AP Chapter 4 Study Questions

Transcription

1 Class: Date: AP Chapter 4 Study Questions True/False Indicate whether the statement is true or false. 1. Ca(OH) 2 is a strong base. 2. The compound HClO 4 is a weak acid. 4. The compound NH 4 Cl is a weak acid. 5. Ammonia is a strong base. 3. HNO 2 is a strong acid. Multiple Choice Identify the choice that best completes the statement or answers the question. 6. The total concentration of ions in a M solution of HCl is. a. essentially zero. b M c M d M e M 7. A strong electrolyte is one that completely in solution. a. reacts b. associates c. disappears d. ionizes 8. A weak electrolyte exists predominantly as in solution. a. atoms b. ions c. molecules d. electrons e. an isotope 9. Which of the following are strong electrolytes? HCl HC 2 H 3 O 2 NH 3 KCl a. HCl, KCl b. HCl, NH 3, KCl c. HCl, HC 2 H 3 O 2, NH 3, KCl d. HCl, HC 2 H 3 O 2, KCl e. HC 2 H 3 O 2, KCl 10. Which of the following are weak electrolytes? HCl HC 2 H 3 O 2 NH 3 KCl a. HCl, KCl b. HCl, HC 2 H 3 O 2, NH 3, KCl c. HC 2 H 3 O 2, KCl d. HC 2 H 3 O 2, NH 3 e. HCl, HC 2 H 3 O 2, KCl 11. What are the spectator ions in the reaction between KOH (aq) and HNO 3 (aq)? a. K + and H + b. H + and OH c. K + and NO 3 d. H + and NO 3 e. OH only 12. The net ionic equation for the reaction between aqueous solutions of HF and KOH is. a. HF + KOH H 2 O + K + + F b. HF + OH H 2 O + F c. HF + K + + OH H 2 O + KF d. H + + OH H 2 O e. H + + F + K + + OH H 2 O + K + + F 13. Combining aqueous solutions of BaI 2 and Na 2 SO 4 affords a precipitate of BaSO 4. Which ion(s) is/are spectator ions in the reaction? a. Ba 2+ only b. Na + only c. Ba 2+ and SO 4 2 d. Na + and I e. SO 4 2 and I 1

2 14. Which ion(s) is/are spectator ions in the formation of a precipitate of AgCl via combining aqueous solutions of CoCl 2 and AgNO 3? a. Co 2+ and NO 3 b. NO 3 and Cl c. Co 2+ and Ag + d. Cl e. NO The balanced net ionic equation for precipitation of CaCO 3 when aqueous solutions of Na 2 CO 3 and CaCl 2 are mixed is. a. 2Na + (aq) + CO 3 2 (aq) Na 2 CO 3 (aq) b. 2Na + (aq) + 2Cl (aq) 2NaCl (aq) c. Na + (aq) + Cl (aq) NaCl (aq) d. Ca 2+ (aq) + CO 3 2 (aq) CaCO 3 (s) e. Na 2 CO 3 (aq) + CaCl 2 (aq) 2NaCl (aq) + CaCO 3 (s) 16. When aqueous solutions of AgNO 3 and KI are mixed, AgI precipitates. The balanced net ionic equation is. a. Ag + (aq) + I (aq) AgI (s) b. Ag + (aq) + NO 3 (aq) AgNO 3 (s) c. Ag + (aq) + NO 3 (aq) AgNO 3 (aq) d. AgNO 3 (aq) + KI (aq) AgI (s) + KNO 3 (aq) e. AgNO 3 (aq) + KI (aq) AgI (aq) + KNO 3 (s) 17. When H 2 SO 4 is neutralized by NaOH in aqueous solution, the net ionic equation is. a. SO 4 2 (aq) + 2Na + (aq) Na 2 SO 4 (aq) b. SO 4 2 (aq) + 2Na + (aq) Na 2 SO 4 (s) c. H + (aq) + OH (aq) H 2 O (l) d. H 2 SO 4 (aq) + 2OH (aq) 2H 2 O (l) + SO 4 2 (aq) e. 2H + (aq) + 2NaOH (aq) 2H 2 O (l) + 2Na + (aq) 18. The spectator ions in the reaction between aqueous perchloric acid and aqueous barium hydroxide are. a. OH and ClO 4 b. H +, OH, ClO 4, and Ba 2+ c. H + and OH d. H + and Ba 2+ e. ClO 4 and Ba The spectator ions in the reaction between aqueous hydrofluoric acid and aqueous barium hydroxide are. a. OH, F, and Ba 2+ b. F and Ba 2+ c. OH and F d. Ba 2+ only e. H+, OH, F, and Ba The spectator ions in the reaction between aqueous hydrochloric acid and aqueous ammonia are. a. H + and NH 3 b. H +, Cl, NH 3, and NH 4 + c. Cl and NH 4 + d. H +, Cl, and NH 4 + e. Cl only 21. Which of the following are strong acids? HI HNO 3 HF HBr a. HF, HBr b. HI, HNO 3, HF, HBr c. HI, HF, HBr d. HNO 3, HF, HBr e. HI, HNO 3, HBr 22. Which hydroxides are strong bases? Sr(OH) 2 KOH NaOH Ba(OH) 2 a. KOH, Ba(OH) 2 b. KOH, NaOH c. KOH, NaOH, Ba(OH) 2 d. Sr(OH) 2, KOH, NaOH, Ba(OH) 2 e. None of these is a strong base. 23. A neutralization reaction between an acid and a metal hydroxide produces. a. water and a salt b. hydrogen gas c. oxygen gas d. sodium hydroxide e. ammonia 24. Of the metals below, only will not dissolve in an aqueous solution containing nickel ions. aluminum chromium barium tin potassium a. aluminum b. chromium c. barium d. tin e. potassium 2

