99年 - 99 淡江大學轉學考普通化學#53564

科目：轉學考-普通化學 | 年份：99年 | 選擇題數：0 | 申論題數：5

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所屬科目：轉學考-普通化學

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申論題 (5)

1(a) Draw the Lewis structure with resonance structures for azide anion, N₃^-Indicate the value for the formal charge on each atom.

(b) Draw the stereo-structure for the compound IF₄⁺

2(a) Draw the molecular orbital energy level diagram of N₂ molecule.

(b) Draw Lewis structures of the following ions, PtCI₆^2-，NO₃^-，and CIO₄^-. Name the type of hybrid valence orbital and draw an orbital diagram for the hybrid orbital for the center atom.

3(a) Describe the first law, second law, and third law of thermodynamics in words of q, w, △S, △G, △E, and △H.

(b) Write the rate law for a first order and a second order reaction. What is the unit of first order reaction rate constant?

4(a) Using the acetic acid(x g), sodium acetate(y g), and water(z mL) to prepare a buffer solution of pH 4.8. The acidity of acetic acid, K_a, is 1.8 x 10^-5

(b) Write the equilibrium chemical reaction of methanol with K₂Cr₂O₇ in acidic solution.

5(a) Draw the condensed structural formulas for the following compounds: methyl te-butyl ether, isopropyl alcohol, acetaldehyde, polyester, nylon.

(b) Draw and name all the possible structural isomers of organic compounds.