) + CuSO 3 (aq) 71. Which of the following represents a halogen displacement reaction? A) 2KBr(aq) + Cl 2 (g) 2KCl(aq) + Br 2 (l) B) 2Na(s) + 2H 2 O(l) 2NaOH(aq) + H 2 (g) C) CaBr 2 (aq) + H 2 SO 4 (aq) CaSO 4 (s) + 2HBr(g) D) 2KNO 3 (s) 2KNO 2 (s) + O 2 (g) E) 2LiOH(aq) + H 2 SO 4 (aq) Li 2 SO 4 (aq) + 2H 2 O(l) 72. Which of the following represents a hydrogen displacement reaction? A) 2C 2 H 6 (g) + 7O 2 (g) 4CO 2 (g) + 6H 2 O(l) B) 2KBr(aq) + Cl 2 (g) 2KCl(aq) + Br 2 (l) C) N 2 (g) + 3H 2 (g) 2NH 3 (g) D) CaBr 2 (aq) + H 2 SO 4 (aq) CaSO 4 (s) + 2HBr(g) E) 2Al(s) + 3H 2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) 73. What mass of Na 2 SO 4 is needed to prepare 350. ml of a solution having a sodium ion concentration of M? A) 3.11 g B) 24.9 g C) 12.4 g D) 6.21 g E) 8.88 g Page 15

16 74. A 50.0 ml sample of M NH 4 NO 3 is diluted with water to a total volume of ml. What is the ammonium nitrate concentration in the resulting solution? A) 21.8 M B) M C) M D) M E) M ml of M nitric acid is added to 45.0 ml of M Mg(NO 3 ) 2. What is the concentration of nitrate ion in the final solution? A) M B) M C) M D) 1.10 M E) M ml of M NaOH was needed to neutralize 50.0 ml of an H 2 SO 4 solution. What is the concentration of the original sulfuric acid solution? A) M B) M C) M D) M E) M 77. One method of determining the concentration of hydrogen peroxide (H 2 O 2 ) in a solution is through titration with iodide ion. The net ionic equation for this reaction is H 2 O 2 + 2I +2H + I 2 + 2H 2 O A ml sample of a hydrogen peroxide solution is found to react completely with ml of a M KI solution. What is the concentration of hydrogen peroxide in the sample? A) M B) M C) M D) M E) M Page 16

17 78. A sample of a gas occupies ml at 25ºC and 760 mmhg. What volume will it occupy at the same temperature and 380 mmhg? A) 2,800 ml B) 2,100 ml C) 1,400 ml D) 1,050 ml E) 700 ml 79. The gas pressure in an aerosol can is 1.80 atm at 25 C. If the gas is an ideal gas, what pressure would develop in the can if it were heated to 475 C? A) atm B) atm C) 3.26 atm D) 4.52 atm E) 34.2 atm 80. At what temperature will a fixed amount of gas with a volume of 175 L at 15 C and 760. mmhg occupy a volume of 198 L at a pressure of 640. mm Hg? A) 274 C B) 214 C C) 114 C D) 1 C E) 59 C 81. At what temperature will a fixed mass of gas with a volume of 125 L at 15 C and 750. mmhg occupy a volume of 101 L at a pressure of 645 mm Hg? A) 73 C B) 10.4 C C) 2 C D) 34 C E) 200 C 82. A gas evolved during the fermentation of sugar was collected at 22.5 C and 702 mmhg. After purification its volume was found to be 25.0 L. How many moles of gas were collected? A) mol B) 1.05 mol C) 12.5 mol D) 22.4 mol E) 724 mol Page 17