3 25. Which of these metals is the least easily oxidized? Na Au Fe Ca Ag a. Na b. Au c. Fe d. Ca e. Ag 26. Of the following elements, is the only one that cannot be found in nature in its elemental form. Cu Hg Au Ag Na a. Cu b. Hg c. Au d. Ag e. Na 27. Of the following elements, is the most easily oxidized. oxygen fluorine nitrogen aluminum gold a. oxygen b. fluorine c. nitrogen d. aluminum e. gold 28. Based on the equations below, which metal is the most active? Pb(NO 3 ) 2 (aq) + Ni (s) Ni(NO 3 ) 2 (aq) + Pb (s) Pb(NO 3 ) 2 (aq) + Ag (s) No reaction Cu(NO 3 ) 2 (aq) + Ni (s) Ni(NO 3 ) 2 (aq) + Cu (s) a. Ni b. Ag c. Cu d. Pb e. N 29. When gold dissolves in aqua regia, what is reduced? H + N +5 Cl H 2 O Au a. H + b. N +5 c. Cl d. H 2 O e. Au 30. What is the concentration (M) of KCl in a solution made by mixing 25.0 ml of M KCl with 50.0 ml of M KCl? a b c d e What is the concentration (M) of CH 3 OH in a solution prepared by dissolving 11.7 g of CH 3 OH in sufficient water to give exactly 230 ml of solution? a b c d e How many grams of H 3 PO 4 are in 175 ml of a 3.5 M solution of H 3 PO 4? a b. 60 c. 20 d. 4.9 e What is the concentration (M) of a NaCl solution prepared by dissolving 9.3 g of NaCl in sufficient water to give 350 ml of solution? a. 18 b c d. 27 e How many grams of NaOH (MW = 40.0) are there in ml of a M NaOH solution? a b. 114 c d e How many grams of CH 3 OH must be added to water to prepare 150 ml of a solution that is 2.0 M CH 3 OH? a b c. 2.4 d. 9.6 e There are mol of bromide ions in L of a M solution of AlBr 3. a b c d e

4 37. How many moles of Co 2+ are present in L of a M solution of CoI 2? a b c d e How many moles of K + are present in 343 ml of a 1.27 M solution of K 3 PO 4? a b c d e What are the respective concentrations (M) of Na + and SO 4 2 afforded by dissolving mol Na 2 SO 4 in water and diluting to 1.33 L? a and b and 1.33 c and d and e and Calculate the concentration (M) of sodium ions in a solution made by diluting 50.0 ml of a M solution of sodium sulfide to a total volume of ml. a b c d e An aqueous ethanol solution (400 ml) was diluted to 4.00 L, giving a concentration of M. The concentration of the original solution was M. a b c d e The concentration (M) of an aqueous methanol produced when L of a 2.00 M solution was diluted to L is. a b c d e The molarity (M) of an aqueous solution containing 22.5 g of sucrose (C 12 H 22 O 11 ) in 35.5 ml of solution is. a b c d e The molarity (M) of an aqueous solution containing 52.5 g of sucrose (C 12 H 22 O 11 ) in 35.5 ml of solution is. a b c d e The molarity (M) of an aqueous solution containing 22.5 g of glucose (C 6 H 12 O 6 ) in 35.5 ml of solution is. a b c d e The molarity of an aqueous solution containing 75.3 g of glucose (C 6 H 12 O 6 ) in 35.5 ml of solution is. a b c d e How many grams of sodium chloride are there in 55.0 ml of a 1.90 M aqueous solution of sodium chloride? a b c d e How many grams of sodium chloride are there in ml of a 1.90 M aqueous solution of sodium chloride? a b c d e The molarity of a solution prepared by diluting ml of M aqueous K 2 Cr 2 O 7 to 500. ml is. a b c d e The molarity of a solution prepared by diluting ml of M aqueous K 2 Cr 2 O 7 to 500. ml is. a b c d e The concentration of chloride ions in a M solution of potassium chloride is. a M b M c M d M e M 52. The concentration of iodide ions in a M solution of barium iodide is. a M b M c M d M e M 4

