2. Chemical Equilibrium Chapter 18 Review JEOPARDY

3. KeepingYourBalance Express Yourself Under Stress Stressed Out Soluble Soluble Chance of Precipitation Final Jeopardy! #1 #2 Chance of Precipitation Final Jeopardy! #1 #2 100 200 300 400 500 EquilibriumMixture 100 200 300 400 500

4. Keeping Your Balance 100 The statement that, at a given temperature, a chemical system may reach a state in which a particular ratio of reactant and product concentrations has a constant value. A: What is the Law of Chemical Equilibrium? S2C06 Jeopardy Review

5. Keeping Your Balance 200 A: What is the equibrium constant? The name of K eq. S2C06 Jeopardy Review

6. Keeping Your Balance 300 A: Who are Cato Guldberg and Peter Waage? Norwegian chemists who proposed the Law of Chemical Equilibrium in 1864. S2C06 Jeopardy Review

7. Keeping Your Balance 400 A: What is > 1? The value of K eq in equilibria at which the concentration of the products is greater than the concentrations of the reactants. S2C06 Jeopardy Review

8. Keeping Your Balance 500 A: What is K eq = [NH 3 ] 2 /[N 2 ] 1 [H 2 ] 3 ? The equilibrium constant expression for the following equilibrium: S2C06 Jeopardy Review 1N 2 (g) 3H 2(g) +2NH 3(g)

9. Express Yourself 100 A: What is heterogeneous? S2C06 Jeopardy Review The type of equilibrium the following is: 1CaCO 3 (s) 1CaO (s) +1CO 2 (g)

10. Express Yourself 200 A: What is heterogeneous ? S2C06 Jeopardy Review The type of equilibrium the following is: 5F 2 (g) 1SF 4 (g) 2S (s) +1SF 6 (g) +

11. Express Yourself 300 A: What is K eq = [H 2 O] 4 /[H 2 ] 4 ? The equilibrium constant expression for the following equilibrium: S2C06 Jeopardy Review 4H 2 (g) 3Fe (s) 1Fe 3 O 4 (s) +4H 2 O (g) +

12. DAILY DOUBLE!

13. Express Yourself 400 A: What is K eq = [N 2 ] 3 [H 2 O] 4 /[N 2 H 4 ] 2 [NO 2 ] 2 ? The equilibrium constant expression for the following equilibrium: S2C06 Jeopardy Review 2NO 2 (g) 3N 2 (g) 2N 2 H 4 (g) +4H 2 O (g) +

14. Express Yourself 500 A: What is 4 ? The value of K eq for the following equilibrium, when the [SO 3 ] = 1 M, the [SO 2 ] = 2 M, and the [O 2 ] = 1 M. S2C06 Jeopardy Review 2SO 3 (g) 1O 2 (g) +2SO 2 (g)

15. DAILY DOUBLE!

16. Under Stress 100 A: What is right? S2C06 Jeopardy Review For the following equilibrium, for which the ΔH 0 of the forward reaction is -206.5 kJ, the direction the equilibrium shifts in response to an increase in concentration of Carbon monoxide. 3H 2 (g) 1CH 4(g) 1CO (g) + 1H 2 O (g) +

17. Under Stress 200 A: What is right? S2C06 Jeopardy Review For the following equilibrium, for which the ΔH 0 of the forward reaction is -206.5 kJ, the direction the equilibrium shifts in response to the addition of a dessicant which decreases the concentration of water. 3H 2 (g) 1CH 4(g) 1CO (g) + 1H 2 O (g) +

18. Under Stress 300 A: What is left? S2C06 Jeopardy Review For the following equilibrium, for which the ΔH 0 of the forward reaction is -206.5 kJ, the direction the equilibrium shifts in response to an increase in temperature. 3H 2 (g) 1CH 4(g) 1CO (g) + 1H 2 O (g) +

19. Under Stress 400 A: What is right? S2C06 Jeopardy Review For the following equilibrium, for which the ΔH 0 of the forward reaction is -206.5 kJ, the direction the equilibrium shifts in response to an increase in pressure. 3H 2 (g) 1CH 4(g) 1CO (g) + 1H 2 O (g) +

20. Under Stress 500 A: What is left ? S2C06 Jeopardy Review For the following equilibrium, for which the ΔH 0 of the forward reaction is -206.5 kJ, the direction the equilibrium shifts in response to an increase in volume. 3H 2 (g) 1CH 4(g) 1CO (g) + 1H 2 O (g) +

