課程名稱︰普通化學甲上
課程性質︰
課程教師︰彭旭明
開課學院：理學院
開課系所︰
考試日期（年月日）︰2009/11/13
考試時限（分鐘）：120min
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
1.The follow aqueous solutions are common laboratory acids. What are their
names? (a)HCl(aq) (b)H2SO4(aq) (c)HNO3(aq) (d)CH3COOH(aq) (e)H3PO4(aq).
2.Name each of the following compounds in English:(a)Na2SO3 (b)Fe2O3
(c)Mg(OH)2 (d)RuCl2 (e)NiSO4-6H2O (f)Hg(NO3)2 (g)Ni(ClO4)2 (h)Ca(OCl)2
(i)Ca3(PO4)2 (j)KCN
3.Dolomite is a mixture carbonate of calcium and magnesium. Calcium and
magnesium carbonates both decompose on heating to produce the metal oxides
(MgO and CaO)and carbon dioxide(CO2). If 4.84g of residue consisting of
MgO and CaO remains when 9.66g of dolomite is heated until decomposition
is complete, what percentage by mass of the original sample was MgCO3?
4.A mixture of 4.94g of 85.0% pure phosphine, PH3, and 0.110kg of CuSO4-5H2O
is placed in a reaction vessel. (a)Balance the chemical equation for the
reation that takes place, given the skeletal form CuSO4-5H2O(s)+PH3(g)->
Cu3P2(s)+H2SO4(aq)+H2O(l). (b)Name each reactant and product. (c)Determine
the limiting reactant. (d)Calculate the mass(in grams) of Cu3P2 produced,
given that the percentage yield of the reactant is 6.31%.
5.For a hydrogen atom in its ground state, the wavefunction is:
波函數1s=1/(pi)^0.5 >< (1/a0)^1.5 >< e^(-r/a0) a0=5.29><10^(-11)m
Calculate the ralative probability of finding the electron in the area
described. Assuming the probability of a sphere of volume is identical.
(a)in a sphere of volume 1.0x10^-3 pm^3 centered at the nucleus. (b) in a
sphere of volume 1.0x10^-3 pm^3 centered in a point 1.0x10^-11m from the
nucleus. (c)in a sphere of volume 1.0x10^-3pm^3 centered on a point 53pm
from the nucleus. (d)in a shell between two concentric spheres, one with
radius 9.95pm and the othe with radius 10.05pm. (e)in a shell between two
concentric spheres, one with radius 52.85pm and the other with radius
52.95pm.
6.(a)Sketch the shape of the boundary surfaces corresponding to 3s-, 3p-, and
3d-orbitals. (b)What's meant by a node? (c)How many radial nodes and angular
nodal surfaces does each orbital have? (d)Predict the number of nodal planes
expected for 4f-orbital.
7.For the electrons on a carbon atom in the ground state, decide which of the
following statements are true. If false, explain why. (a)Zeff(有效核電荷數)
for an electron in a 1s-orbital is the same as Zeff for an electron in a
2s-orbital. (b)Zeff for an electron in a 2s-orbital is the same as Zeff
for an electron in a 2p-orbital. (c)An electron in the 2s-orbital has the
same energy as an electron in the 2p-orbital. (d)The electrons in the
2p-orbitals have spin quantum number Ms of opposite sign. (e)The electrons
in the 2s-orbital have the same value for the quantum number Ms.
8.The energy required to bread a C-C bond in a molecule is 348kJ/mol.
(a)Calculate the maximum wavelength of the radiation which can break a C-C
bond. (b)Will visible light be able to break this bond? If not, what type
of electromagnetic radiation will be suitable?
9.Explain the Born-Meyer Equation below.
10.Write the Lewis structure of (a)nitronium ion, (b)chlorite ion (c)peroxide
ion (d)formate ion (e)azide ion
11.圖片...還不懂如何打
12.Place the following molecules or ions in order of decreasing bond length:
(a)the CO bond in CO, CO2, CO3(2-) (b)the SO bond in SO2, SO3 SO3(2-)
(c)the CN bond in HCN, CH2NH, CH3NH2. Explain your reasoning.
13.Write the Lewis structure and predict the shape of (a)OSbCl3 (b)SO2Cl2
(c)OIO2F(2-) (d)SF6 (e)PCl5 (f)NH3 (g)OCCl2 (h)NO2(+) (i)NO(+)
14.Give the example which has the following shape of the molecule or ion.
(a)Linear A-B-A (b)Bent A-B-A with angle close to 120度 (c)Bent A-B-A with
angle close 109.5度
15.(a)On the basis of the configuration of neutral molecule O2, construct the
molecular orbital of valence molecular orbitals for (1)O2(-) (2)O2(+)
(3)O2(2-). (b)for each speciesm give the expected bond order. (c)Which are
paramagnetic, if any? (d)Is the highest-energy orbital that contains an
electron sigma or pi in character?
16.Benzyne, C6H4, is a highly reactive molecule that is detected only at low
temperatures. It is related to benzene in that it has a six-membered ring of
carbon atoms; but, instead of three double bonds, the structure is normally
drawn with two double bonds and a triple bond. (a)Draw a Lewis structure of
the benzyne molecule. Indicate on the structure the hybridization at each
carbon atom. (b)On the basis of your understanding of binding, explain why
this molecule might be highly reactive.
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