5 53. The concentration of species in 500 ml of a M solution of sodium sulfate is M sodium ion and M sulfate ion. a , b , c , d , e , When mol of HC 2 H 3 O 2 is combined with enough water to make a ml solution, the concentration of HC 2 H 3 O 2 is M. a b c d e In a titration of ml of M H 2 SO 4, ml of a M KOH solution is required for neutralization. a b c d e Oxalic acid is a diprotic acid. Calculate the percent of oxalic acid (H 2 C 2 O 4 ) in a solid given that a g sample of that solid required ml of M NaOH for neutralization. a b c d e A 17.5 ml sample of an acetic acid (CH 3 CO 2 H) solution required 29.6 ml of M NaOH for neutralization. The concentration of acetic acid was M. a b c. 134 d e A 25.5 ml aliquot of HCl (aq) of unknown concentration was titrated with M NaOH (aq). It took 51.2 ml of the base to reach the endpoint of the titration. The concentration (M) of the acid was. a b c d e A 31.5 ml aliquot of HNO 3 (aq) of unknown concentration was titrated with M NaOH (aq). It took 23.9 ml of the base to reach the endpoint of the titration. The concentration (M) of the acid was. a b c d e A 31.5 ml aliquot of H 2 SO 4 (aq) of unknown concentration was titrated with M NaOH (aq). It took 23.9 ml of the base to reach the endpoint of the titration. The concentration (M) of the acid was. a b c d e Of the species below, only is not an electrolyte. a. HCl b. Rb 2 SO 4 c. Ar d. KOH e. NaCl 62. The balanced molecular equation for complete neutralization of H 2 SO 4 by KOH in aqueous solution is. a. 2H + (aq) + 2OH (aq) 2H 2 O (l) b. 2H + (aq) + 2KOH (aq) 2H 2 O (l) + 2K + (aq) c. H 2 SO 4 (aq) + 2OH (aq) 2H 2 O (l) + SO 4 2 (aq) d. H 2 SO 4 (aq) + 2KOH (aq) 2H 2 O (l) + K 2 SO 4 (s) e. H 2 SO 4 (aq) + 2KOH (aq) 2H 2 O (l) + K 2 SO 4 (aq) 63. Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? a. calcium nitrate b. sodium bromide c. lead nitrate d. barium nitrate e. sodium chloride 64. Aqueous solutions of a compound did not form precipitates with Cl, Br, I, SO 4 2, CO 3 2, PO 4 3, OH, or S 2. This highly watersoluble compound produced the foulsmelling gas H 2 S when the solution was acidified. This compound is. a. Pb(NO 3 ) 2 b. (NH 4 ) 2 S c. KBr d. Li 2 CO 3 e. AgNO 3 5

6 65. The net ionic equation for formation of an aqueous solution of NiI 2 accompanied by evolution of CO 2 gas via mixing solid NiCO 3 and aqueous hydriodic acid is. a. 2NiCO 3 (s) + HI (aq) 2H 2 O (l) + CO 2 (g) + 2Ni 2+ (aq) b. NiCO 3 (s) + I (aq) 2H 2 O (l) + CO 2 (g) + Ni 2+ (aq) + HI (aq) c. NiCO 3 (s) + 2H + (aq) H 2 O (l) + CO 2 (g) + Ni 2+ (aq) d. NiCO 3 (s) + 2HI (aq) 2H 2 O (l) + CO 2 (g) + NiI 2 (aq) e. NiCO 3 (s) + 2HI (aq) H 2 O (l) + CO 2 (g) + Ni 2+ (aq) + 2I (aq) 66. The net ionic equation for formation of an aqueous solution of Al(NO 3 ) 3 via mixing solid Al(OH) 3 and aqueous nitric acid is. a. Al(OH) 3 (s) + 3HNO 3 (aq) 3H 2 O (l) + Al(NO 3 ) 3 (aq) b. Al(OH) 3 (s) + 3NO 3 (aq) 3OH (aq) + Al(NO 3 ) 3 (aq) c. Al(OH) 3 (s) + 3NO 3 (aq) 3OH (aq) + Al(NO 3 ) 3 (s) d. Al(OH) 3 (s) + 3H + (aq) 3H 2 O (l) + Al 3+ (aq) e. Al(OH) 3 (s) + 3HNO 3 (aq) 3H 2 O (l) + Al 3+ (aq) + NO 3 (aq) 67. Which of the following is soluble in water at 25 C? a. Fe 3 (PO 4 ) 2 b. Fe(OH) 2 c. Fe(NO 3 ) 2 d. FeCO 3 e. FeS 68. Which of the following is insoluble in water at 25 C? a. Mg 3 (PO 4 ) 2 b. Na 2 S c. (NH 4 ) 2 CO 3 d. Ca(OH) 2 e. Ba(C 2 H 3 O 2 ) When aqueous solutions of are mixed, a precipitate forms. a. NiBr 2 and AgNO 3 b. NaI and KBr c. K 2 SO 4 and CrCl 3 d. KOH and Ba(NO 3 ) 2 e. Li 2 CO 3 and CsI 70. Which one of the following compounds is insoluble in water? a. Na 2 CO 3 b. K 2 SO 4 c. Fe(NO 3 ) 3 d. ZnS e. AgNO Which combination will produce a precipitate? a. NaC 2 H 3 O 2 (aq) and HCl (aq) b. NaOH (aq) and HCl (aq) c. AgNO 3 (aq) and Ca(C 2 H 3 O 2 ) 2 (aq) d. KOH (aq) and Mg(NO 3 ) 2 (aq) e. NaOH (aq) and HCl (aq) 72. Which combination will produce a precipitate? a. NH 4 OH (aq) and HCl (aq) b. AgNO 3 (aq) and Ca(C 2 H 3 O 2 ) 2 (aq) c. NaOH (aq) and HCl (aq) d. NaCl (aq) and HC 2 H 3 O 2 (aq) e. NaOH (aq) and Fe(NO 3 ) 2 (aq) 73. With which of the following will the ammonium ion form an insoluble salt? a. chloride b. sulfate c. carbonate d. sulfate and carbonate e. none of the above 74. With which of the following will the potassium ion form an insoluble salt? a. chloride b. sulfate c. carbonate d. sulfate and carbonate e. none of the above 75. The net ionic equation for the reaction between aqueous sulfuric acid and aqueous sodium hydroxide is. a. H + (aq) + HSO 4 (aq) + 2OH (aq) 2H 2 O (l) + SO 4 2 (aq) b. H + (aq) + HSO 4 (aq) + 2Na + (aq) + 2OH (aq) 2H 2 O (l) + 2Na + (aq) + SO 4 2 (aq) c. SO 4 2 (aq) + 2Na + (aq) 2Na + (aq) + SO 4 2 (aq) d. H + (aq) + OH (aq) H 2 O( l) e. 2H + (aq) + SO 4 2 (aq) + 2Na + (aq) + 2OH (aq) 2H 2 O (l) + 2Na + (aq) + SO 4 2 (aq) 76. The net ionic equation for the reaction between aqueous nitric acid and aqueous sodium hydroxide is. a. H + (aq) + HNO 3 (aq) + 2OH (aq) 2H 2 O (l) + NO 3 (aq) b. HNO 3 (aq) + NaOH (aq) NaNO 3 (aq) + H 2 O (l) c. H + (aq) + OH (aq) H 2 O (l) d. HNO 3 (aq) + OH (aq) NO 3 (aq) + H 2 O (l) e. H + (aq) + Na + (aq) +OH (aq) H 2 O (l) + Na + (aq) 6

