課程名稱︰普通化學丙
課程性質︰必修
課程教師︰張大釗
開課學院：醫學院
開課系所︰藥學 醫技
考試日期（年月日）︰２００７ Ｎｏｖｅｍｂｅｒ ２３
考試時限（分鐘）：１０：００～１２：００
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
1. (a) Which experiment gives the first direct evidence to illustrate that
electrons in atom have quantized energies?
(b) Explain Heisenberg uncertainty priciple? (8)
(a)____________________________________________________________________
(b)____________________________________________________________________
2. (a) What is the e-configuration for the most stable ion for S, Cl,K and
Ca.
(b) Order their ionic size. (8)
(a)____________________________________________________________________
(b)____________________________________________________________________
3. A sodium-vapor street lamp emits yellow light at wavelength 589 nm. How
much energy is released per mole of sodium atoms? (6)
4. Einstein was awarded the Nobel Prize in 1921 by his analysis of the
Photoelectric effect, 1/2 mv^2 = hν - hν0 = -eV, where ν=c/λ. Here
assuming the incident wavelength on a surface of Na and the corresponding
emitted electrons of the voltage are given as A and volts(V):(3125A,2.128V)
,(4339A,1.025V),(3650A,1.595V),(4047A,1.215V) and (5461A,0.467V)
(a) What is the minimum frequency required to emit an electron of Na?
(b) List two important issues of this work to the modern physics
(1eV=1.6*10^-19 J) (10)
5. (a) Draw all the possible Lewis structures of CNO- and
(b) determine which one is the most probable one with your justification.
(c) What kinds of experimental results can be used to test your prediction?
(8)
6. (a) Calculate the bond order of O2, O2-, O2+ .
(b) Which has the strongest bond?
(c) Which of them are paramagnetic? (8)
7. Give the hybridization and predict the structure of each molecules or ions:
IF2+, ClF3, XeF4. How do you erify your prediction? (8)
8. (a) Give the hybrid sp, sp2, sp3 for each carbon atom of C2H4 and C3H4.
(b) Are all four hydrogen atoms of each molecule in the same plane?Why? (6)
9. The enthalpy of sublimation of Li(s), the ionization energy of Li(g),the
bond energy of F2(g) and the energy of electron affinity of F(g) are 161,
520, 77 and -328 kJ/mol, respectively. The lattice energy of LiF(s) is
-1047 kJ/mol. Calculate the overall reaction of Li(s) + 1/2 F2(g) → LiF(s)
(8)
10. Please list three important results from solving the problem of "a
particle in a box" by using Schrodinger wave equation.(10)
11. Name each of following organic compounds. (12)
( 我不會畫圖...給命名後的名字 )
(a) 1-methyl-2-propylcyclobutane
(b) 4-tert-butylheptane
(c) 1-ethyl-3-methylcyclohexane
12. An unknown organic compound of formula C7H9ONBr2
(a) Please calculate the degree of unsaturation of this compound and
(b) describe the possible structure for this compound. (8)
13. (a) Draw the Lewis structure of carbon monoxide.
(b) Does it follow the octet rule?
(c) Calculate the formal charge of each atom.
(d) Give the effective electron pairs for each atom based on VSEPR and
the hybridization to describe its molecular structure.
(e) Use MO model to predict the bond order and megnetism. (20)
14. Quantum mechanical model provides the possible energy levels (HΨ = EΨ)
and the probability of the electron in the orbital (∫Ψ*Ψdx). (30)
Use MO-LCAO method to calculate resonance energy and electron density of
the ground state and first excited state of O3 molecule (Oa=Ob－Oc)by
using variation method. Note that there are two delocalized π-electrons.
(有一段運算符號打不出來...如果有修老師的課應該都會說到...SORRY!)
(a) Only considering the π-electrons,how many terms shorld be involved in
H and how many wave functions are involved?
(b) How do you obtain secular equation to calculate the resonance energy.
(c) Calculate the total energy of π-electrons and draw energy diagram.
(d) According to your energy diagram, what is the bond order of ground
state and what is the bond order of its first excited state.
(e) Derive the wave function.
(f) Calculate electron density of the ground state and first excited state
of O3 molecule.
終於..........................................................
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