1. When solid barium phosphate is equilibrium with its ions, the ratio of barium ions to phosphate ions would be: a. 1:1 b. 2:3 c. 3:2 d. 2:1 2. Which of the following can act as a Bronsted-Lowry acid or base in water? a. HCO3(aq) c. Hiiwa b. OHtert d. NH2 (aa) 3. In a saturated solution of ammonium carbonate, the concentration of ammonium ions is 13.1 mol/L. What is the KSp of ammonium carbonate? a. 4.50103 b. 2.25103 c. 343 d. 1.12103 4. The Ka of H3PO4 is 7.1103. What is the Kb of its conjugate base H2PO4? a. 7.11011 c. 1.41012 b. 1.41012 d. 7.11011 5. In the following reaction, what are the two Bronsted-Lowry acids? a. NH3 and HCl NH3(aq)+HCl(aq)NH4(aq)++Cl(aq) b. NH3 and NH4 * c. HCl and Cl d. HCl and NH4 " 6. For the equilibrium system below, which of the following would increase the concentration of H2O(g) ? a. Increased temperature C(s)+H2O(g)+131kjCO(g)+H2(g) b. Decreased pressure c. Decreased [CO] d. Decreased container volume 7. For the equilibrium system below, which of the following would decrease the concentration of PCl3(g) ? PCl3(g)+Cl2(g)PCl5(g)+45kJ a. Increased temperature c. Increased [PCl5] b. Decreased pressure d. Increased [Cl2] 8. The Ksp expression for copper (Ii) sulfate is: a. [Cu2+][SO42] b. [Cu2+]2[SO42]2 c. [Cu2+]2[SO42] d. [CuSO4]