7 77. The reaction between strontium hydroxide and chloric acid produces. a. a molecular compound and a weak electrolyte b. two weak electrolytes c. two strong electrolytes d. a molecular compound and a strong electrolyte e. two molecular compounds 78. Which one of the following is a diprotic acid? a. nitric acid b. chloric acid c. phosphoric acid d. hydrofluoric acid e. sulfuric acid 79. Which one of the following is a triprotic acid? a. nitric acid b. chloric acid c. phosphoric acid d. hydrofluoric acid e. sulfuric acid 80. Which one of the following solutions will have the greatest concentration of hydroxide ions? a M rubidium hydroxide b M magnesium hydroxide c M ammonia d M beryllium hydroxide e M hydrochloric acid 81. Which one of the following is a weak acid? a. HNO 3 b. HCl c. HI d. HF e. HClO Which of the following are weak acids? a. HF, HBr b. HI, HNO 3, HBr c. HI, HF d. HF e. none of the above 83. A compound was found to be soluble in water. It was also found that addition of acid to an aqueous solution of this compound resulted in the formation of carbon dioxide. Which one of the following cations would form a precipitate when added to an aqueous solution of this compound? a. NH 4 + b. K+ c. Cr 3+ d. Rb + e. Na Which hydroxides are weak bases? a. KOH, Ba(OH) 2 b. Sr(OH) 2, KOH, NaOH, Ba(OH) 2 c. KOH, NaOH d. KOH, NaOH, Ba(OH) 2 e. None of these is a weak base. 85. The balanced reaction between aqueous potassium hydroxide and aqueous acetic acid is. a. KOH (aq) + HC 2 H 3 O 2 (aq) OH (l) + HC 2 H 3 O 2 + (aq) + K (s) b. KOH (aq) + HC 2 H 3 O 2 (aq) H 2 O (l) + KC 2 H 3 O 2 ( aq) c. KOH (aq) + HC 2 H 3 O 2 (aq) H 2 C 2 H 3 O 3 (aq) + K (s) d. KOH (aq) + HC 2 H 3 O 2 (aq) KC 2 H 3 O 3 (aq) + H 2 (g) e. KOH (aq) + HC 2 H 3 O 2 (aq) H 2 KC 2 H 3 O (aq) + O 2 (g) 86. The balanced reaction between aqueous nitric acid and aqueous strontium hydroxide is. a. HNO 3 (aq) + Sr(OH) 2 (aq) Sr(NO 3 ) 2 (aq) + H 2 (g) b. HNO 3 (aq) + Sr(OH) 2 (aq) H 2 O (l) + Sr(NO 3 ) 2 (aq) c. HNO 3 (aq) + SrOH (aq) H 2 O (l) + SrNO 3 (aq) d. 2HNO 3 (aq) + Sr(OH) 2 (aq) 2H 2 O (l) + Sr(NO 3 ) 2 (aq) e. 2HNO 3 (aq) + Sr(OH) 2 (aq) Sr(NO 3 ) 2 (aq) + 2H 2 (g) 87. In which reaction does the oxidation number of oxygen increase? a. Ba(NO 3 ) 2 (aq) + K 2 SO 4 (aq) BaSO 4 (s) + 2 KNO 3 (aq) b. HCl (aq) + NaOH (aq) NaCl (aq) + H 2 O (l) c. MgO (s) + H 2 O (l) Mg(OH) 2 (s) d. 2 SO 2 (g) + O 2 (g) 2 SO 3 (g) e. 2 H 2 O (l) 2 H 2 (g) + O 2 (g) 88. In which reaction does the oxidation number of hydrogen change? a. HCl (aq) + NaOH (aq) NaCl (aq) + H 2 O (l) b. 2 Na (s) + 2 H 2 O (l) 2 NaOH (aq) + H 2 (g) c. CaO (s) + H 2 O (l) Ca(OH) 2 (s) d. 2 HClO 4 (aq) + CaCO 3 (s) Ca(ClO 4 ) 2 (aq) + H 2 O (l) + CO 2 (g) e. SO 2 (g) + H 2 O (l) H 2 SO 3 (aq) 89. In which species does sulfur have the highest oxidation number? a. S 8 (elemental form of sulfur) b. H 2 S c. SO 2 d. H 2 SO 3 e. K 2 SO In which species does nitrogen have the highest oxidation number? a. N 2 b. NH 3 c. HNO 2 d. NO 2 e. NaNO 3 7

