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Study Resources (Chemistry)

15.4  Short Answer Questions 1) What happens to the concentration of reactants and products during a chemical reaction? 2) What is the difference between average reaction rate and instantaneous reaction rate? 3) Explain how the order of a reaction can be determined. 4) Define half-life. 5) Define activation energy. .
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41) Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature.  Determine the equilibrium concentration of CO2(g). NH2COONH4(s) ? 2 NH3(g) + CO2(g)Kc = 1.58 × 10-8 [NH3]eq = 2.7 × 10-3 M A) 0.053 M B) 4.3 × 10-11 M C) 2.2 × 10-3 M D) 5.9 × 10-6 M E) 0.022 M 42).
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16.3  Matching Questions Match the following. A) reaction favors formation of more products B) reaction will favor formation of reactants C) reverse reaction is favored D) reaction does not strongly favor reactants or products E) reaction is at equilibrium F) reaction has a larger amount of products than reactants 1) K << 1 Diff: 1    Var: 1    Page Ref:.
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71) Stalactites and stalagmites form as ________ precipitates out of the water evaporating in underground caves. A) hydrochloric acid B) sodium hydroxide C) sodium chloride D) calcium carbonate E) sodium bicarbonate 72) Give the equation for an unsaturated solution in comparing Q with Ksp. A) Q > Ksp B) Q < Ksp C) Q = Ksp D).
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17.2  Algorithmic Questions 1) The stomach excretes ________ to kill microorganisms and to activate enzymes that break down food. A) CH3COOH B) HBr C) LiHCO3 D) HCl E) HNO3 2) Identify the acid that is in car batteries. A) H2SO4 B) HNO3 C) H2CO3 D) CH3COOH E) HCl 3) Identify the acid that is in vinegar. A) H2SO4 B) HNO3 C) Li2CO3 D) CH3COOH E) HF 4) Identify the.
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51) The following reaction is exothermic.  Which change will shift the equilibrium to the left? 2 SO2(g) + O2(g) ? 2 SO3(g) A) raising the temperature B) adding SO3 C) removing O2 D) all of the above E) none of the above 52) The following reaction is exothermic.  Which change will shift the equilibrium to the left? 2.
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61) Consider the following reaction at equilibrium.  What effect will increasing the pressure of the reaction mixture have on the system? 2 H2S(g) + 3 O2(g) ? 2 H2O(g) + 2 SO2(g) A) The reaction will shift to the right in the direction of products. B) No effect will be observed. C) The reaction.
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41) Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature.  Determine the equilibrium concentration of SO3(g). 2 SO2(g) + O2(g) ? 2 SO3(g) Kc = 1.7 × 108 [SO2]eq = 0.0034 M[O2]eq = 0.0018 M A) 1.9 M B) 1.0 × 103 M C) 0.53 M D) 9.6 × 10-4 M E) 0.73.
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17.3  Matching Questions Match the following. A) proton donor B) electron pair acceptor C) electron pair donor D) produces protons in aqueous solution E) produces hydroxide ions in aqueous solution F) proton acceptor 1) Arrhenius acid Diff: 1    Var: 1    Page Ref: 17.3 Global:  G2 2) Arrhenius base Diff: 1    Var: 1    Page Ref: 17.3 Global:  G2 3) Brønsted-Lowry acid Diff: 1    Var: 1    Page.
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11) Give the characteristics of a strong acid. A) ionizes completely in aqueous solutions B) has equilibrium far to the right C) has a polar bond D) has a weaker bond to hydrogen E) all of the above 12) The stronger the acid, then which of the following is true? A) The stronger the conjugate acid. B) The.
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  16.1  Multiple Choice Questions 1) Equilibrium in which rate of the forward reaction equals the rate of the reverse reaction is A) dynamic. B) temperature independent. C) concentration independent. D) volume independent. E) impossible. 2) Chemical equilibrium is the result of A) all of the reactants being converted into products. B)  stoppage of further reaction. C) formation of products.
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  18.1  Multiple Choice Questions 1) Animals will lick up ethylene glycol (antifreeze) due to its sweet taste.  The antidote for ethylene glycol poisoning is the administration of A) ethyl alcohol ( alcoholic drinks). B) isopropyl alcohol (rubbing alcohol). C) mineral oil (laxative). D) vinegar. E) sodium bicarbonate (baking soda). 2) An important buffer in the blood.
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6) Define the frequency factor. 7) Explain what the exponential factor in the Arrhenius equation represents. 8) Is the activation energy for a forward reaction the same as the activation energy for the reverse of the same reaction?  Use a sketch of a reaction energy diagram. 9) What is a catalyst and what.
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15.3  Matching Questions Match the following. A) frequency factor B) half-life C) rate constant D) reaction order E) activation energy 1) k Diff: 1    Var: 1    Page Ref: 15.4 Global:  G2 2) n, in Rate = k[A]n Diff: 1    Var: 1    Page Ref: 15.4 Global:  G2 3) t1/2 Diff: 1    Var: 1    Page Ref: 15.5 Global:  G2 4) Ea Diff: 1    Var: 1    Page Ref: 15.6 Global: .
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17.4  Short Answer Questions 1) What does the term amphoteric mean? 2) Describe the relationship between molecular structure and acid strength.  3) What is the difference between a strong and weak acid? 4) What is the autoionization of water? 5) Do both protons ionize instantaneously from a diprotic acid such as H2CO3?  Explain your.
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11) Which of the following is a Br∅nsted-Lowry base? A) CH4 B) HCN C) NH3 D) I2 E) None of the above are Br∅nsted-Lowry bases. 12) Identify the strongest acid. A) HIO4 B) HIO3 C) HIO2 D) HIO E) Not enough information is given. 13) Identify the diprotic acid. A) HNO3 B) HBr C) CH3COOH D) H2SO4 E) HClO4 14) Identify the triprotic acid. A).
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  17.1  Multiple Choice Questions 1) ________ is found in carbonated beverages due to the reaction of carbon dioxide with water. A) CH3COOH B) H2CO3 C) HCOOH D) H3C6H5O7 E) CH3CH2COOH 2) ________ is the active component in vinegar. A) CH3COOH B) H2CO3 C) HCOOH D) H3C6H5O7 E) CH3CH2COOH 3) An aqueous solution of ammonia is found to be basic. This observation can be.
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16.4  Short Answer Questions 1) Explain dynamic equilibrium.  Use the generic reaction A(g) ? B(g) to explain. 2) Why is an equilibrium constant unitless? 3) Can the Kp and Kc for a reaction ever have the same value?  Why or why not? 4) Why aren't solids or liquids included in an equilibrium expression? 5) How.
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