Question

Can all questions be answered please 39-49

39. The vapor pressure of pure water at 25 °C is 23.8 torr. What is the vapor pressure (torr) of water above a solution prepared by dissolving 18.0 g of glucose (a nonelectrolyte, MW- 180.0 g mol) in 95.0 g of water? A) 24.3 B)234 C0451 D) 0.443 E) 23.8 40. What is the freezing point (C) of a solution prepared by dissolving 11.3 g of(formula weight 164 g/mol) in 115 g of water? The molal freezing point depression constant for water is 1.86"C/m. A)-3.34 B) C)3.34 E) 0.00 1. The oxidation state of tellurium in TeO,CI, is A) +2 B) -2 C) E) +6 F) -6 42. In the reaction Zn+H,SO, à ZnSO,H, which, if any, element is oxidized? A) zinc B) hydrogen E) none are oxidized C) sulfur D) oxygen 43. Which of these will be the strongest reducing agent? A) AgíCN) B) Bio ?) ???. D) Co E) Mn End-0.31 v E +032 V E -2.87 V E +1.84 V 44. From what single quantity can one determine whether a reaction is spontancous? C) ?? E) AS AG 45. Plutonium-242 decays to Uranium-238 by A)alpha radiation B) gamma radiation C) beta radiation D) positron emission E) electron capture 46. In the following voltaie cell, to which electrode do the electrons flow? A) AP ?) ?? C) A D) Ca 47. Which of the following processes is not spontancous? A) Rusting of a bike chain B) Water boiling at 80°C C) Two gases mixing D) NaCI dissolving in water E)N,O, decomposing to 2NO, 48. In the reaction CuAgNO CuNOj)aAg identify the oxidizing agent. B) AgNO, D) Ag A) Cu CU(NO) C) 49. 1 Ta decays by electron capture. What is the product of this reaction? SLu

Answer 1