8 91. Which compound has the atom with the highest oxidation number? a. CaS b. Na 3 N c. MgSO 3 d. Al(NO 2 ) 3 e. NH 4 Cl 92. Of the choices below, which would be the best for the lining of a tank intended for use in storage of hydrochloric acid? a. copper b. zinc c. nickel d. iron e. tin 93. Which of these metals will be oxidized by the ions of cobalt? a. nickel b. tin c. iron d. copper e. silver 94. Which of these metals will be oxidized by the ions of aluminum? a. magnesium b. zinc c. chromium d. iron e. nickel 95. One method for removal of metal ions from a solution is to convert the metal to its elemental form so it can be filtered out as a solid. Which metal can be used to remove aluminum ions from solution? a. zinc b. cobalt c. lead d. copper e. none of these 96. Of the reactions below, only is not spontaneous. a. Mg (s) + 2HCl (aq) MgCl 2 (aq) + H 2 (g) b. 2Ag (s) + 2HNO 3 (aq) 2AgNO 3 (aq) + H 2 (g) c. 2Ni (s) + H 2 SO 4 (aq) Ni 2 SO 4 (aq) + H 2 (g) d. 2Al (s) + 6HBr (aq) 2AlBr 3 (aq) + 3H 2 (g) e. Zn (s) + 2HI (aq) ZnI 2 (aq) + H 2 (g) 97. Based on the activity series, which one of the reactions below will occur? a. Zn (s) + MnI 2 (aq) ZnI 2 (aq) + Mn (s) b. SnCl 2 (aq) + Cu (s) Sn (s) + CuCl 2 (aq) c. 2AgNO 3 (aq) + Pb (s) 2Ag (s) + Pb(NO 3 ) 2 (aq) d. 3Hg (l) + 2Cr(NO 3 ) 3 (aq) 3Hg(NO 3 ) 2 + 2Cr (s) e. 3FeBr 2 (aq) + 2Au (s) 3Fe (s) + 2AuBr 3 (aq) 98. Based on the activity series, which one of the reactions below will occur? a. Fe (s) + ZnCl 2 (aq) FeCl 2 (aq) + Zn (s) b. Mn (s) + NiCl 2 (aq) MnCl 2 (aq) + Ni (s) c. Pb (s) + NiI 2 (aq) PbI 2 (aq) + Ni (s) d. SnBr 2 (aq) + Cu (s) CuBr 2 (aq) + Sn (s) e. None of the reactions will occur. 99. The net ionic equation for the dissolution of zinc metal in aqueous hydrobromic acid is. a. Zn (s) + 2Br (aq) ZnBr 2 (aq) b. Zn (s) + 2HBr (aq) ZnBr 2 (aq) + 2H + (aq) c. Zn (s) + 2HBr (aq) ZnBr 2 (s) + 2H + (aq) d. Zn (s) + 2H + (aq) Zn 2+ (aq) + H 2 (g) e. 2Zn (s) + H + (aq) 2Zn 2+ (aq) + H 2 (g) 100. Sodium does not occur in nature as Na (s) because. a. it is easily reduced to Na b. it is easily oxidized to Na + c. it reacts with water with great difficulty d. it is easily replaced by silver in its ores e. it undergoes a disproportionation reaction to Na and Na Zinc is more active than cobalt and iron but less active than aluminum. Cobalt is more active than nickel but less active than iron. Which of the following correctly lists the elements in order of increasing activity? a. Co < Ni < Fe < Zn < Al b. Ni < Fe < Co < Zn < Al c. Ni < Co < Fe < Zn < Al d. Fe < Ni < Co < Al < Zn e. Zn < Al < Co < Ni < Fe 102. Oxidation is the and reduction is the. a. gain of oxygen, loss of electrons b. loss of oxygen, gain of electrons c. loss of electrons, gain of electrons d. gain of oxygen, loss of mass e. gain of electrons, loss of electrons 103. Oxidation and mean essentially the same thing. a. activity b. reduction c. metathesis d. decomposition e. corrosion 8