21. Stressed Out 100 A: What is left? S2C06 Jeopardy Review For the following equilibrium, which has an endothermic forward reaction, the direction the equilibrium shifts in response to an increase in concentration of water. 4Cl - (aq) 1CoCl 4 2- (aq) +6H 2 O (l) 1Co(H 2 O) 6 2+ (aq) + Hexahydrate Co 2+ ion (pink)chloride ionTetrachlorocobaltate ion (blue)

22. Stressed Out 200 A: What is blue? S2C06 Jeopardy Review For the following equilibrium, which has an endothermic forward reaction, the color the purple solution changes to with the addition of concentrated HCl. 4Cl - (aq) 1CoCl 4 2- (aq) +6H 2 O (l) 1Co(H 2 O) 6 2+ (aq) + Hexahydrate Co 2+ ion (pink)chloride ionTetrachlorocobaltate ion (blue)

23. Stressed Out 300 A: What is blue? For the following equilibrium, which has an endothermic forward reaction, the color the purple solution should change to with the addition of a dessicant which lowers the concentration of water. S2C06 Jeopardy Review 4Cl - (aq) 1CoCl 4 2- (aq) +6H 2 O (l) 1Co(H 2 O) 6 2+ (aq) + Hexahydrate Co 2+ ion (pink)chloride ionTetrachlorocobaltate ion (blue)

24. DAILY DOUBLE!

25. Stressed Out 400 A: What is right? For the following equilibrium, which has an endothermic forward reaction, the direction the equilibrium shifts in response to an increase in temperature. S2C06 Jeopardy Review 4Cl - (aq) 1CoCl 4 2- (aq) +6H 2 O (l) 1Co(H 2 O) 6 2+ (aq) + Hexahydrate Co 2+ ion (pink)chloride ionTetrachlorocobaltate ion (blue)

26. Stressed Out 500 A: What is pink? For the following equilibrium, which has an endothermic forward reaction, the color the purple solution changes to in response to decreased temperature. S2C06 Jeopardy Review 4Cl - (aq) 1CoCl 4 2- (aq) +6H 2 O (l) 1Co(H 2 O) 6 2+ (aq) + Hexahydrate Co 2+ ion (pink)chloride ionTetrachlorocobaltate ion (blue)

27. Soluble 100 A: What is Barium carbonate? Of Barium carbonate, Copper(II) carbonate, or Zinc carbonate, the most soluble at 298 K. S2C06 Jeopardy Review

28. Soluble 200 A: What is Calcium fluoride? Of Calcium fluoride, Lead(II) fluoride, or Lead(II) iodide, the least soluble in water at 298 K. S2C06 Jeopardy Review

29. Soluble 300 A: What is 1.1 x 10 -5 M? S2C06 Jeopardy Review The solubility of Barium chromate in water at 298 K.

30. Soluble 400 A: What is 2.3 x 10 -6 M? The [Fe 2+ ] in a saturated solution of Iron(II) hydroxide at equilibrium. S2C06 Jeopardy Review

31. Soluble 500 A: What is 3.0 x 10 -10 M? The [OH-] in a saturated solution of Iron(III) hydroxide at equilibrium. S2C06 Jeopardy Review

32. Equilibrium Mixture 100 A: What is NH 3 ? For the reaction described by the graph below, the product of the forward reaction. S2C06 Jeopardy Review

33. DAILY DOUBLE!

34. Equilibrium Mixture 200 A: What is Magnesium carbonate? The name of the precipitate that will form if 100 mL of 0.100 M MgCl 2 solution is mixed with 100 mL of 0.100 M Na 2 CO 3 solution. S2C06 Jeopardy Review

35. Equilibrium Mixture 300 A: Who is Henry-Louis Le Châtelier? French chemist who proposed that if a stress is applied to a system at equilibrium, the system will shift in the direction that relieves the stress. S2C06 Jeopardy Review

36. Equilibrium Mixture 400 A: What is the solubility product constant? The name of K sp. S2C06 Jeopardy Review

37. Equilibrium Mixture 500 A: What is greater than the K sp value? What the value of Q sp is when a precipitate forms. S2C06 Jeopardy Review

38. Final Jeopardy Chance of Precipitation Whether or not a precipitate will form if 100 mL of 0.010 M AgNO 3 is added to 100 mL of 0.010 M NaCl: A : What is yes (Q sp = 2.5 x 10 -5 )?

39. Final Jeopardy Chance of Precipitation Whether or not a precipitate will form if 100 mL of 0.010 M Ca(NO 3 ) 2 is added to 100 mL of 0.010 M NaOH: A : What is no (Q sp = 1.2 x 10 -7 )?