write the equilibrium expression (k) for the following reactions: a. CH4
changed has on the voltage of a cer h medium will 52. For a certain cell, E 1.08 V. Calculate AG if n is (The standard (a) 1 (b) 2 (c) 3 medium is 53. Calculate Eo, AGO, and K at 25 C for the reaction any, that occurs 3Mn2 aq) 2Mno. (aa) 2H20 5Mno2 (s) 4H (aq) erformed under 54. Calculate Eo, AG, and K at 25°C for the reaction queous solution 2Mno4 (aq) 4H (aq) Cl2(g) 2Mn2 (aa) 2CIO, (aq) 2H20 eous solution of 55. Calculate AGo at 25°C for each of the reactions referred to a solution of in Question 29. Assume smallest whole-number coefficients 56. Calculate AG at 25°C for each of the reactions referred to any, that occurs in Question 30. Assume smallest whole-number coefficients. performed under 57. Calculate K at 25°C for each of the reactions referred t in Question 31 58. Calculate K at 250C for each of the reactions re- n is added to liq ferred to in Question 32. Assume smallest whole coefficients. ion of potassium 59. Consider the reaction for the formation of the complex ion CuC be oxidized by Cu (s) 2Cl (aq) CuCl2 (aq) The formation constant Kf for this reaction is 3.0 x 10 (a) Write the two half-reactions that give rise to the for- be oxidized by mation of the complex ion. b) Find the standard reduction potential at 25C for tion, if any, will the reaction ed in acidic solu- 60. Use Table 17.1 to find Kf for AuCl4 (aq) at 25°C 61. Given the following information: SO2, Fest, No Ag2Cro4(s) 2Ag (aq) Cro (aa) K,p 1 x 10-12 if any, will oc- Ag (aa) e- Ag(s EO +0.799 V utions of the fol find the standard reduction potential at 25°C for the half-reaction Ag2Cro4(s) 2e 2Ag(s) Cro -(aq) 62. What is E at 25°C for the following reaction? and K aq) So, (aq) Ba BaSO4(s n the K for BaSO4 is 1.1 x 10-10 17-5 Effect of Concentration on Voltage 63. Consider a voltaic cell at 25°C in which the following reaction takes place. 3H202(aq) 6H (aq) 2Au (s) 2Aus (aq) 6H2O