9 104. Oxidation cannot occur without. a. acid b. oxygen c. water d. air e. reduction 105. Which of the following is an oxidationreduction reaction? a. Cu (s) + 2AgNO 3 (aq) 2Ag (s) + Cu(NO 3 ) 2 (aq) b. HCl (aq) + NaOH (aq) H 2 O (l) + NaCl (aq) c. AgNO 3 (aq) + HCl (aq) AgCl (s) + HNO 3 (aq) d. Ba(C 2 H 3 O 2 ) 2 (aq) + Na 2 SO 4 (aq) BaSO 4 (s) + 2NaC 2 H 3 O 2 (aq) e. H 2 CO 3 (aq) + Ca(NO 3 ) 2 (aq) 2HNO 3 (aq) + CaCO 3 (s) 106. Which of the following reactions will not occur as written? a. Zn (s) + Pb(NO 3 ) 2 (aq) Pb (s) + Zn(NO 3 ) 2 (aq) b. Mg (s) + Ca(OH) 2 (aq) Ca (s) + Mg(OH) 2 (aq) c. Sn (s) + 2AgNO 3 (aq) 2Ag (s) + Sn(NO 3 ) 2 (aq) d. Co (s) + 2AgCl (aq) 2Ag (s) + CoCl 2 (aq) e. Co (s) + 2HI (aq) H 2 (g) + CoI 2 (aq) 107. Which one of the following is a correct expression for molarity? a. mol solute/l solvent b. mol solute/ml solvent c. mmol solute/ml solution d. mol solute/kg solvent e. µmol solute/l solution 108. Which one of the following is not true concerning 2.00 L of M solution of Ca 3 (PO 4 ) 2? a. This solution contains mol of Ca 3 (PO 4 ) 2. b. This solution contains mol of oxygen atoms. c L of this solution is required to furnish mol of Ca 2 + ions. d. There are phosphorus atoms in ml of this solution. e. This solution contains mol of Ca A M K 2 SO 4 solution is produced by. a. dilution of ml of 1.00 M K 2 SO 4 to 1.00 L b. dissolving 43.6 g of K 2 SO 4 in water and diluting to a total volume of ml c. diluting 20.0 ml of 5.00 M K 2 SO 4 solution to ml d. dissolving 20.2 g of K 2 SO 4 in water and diluting to ml, then diluting 25.0 ml of this solution to a total volume of ml e. dilution of 1.00 ml of 250 M K 2 SO 3 to 1.00 L 110. Which solution has the same number of moles of NaOH as ml of 0.100M solution of NaOH? a ml of 0.200M solution of NaOH b ml of 0.175M solution of NaOH c ml of 0.145M solution of NaOH d ml of 0.125M solution of NaOH e ml of M solution of NaOH 111. What are the respective concentrations (M) of Fe 3+ and I afforded by dissolving mol FeI 3 in water and diluting to 725 ml? a and b and c and d and e and What are the respective concentrations (M) of Cu +2 and Cl afforded by dissolving mol CuCl 2 in water and diluting to 345 ml? a and b and 1.16 c and d and 2.32 e and A tenfold dilution of a sample solution can be obtained by taking. a. 1 part sample and 9 parts solvent b. 1 part sample and 10 parts solvent c. 9 parts sample and 1 part solvent d. 10 parts sample and 1 part solvent e. 99 parts sample and 1 part solvent 114. Mixing ml of an aqueous solution with ml of water represents a. a. crystallization b. neutralization c. twofold dilution d. tenfold dilution e. titration 9

10 115. You are given two clear solutions of the same unknown monoprotic acid, but with different concentrations. Which statement is true? a. There is no chemical method designed to tell the two solutions apart. b. It would take more base solution (per milliliter of the unknown solution) to neutralize the more concentrated solution. c. A smaller volume of the less concentrated solution contains the same number of moles of the acid compared to the more concentrated solution. d. If the same volume of each sample was taken, then more base solution would be required to neutralize the one with lower concentration. e. The product of concentration and volume of the less concentrated solution equals the product of concentration and volume of the more concentrated solution A M solution of will contain the highest concentration of potassium ions. a. potassium phosphate b. potassium hydrogen carbonate c. potassium hypochlorite d. potassium iodide e. potassium oxide 117. Which solution contains the largest number of moles of chloride ions? a ml of 0.500M BaCl 2 b ml of 1.000M NaCl c ml of 0.500M FeCl 3 d ml of 0.400M KCl e ml of 0.100M CaCl What volume (ml) of a concentrated solution of sodium hydroxide (6.00 M) must be diluted to 200. ml to make a 1.50 M solution of sodium hydroxide? a b c d e What volume (ml) of a concentrated solution of sodium hydroxide (6.00 M) must be diluted to ml to make a M solution of sodium hydroxide? a b. 176 c d e What mass (g) of potassium chloride is contained in ml of a potassium chloride solution that has a chloride ion concentration of M? a b c d e What volume (ml) of a 3.45 M lead nitrate solution must be diluted to ml to make a M solution of lead nitrate? a. 129 b. 109 c. 101 d. 56 e What mass (g) of barium iodide is contained in 250 ml of a barium iodide solution that has an iodide ion concentration of M? a b c d e What mass (g) of AgBr is formed when 35.5 ml of M AgNO 3 is treated with an excess of aqueous hydrobromic acid? a b c d e What mass (g) of CaF 2 is formed when 47.8 ml of M NaF is treated with an excess of aqueous calcium nitrate? a b c d e What volume (ml) of M NaOH is required to neutralize 13.7 ml of M HCl? a b c d e What volume (L) of M HNO 3 is required to neutralize a solution prepared by dissolving 17.5 g of NaOH in 350 ml of water? a b c d e An aliquot (28.7 ml) of a KOH solution required 31.3 ml of M HCl for neutralization. What mass (g) of KOH was in the original sample? a b c d e The point in a titration at which the indicator changes is called the. a. setpoint b. indicator point c. standard point d. endpoint e. volumetric point 10

