Acid / base equilibrium

Part A: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. When solid aluminum hydroxide is in equilibrium with its ions, the ratio of aluminum ion to hydroxide ion is which of the following? d. a. b. c. 1:1 2:1 1:2 1:3 3:1 e. 2. Consider the equilibrium for the dissolving of ammonium bromide. NH4Bris) 2 NH4+ (aq) + Br (aq) Once equilibrium is established, which of the following would cause this reaction to favor the products more? a. b. C. Increase the total pressure. Increase the amount of NH4Br (s)- Increase the volume of the solvent. Increase the temperature of the solution. Increase the volume of the container. d. e. 3. Which of the following is not considered to be a strong acid d. a. b. nitric acid sulfuric acid hydrochloric acid phosphoric acid perchloric acid e. c. 4. Which compound is not a strong base? d. a. b. sodium hydroxide ammonium hydroxide barium hydroxide magnesium hydroxide cesium hydroxide e. C. 5. The pH of a 0.10 mol/L aqueous solution of Fe(NO3)3 is not 7.00. The equation that best accounts for this observation is: a. b. C. d. Fe3+ (aq) + 3H20 () Fe(OH)3 (aq) + 3 H+ (aq) NO3- (aq) + H2O HNO3(aq) + OH(aq) Fe(H20)63+ (aq) + H2O(I) Fe(H20)s(OH)2 (aq) + H30* (aq) Fe(H20)63+ (aq) + H20 (1) Fe(OH2)s(H30)4+ (aq) + OH(aq) HNO3(aq) + H20 (1) = H3O+ (aq) + NO3(aq) e. 6. According to the Brnsted-Lowry definition, which chemical species can function either as an acid or a base, depending on the conditions? d. H30* HCO3 NH4+ PO43- Br e