[試題] 100上 林萬寅 普通化學甲上 期中考

[yp7464 (YP)]

課程名稱︰普通化學甲上
課程性質︰必修
課程教師︰林萬寅
開課學院：理學院
開課系所︰化工系
考試日期（年月日）︰2011/11/11
考試時限（分鐘）：110 min
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試題 :

NOTE:procedures for all calculations must be given;physical contants:
     h=6.625*10^-34 Js
     c=3.00*10^8 m*s^-1
     1 eV =1.60*10^-19 J

1.Answer the following questions for ICl3
  (A)Give its systematic name. 2%
  (B)Draw its Lewis structure. 4%
  (C)Give the formal charges of each atom. 4%
  (D)Draw its molecular shape. 3%
  (E)Give the oxidation numbers of each atom. 2%

2.For the ground state Cu(I),answer the following questions.(Z=29 for Cu)
  (A)Write the electron configuration for Cu(I). 3%
  (B)Give the total number of electrons in Cu(I) that have n=3  3%
  (C)Give the total number of electrons in Cu(I) that have l=1  3%
  (D)Give the total number of electrons in Cu(I) that have ml=0 3%
  (E)Give the total number of electrons in Cu(I) that have ms=-1/2  3%
 　　*(D)選項之ml的l與(E)選項ms之s為下標。

3.The photoelectron spectrum of Ne shows three peaks at kinetic energies
  of 360.0,1181.8,and 1208.6 eV,respectively.The photon energy used in this
  experiment is 1230.2 eV.Answer the following questions.
  (A)Describe the principle of photoelectron spectroscopy(PS). 4%
  (B)What are the two types of electronmagnetic radiation commonly used in
     PS? 4%
  (C)Calculate the ionization energy corresponding to each of the three
     peaks. 6%
  (D)What is the Koopmans's approximation? 3%
  (E)Estimate the effective nuclear charge (Zeff) for 2p electrons in Ne using
     εn= -(Zeff/n)^2 *Ry ,Ry=13.6 eV  4%
     *Zeff的eff與εn的n為下標。
  (F)Use Slater's rule to estimate Zeff for 2p electrons in Ne. 4%

4.Write the chemical formula for the following compounds. 8%
  (A)cobalt(III)hypochlorite
  (B)calcium phosphate
  (C)tetraphosphorus decaoxide
  (D)hydrazine

5.The spectral series (n2 －> n1 ; n2-n1=1,2,3... ) for the emission of a
  certain single-electron ion (M^(Z-1)) is given below.The wavenumbers of
  the first (A) and the highest-energy (X) lines are also given.Knowing
  that the energy of M^(Z-1) is given by:En=-(Z/n)^2*2.18*10^-18 J.Answer
  the following questions.

    A                       　 X               Line  Wavenumber/cm^-1
    |       |    |   | || …… |  (譜線圖)    -------------------------
 ---------------------------------               A        47950
    　　　　　cm^-1                              X       109600
　　50000       →       100000

   *n1的1與n2的2為下標;M^(Z-1)的Z-1為上標。
  (A)Give an expression for the energy of line A in terms of Z and n1. 3%
  (B)Find the value of n1. 3%
  (C)What is the atomic number Z of the ion? 3%
  (D)Calculate the ionization energy for the ground-state M^(Z-1). 3%

6.Answer the following questions.
  (A)For a cubic particle-in-a-box with edge length L,give the possible
     states,denoted as (nx,ny,nz),with the energy 6h^2/(8m(L^2)).Also give
     the degeneracy and positions of nodes. 8%
  (B)Dalton's atomic theory contained five postulates.According to modern
     chemistry, four of those postulates require amendment or extension.
     List the modifications for the four postulates. 8%
  (C)Describe the meaning of the following: 6%
     (i)blackbody radiation
     (ii)photoelectric effect
  (D)Give the names of three laws contained in the law of chemical
     combination. 3%

  ＊考試可攜帶工程用計算機及電子辭典。
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