11 129. Which of the following would require the largest volume of M sodium hydroxide solution for neutralization? a ml of M phosphoric acid b ml of M nitric acid c. 5.0 ml of M sulfuric acid d ml of M hydrobromic acid e ml of M perchloric acid 130. Which one of the following substances is produced during the reaction of an acid with a metal hydroxide? a. H 2 b. H 2 O c. CO 2 d. NaOH e. O A 36.3 ml aliquot of M H 2 SO 4 (aq) is to be titrated with M NaOH (aq). What volume (ml) of base will it take to reach the equivalence point? a b c. 187 d e A 13.8 ml aliquot of M H 3 PO 4 (aq) is to be titrated with M NaOH (aq). What volume (ml) of base will it take to reach the equivalence point? a b c. 199 d e What volume (ml) of M perchloric acid can be neutralized with 115 ml of M sodium hydroxide? a. 125 b c. 188 d. 750 e What volume (ml) of M phosphoric acid can be neutralized with 115 ml of M sodium hydroxide? a. 125 b. 375 c. 750 d. 188 e is an oxidation reaction. a. Ice melting in a soft drink b. Table salt dissolving in water for cooking vegetables c. Rusting of iron d. The reaction of sodium chloride with lead nitrate to form lead chloride and sodium nitrate e. Neutralization of HCl by NaOH 137. A stock solution of HNO 3 is prepared and found to contain 13.5 M of HNO 3. If 25.0 ml of the stock solution is diluted to a final volume of L, the concentration of the diluted solution is M. a b c d. 675 e Pure acetic acid (HC 2 H 3 O 2 ) is a liquid and is known as glacial acetic acid. Calculate the molarity of a solution prepared by dissolving ml of glacial acetic acid at 25 C in sufficient water to give ml of solution. The density of glacial acetic acid at 25 C is 1.05 g/ml. a b c d e A solution is prepared by mixing 50.0 ml of M HCl and 10.0 ml of M NaCl. What is the molarity of chloride ion in this solution? a b c d e A solution is prepared by adding 1.60 g of solid NaCl to 50.0 ml of M CaCl 2. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 ml. a b c d e Calculate the number of grams of solute in ml of M KOH. a. 148 b c d e What is the molarity of a NaOH solution if 28.2 ml of a M H 2 SO 4 solution is required to neutralize a 25.0mL sample of the NaOH solution? a b c d. 125 e How many milliliters of a stock solution of 11.1 M HNO 3 would be needed to prepare L of M HNO 3? a b c d e

12 143. Lead ions can be precipitated from aqueous solutions by the addition of aqueous iodide: Pb 2+ (aq) + 2I (aq) PbI 2 (s) Lead iodide is virtually insoluble in water so that the reaction appears to go to completion. How many milliliters of M HI(aq) must be added to a solution containing mol of to completely precipitate the lead? a b. 394 c. 197 d e Silver ions can be precipitated from aqueous solutions by the addition of aqueous chloride: Ag + (aq) + Cl (aq) AgCl (s) Silver chloride is virtually insoluble in water so that the reaction appears to go to completion. How many grams of solid NaCl must be added to 25.0 ml of M AgNO 3 solution to completely precipitate the silver? a b c d e How many milliliters of M HClO 4 solution are needed to neutralize ml of M NaOH? a b c d e Completion Complete each statement The solvent in an aqueous solution is Calculate the concentration (M) of arsenic acid (H 3 AsO 4 ) in a solution if ml of that solution required ml of M KOH for neutralization How many moles of BaCl 2 are formed in the neutralization of 393 ml of M Ba(OH) 2 with aqueous HCl? 149. What is the concentration (M) of sodium ions in 4.57 L of a.398 M Na 3 P solution? 150. What is the concentration (M) of CH 3 OH in a solution prepared by dissolving 16.8 g of CH 3 OH in sufficient water to give exactly 230 ml of solution? 151. How many grams of H 3 PO 4 are in 265 ml of a 1.50 M solution of H 3 PO 4? 152. What is the concentration (M) of a NaCl solution prepared by dissolving 7.2 g of NaCl in sufficient water to give 425 ml of solution? 153. How many grams of NaOH (MW = 40.0) are there in ml of a M NaOH solution? 154. How many grams of CH 3 OH must be added to water to prepare 150mL of a solution that is 2.0 M CH 3 OH? 155. There are mol of bromide ions in L of a 0.500M solution of AlBr How many moles of Co 2+ are present in L of a M solution of CoI 2? 157. Calculate the concentration (M) of sodium ions in a solution made by diluting 40.0 ml of a M solution of sodium sulfide to a total volume of 300 ml. 12

