110年 - 110 國立臺灣大學_碩士班招生考試_部分系所:(共同科目)分析化學(A)#100459

1. The dissolution of carbon dioxide in water:
If the total carbon dioxide concentration is 2.2 mf, what are the concentrations (in mM units) of [HCO₃], at pH 4.0, 6.4, 8.4, 10.3 and 12.5? Please give a quick estimation and explain why. (20%)

2. If the above carbonate system exists in a high saline medium (for example, seawater), the apparent dissolution constants will shift to pk₁'=6.0 and pK₂ =9.2. Try to use concepts related to ionic strength and activity to explain the so-calied "pKa-shifting" phenomenon. (20%)

(a) partition coefficient k'

(b) retention time ta

(c) flow speed u and migration speed um

(d) height equivalent of theoretical plate (HETP)

4. What is ICP-MASS? Brief describe its principle (you may draw diagrams to make it clear). Give some examples to show its application to environmental or clinic chemistry. (20%)

5. Mercury is toxic element. The determination of mercury is largely depending upon a technique called "cold-vapor atomic absorption spectrometry". Use illustrations to describe this technique. (20%)

6. Testing drivers' alcohol is an obligation should any traffic accident take place. What is the method to measure alcohol in driver's breath? If the driver refuses to take breath test, how can we measure alcohol in his blood? (20%)

110年 - 110 國立臺灣大學_碩士班招生考試_部分系所:(共同科目)分析化學(A)#100459

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