课程名称︰ 分析化学乙下 课程性质︰ 课程教师︰ 刘春樱 开课学院： 理学院 开课系所︰ 化学系 考试日期（年月日）︰ 2008/3/5 考试时限（分钟）： 1 hr 30 min 是否需发放奖励金： 是 （如未明确表示，则不予发放） 试题 : 1. Explain the following terms: (16%) (a-d, 3% for each) a) chromophore b) monochromator c) fluorophore d) chemiluminescence e) Franck-Condon principle (4%) 2. What is the relationship between absorbance and transmittance? Why is there a logarithmic relation between transmittance and concentration? (12%) 3. Identify factors that cause the Beer's law relationship to departure from linearity. (6%) 4. The following figures shows the typical ultraviolet absorption spectra of the compound 1,2,4,5-tetrazine. Give the proper choice for each spectrum (a), (b), (c) in which corresponding condition (i) aqueous solution, (ii) hexane solution, (iii) vapor. (6%) 5. Give the essential part of the apparatus for luminescence experiment. (10%) 6. When are isosbestic points observed and why? (10%) 7. Explain each term in the following figure to state "What happens to absorbed energy?" (30%) * To see Figure 18-13 at p.390 in the textbook. **Textbook: Daniel C. Harris. 2007. Quantitative Analytical Chemistry, 7th Edition, W. H. Freeman and Company. 8. The λ0 transitions in the following figure do not exactly overlap. Give the reason. (10%) * To see Figure 18-21 at p.395 in the textbook. **Textbook: Daniel C. Harris. 2007. Quantitative Analytical Chemistry, 7th Edition, W. H. Freeman and Company. --

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