13 AP Chapter 4 Study Questions Answer Section TRUE/FALSE 1. ANS: T PTS: 1 DIF: 2 REF: Sec ANS: F PTS: 1 DIF: 1 REF: Sec ANS: F PTS: 1 DIF: 2 REF: Sec ANS: T PTS: 1 DIF: 1 REF: Sec ANS: F PTS: 1 DIF: 3 REF: Sec. 4.3 MULTIPLE CHOICE 6. ANS: D PTS: 1 DIF: 1 REF: Sec ANS: D PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: A PTS: 1 DIF: 2 REF: Sec ANS: D PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: B PTS: 1 DIF: 2 REF: Sec ANS: D PTS: 1 DIF: 2 REF: Sec ANS: A PTS: 1 DIF: 2 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: D PTS: 1 DIF: 2 REF: Sec ANS: E PTS: 1 DIF: 2 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: D PTS: 1 DIF: 2 REF: Sec ANS: A PTS: 1 DIF: 2 REF: Sec ANS: D PTS: 1 DIF: 4 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 2 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 4 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 3 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 3 REF: Sec

14 37. ANS: D PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 4 REF: Sec ANS: D PTS: 1 DIF: 2 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 3 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: A PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: E PTS: 1 DIF: 2 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: A PTS: 1 DIF: 5 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 4 REF: Sec ANS: A PTS: 1 DIF: 4 REF: Sec ANS: B PTS: 1 DIF: 4 REF: Sec ANS: C PTS: 1 DIF: 1 REF: Sec ANS: E PTS: 1 DIF: 1 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 4 REF: Sec ANS: D PTS: 1 DIF: 4 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: A PTS: 1 DIF: 4 REF: Sec ANS: A PTS: 1 DIF: 2 REF: Sec ANS: D PTS: 1 DIF: 1 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 1 REF: Sec ANS: E PTS: 1 DIF: 1 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 3 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: D PTS: 1 DIF: 1 REF: Sec

15 82. ANS: D PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 4 REF: Sec ANS: E PTS: 1 DIF: 2 REF: Sec ANS: B PTS: 1 DIF: 2 REF: Sec ANS: D PTS: 1 DIF: 2 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 4 REF: Sec ANS: C PTS: 1 DIF: 4 REF: Sec ANS: A PTS: 1 DIF: 5 REF: Sec ANS: C PTS: 1 DIF: 5 REF: Sec ANS: A PTS: 1 DIF: 5 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 4 REF: Sec ANS: C PTS: 1 DIF: 4 REF: Sec ANS: B PTS: 1 DIF: 4 REF: Sec ANS: D PTS: 1 DIF: 2 REF: Sec ANS: B PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: E PTS: 1 DIF: 1 REF: Sec ANS: E PTS: 1 DIF: 1 REF: Sec ANS: A PTS: 1 DIF: 2 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 4 REF: Sec ANS: A PTS: 1 DIF: 4 REF: Sec ANS: B PTS: 1 DIF: 4 REF: Sec ANS: A PTS: 1 DIF: 2 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: B PTS: 1 DIF: 2 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 2 REF: Sec ANS: D PTS: 1 DIF: 2 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: B PTS: 1 DIF: 4 REF: Sec ANS: E PTS: 1 DIF: 4 REF: Sec ANS: A PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 4 REF: Sec

16 127. ANS: D PTS: 1 DIF: 4 REF: Sec ANS: D PTS: 1 DIF: 1 REF: Sec ANS: A PTS: 1 DIF: 4 REF: Sec ANS: B PTS: 1 DIF: 2 REF: Sec ANS: A PTS: 1 DIF: 4 REF: Sec ANS: D PTS: 1 DIF: 4 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec ANS: A PTS: 1 DIF: 4 REF: Sec ANS: C PTS: 1 DIF: 2 REF: Sec ANS: B PTS: 1 DIF: 3 REF: Sec ANS: C PTS: 1 DIF: 4 REF: Sec ANS: D PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 4 REF: Sec ANS: A PTS: 1 DIF: 2 REF: Sec ANS: D PTS: 1 DIF: 4 REF: Sec ANS: A PTS: 1 DIF: 4 REF: Sec ANS: B PTS: 1 DIF: 4 REF: Sec ANS: C PTS: 1 DIF: 3 REF: Sec ANS: E PTS: 1 DIF: 3 REF: Sec. 4.6 COMPLETION 146. ANS: water PTS: 1 DIF: 1 REF: Sec ANS: PTS: 1 DIF: 4 REF: Sec ANS: PTS: 1 DIF: 1 REF: Sec ANS: 1.19 PTS: 1 DIF: 3 REF: Sec ANS: 2.28 PTS: 1 DIF: 3 REF: Sec ANS: 39.0 PTS: 1 DIF: 3 REF: Sec ANS: 0.29 PTS: 1 DIF: 3 REF: Sec ANS: 2.75 PTS: 1 DIF: 3 REF: Sec

17 154. ANS: 9.6 PTS: 1 DIF: 3 REF: Sec ANS: 1.35 PTS: 1 DIF: 3 REF: Sec ANS: PTS: 1 DIF: 4 REF: Sec ANS: PTS: 1 DIF: 3 REF: Sec