18 83. Calculate the mass, in grams, of 2.74 L of CO gas measured at 33 C and 945 mmhg. A) g B) 2.46 g C) 3.80 g D) 35.2 g E) 206 g 84. Calculate the density, in g/l, of CO 2 gas at 27 C and atm pressure. A) g/l B) 1.12 g/l C) 9.93 g/l D) 46.0 g/l E) 2.17 kg/l 85. Which of the following gases will have the greatest density at the same specified temperature and pressure? A) H 2 B) CClF 3 C) CO 2 D) C 2 H 6 E) CF Determine the molar mass of chloroform gas if a sample weighing g is collected in a flask with a volume of 102 cm 3 at 97 C. The pressure of the chloroform is 728 mmhg. A) 187 g/mol B) 121 g/mol C) 112 g/mol D) 31.6 g/mol E) g/mol 87. Determine the molar mass of Freon-11 gas if a sample weighing g occupies 100. cm 3 at 95 C, and 1,000. mmhg. A) 0.19 g/mol B) 35.3 g/mol C) 70.9 g/mol D) 137 g/mol E) 384 g/mol Page 18

19 88. A gaseous compound is 30.4% nitrogen and 69.6% oxygen by mass. A 5.25-g sample of the gas occupies a volume of 1.00 L and exerts a pressure of 1.26 atm at 4.0 C. Which of the following is its molecular formula? A) NO B) NO 2 C) N 3 O 6 D) N 2 O 4 E) N 2 O A sample of hydrogen gas was collected over water at 21 C and 685 mmhg. The volume of the container was 7.80 L. Calculate the mass of H 2 (g) collected. (Vapor pressure of water = 18.6 mmhg at 21 C.) A) g B) g C) g D) 7.14 g E) 435 g 90. How many liters of chlorine gas at 25 C and atm can be produced by the reaction of 12.0 g of MnO 2? MnO 2 (s) + 4HCl(aq) MnCl 2 (aq) + 2H 2 O(l) + Cl 2 (g) A) L B) L C) L D) 3.09 L E) 3.55 L 91. Complete this sentence: The molecules of different samples of an ideal gas have the same average kinetic energies, at the same. A) pressure B) temperature C) volume D) density 92. Which of the following gas molecules have the highest average kinetic energy at 25 C? A) H 2 B) O 2 C) N 2 D) Cl 2 E) All the gases have the same average kinetic energy at 25 C. Page 19

20 93. Deviations from the ideal gas law are greater at A) low temperatures and low pressures. B) low temperatures and high pressures. C) high temperatures and high pressures. D) high temperatures and low pressures. 94. A method of removing CO 2 from a spacecraft is to allow the CO 2 to react with sodium hydroxide. (The products of the reaction are sodium carbonate and water.) What volume of carbon dioxide at 25 C and 749 mmhg can be removed per kilogram of sodium hydroxide that reacts? A) 301 L B) 284 L C) 276 L D) 310 L E) 620 L Page 20

21 Answer Key 1. E 2. B 3. D 4. A 5. C 6. D 7. A 8. A 9. A 10. A 11. E 12. C 13. C 14. A 15. E 16. C 17. B 18. A 19. C 20. D 21. A 22. E 23. D 24. D 25. E 26. A 27. E 28. A 29. C 30. D 31. C 32. D 33. C 34. D 35. D 36. B 37. A 38. E 39. D 40. C 41. E 42. B 43. E 44. D Page 21

22 45. E 46. C 47. A 48. B 49. B 50. C 51. B 52. C 53. E 54. B 55. C 56. D 57. A 58. D 59. A 60. D 61. B 62. E 63. B 64. D 65. A 66. C 67. A 68. E 69. C 70. A 71. A 72. E 73. A 74. D 75. A 76. C 77. A 78. A 79. D 80. D 81. A 82. A 83. C 84. A 85. B 86. B 87. D 88. D 89. B 90. E Page 22

23 91. B 92. E 93. B 94. D Page 23

Chapter 01 Quiz Chang General Chemistry

Chapter 01 Quiz Chang General Chemistry 1. A bathroom-type scale is calibrated (marked off) in tenths of a kilogram from 1 to 200 kg and you can estimate to the nearest two-hundredths of a kilogram. How