Consider the following reaction: 2 H20(g) + 2 SO2(9)=2 H2S(g) + 3 02(g) A reaction mixture initially contains 2.8 M H20 and 2.6M SO2. Determine the equilibrium concentration of H2S if Kc for the reaction at this temperature is 1.3 x 10-6. Select one: a. 0.045 M b. 0.058 M c. 0.028 M d. 3.1 x 10-3 M e. 0.12 M

Consider the following reaction where K. = 7.00x10-5 at 673 K. NH4I(s) ? NH3(g) + HI(g) A reaction mixture was found to contain 5.79×10-2 moles of NH4I(s), 1.10×10-2 moles of NH3(g), and 8.37x10-3 moles of HI(g), in a 1.00 liter container. Is the reaction at equilibrium? If not, what direction must it run in order to reach equilibrium? The reaction quotient, Qc, equals || The reaction A. must run in the forward direction to reach equilibrium. B. must run in the reverse direction to reach equilibrium. C. is at equilibrium.

5. Consider the following chemical reaction: CO(g) + 2 H2(g) = CH3OH(g) CO and H2 are added to a fiask with initial concentrations of COI = 0.200 M and [H2] = 0.400 M. After reaching equilibrium, [CH3OH] = 0.1092 M. What is the value of the equilibrium constant, Kc? aniog

Under certain conditions the equilibrium constant Kc for the decomposition of PCl5(g) into PCl3(g) and Cl2(g) is 0.0211. What are the equilibrium concentrations of PCl5, PCl3 and Cl2 in a mixture that initially contained only PCl5 at a concentration of 1.00M. PCl5(g) -->  PCl3(g) + Cl2(g)