The phase diagram below is to be used for Questions 34 - 35【題組】34. The highest point to which line X
【題組】35. The change from point O to point N corresponds to(A) condensation (B) evaporation (C) freezi
34. 某有機化合物在質譜中所顯示的部分訊號如下，其中 m/z = 84 為此化合物的分子離子(molecular ion)訊號，請問此化合物最有可能的分子式為何？ (A) C4H6O2 (B) C5
37. For the system described by the figure below, which statement is CORRECT? (A) The forward reacti
38. Which of the following concentrations can change with a change in temperature?1. molality2. mola
39. Carbon monoxide is a hazardous air pollutant because it(A) reacts with oxygen to form CO2(B) cat
40. The proton NMR of a compound, C8H9ClO, has the following peaks. Which compound below best fits t
42. At a given temperature, K = 0.020 for the equilibriumPCl5(g) ⇌PCl3(g) + Cl2(g)What is K for reac
37. 以下反應何者無法用來形成六員環(6-membered ring)？(A) Robinson annulation (B) Aldol condensation (C) Dieckmann co
43. The table below lists the solubility product for compounds. Which salt is the most soluble (mol/
44. The following data were obtained for the reaction What is the order of the reaction with respect
45. Which process(es) is (are) most likely to lead to acid rain?1. pollutants from a copper smelter2
47. A compound which EI-MS spectrum is shown below, has M+ = m/z 156, M+2 = m/z 158, and m/z = 77(ba
48. Consider the following reaction, which is spontaneous at room temperature:C3H8(g) + 5O2(g) → 3CO