94年 - 94 淡江大學轉學考普通化學#56053

科目：轉學考-普通化學 | 年份：94年 | 選擇題數：0 | 申論題數：16

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所屬科目：轉學考-普通化學

選擇題 (0)

申論題 (16)

1 • Write a balanced ionic equation to represent the oxidation of iodide ion by permanganate ion in basic solution to yield manganese (IV) oxide. (10%)

2. Calculate the density of ammonia (NH₃) in grams per liter at 752 mmllg and 55°C. (10%)

(a) What is the electron configuration of the element?

(b) How should the element be classified?

(c) Are the atoms of this element diamagnetic or paramagnetic? (10%)

(a) Which atom should have a smaller first ionization energy: oxygen or sulfur?

(b) Which atom should have a higher second ionization energy: lithium or beryllium? Give your reason. (10%)

(a) Draw the most likely Lewis structure for the compound,

(b) Indicate the hybridization orbitals and formal charge for carbon and oxygen atom in this molecule. (10%)

(a) O₃

(b) IF₃

(c) I₃^-(l0%)

7. Write the ground-state electron configuration for 02 by molecular orbital theory and show that it is paramagnetic. (10%)

8. At 25°C, the vapor pressure of pure water is 23.76 nimllg and that of a dilute aqueous urea solution is 22.98 mmllg. Estimate the concentration in molality (m) of the solution. Urea is a nonvolatile compound. (10%)

9. Describe the first law, the second law, and the third law of thermodynamics. (10%)

【已刪除】10.Calculate the pH of a buffer system containing 0.10 M CH₃COOII and 0.18 M CH₃COONa. 10%)