課程名稱︰普通化學丙
課程性質︰共同必修
課程教師︰共同必修
開課學院：
開課系所︰護理學系 物理治療系 職能治療系
考試日期（年月日）︰2008/11/21
考試時限（分鐘）：120分鐘
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
General Chemistry-Mid-Term II.（2008/11/21）｛4 Pages｝
答案必須寫於專用答案紙上，否則以零分計算
A. 是非題（正確畫○，錯誤畫X，每題二分，選12題作答，共24分）
1. All the isotops of element Tc are radioactive.
2. The penetrating distance in water for γ ray is larger than X ray.
3. Carbon-11 is useful in positron emission tomography(PET).
4. The aqueous solution of MgF2 is neutral in terms of acidity.
5. The pKa of H2O is 14.
6. Sulfuric acid is H2SO4.
7. Hypotonic solution are solutions having an osmolarity greater than
the sourrounding blood plasma or cells.
8. Colligative properties of solutions are properties that depend on
chemical identity of solutes.
9. Dental amalgam(mercury in silver) is an example of solutions of liquid
in solid.
10.The explosion caused by dropping Mentos into Diet Coke is a result of
reduced viscosity.
11.The acidity is
＿ ＿
＿／ ＼ ＿／ ＼＿
NC ＼＿／￣COOH > H2N ＼＿／ COOH
12.Diamond can be considered as crystalline solid.
13.Hydrophobic effect is the main factor that acconts for the folding
of protein molecules in water.
14.Phosphoric acids is classified as strong acid.
15.NaCl is a strong electrolyte.
B.單一選擇題(每題三分，選12題作答，共36分)
1.The process of sublimation is ___ and involves a(an) ___ in entropy.
(A)exothermic;increase (B)exthermic;decrease
(C)endothermic;increase (D)endothermic;decrease (E)endothermic;no
change
2.Which molecule will undergo only London dispersion forces when interacting with
other molecules of the same kind?
(A)HF (B)CH2Cl2 (C)C4H10 (D)NaCH3CO2 (E)C2H5OH
3.A pollutant that has ben measured at 450 mg per 150 kg of sample equals to
(A)3000ppm (B)3ppm (C)300ppb (D)3ppb (E)30ppm
4.Which solutin\on will has the hightest boiling point?
(A)0.1MNa2SO4 (B)0.1M glucose,C6H12O6 (C)0.1M MgCl2
(D)0.1M Al(NO3)3 (E)pure water
5.Which combination of characteristics is most likely to be associate with
molecules having strong dipole-dipole interactioms?
1.Polar band
2.Asymmetric shape
3.Relatively low boiling point
4.Large surface area
(A)1 and 5 (B)2 and 4 (C)1 and 2 (D)1,3 and 4 (E)all
6.The solubility of gases in liquids
(A)increases as temporature increase and increases as pressure increases
(B)decreases as temporature increase and increases as pressure increases
(C)decreases as temporature increase and decreases as pressure increases
(D)iecreases as temporature increase and decreases as pressure increases
(E)is independent of temporature and increase as pressure increase
7.Which of the followinf cannot act as a Bronsted base
(A)HCO3 (B)(CO3)2- (C)NH3 (D)NH2 (E)(NH4)+
8.Which compound has a value of Ka that is close to 10^-5
(A)NaCl (B)HNO3 (C)CH3CH2COOH (D)KOH (E)NH3
9.All of the following species are involved in blood buffer system except_
__.(A)HCO3 (B)(HPO4)2- (C)(CO3)2- (D) (HSO4)2- (E)H3PO4
208
10.Which product is formed by α emission from Po
84
(A) (B) (C) (D) (E)
208 212 204 208 209
At Rn Pb Bi Po
85 86 82 83 84
11.The half-life of nickle-65 is 2.5 days. How much of 100g sample has
decayed after 7.5 days?
(A)1.25g (B)75.0g (C)87.5g (D)93.75g (E)100g
12.Which reaction is an example of chain reaction?
(A)
235 4 231 (B) 75 0 75 (C) 123 123
U → He + Th Se→ e + Br I→ I +energy
92 2 90 34 -1 35 53 53
(D)
235 1 142 91 1
U+ n → Ba + Kr + 3 n
92 0 56 36 0
13.Which family of organic compound does not contain any multiple bonds?
(A)alkyl halids (B)alkenes (C)alkynes (D)aldehyde (E)ketons
。 。 。 。
14.There are w 1 carbon atom, x 2 carbon atom, y 3 carbon atom and 4 carbon
atom of compound shown. w + x - y - z=___
╲╱
／╲╱╲
｜ ｜
╲／ (A)4 (B)5 (C)6 (D)7 (E)8
C.簡答題(每大題六分，選5大題作答，共30分)
1.Explain why:
(a)CH3OCH3 and C2H5OH have the same fomula (C2H6O),but the boiling
。 。
point of the former is -25 C while the latter is 78 C.
(b)CH3CH2CH2CH2OH has greater solubility in water than CH3CH2CH2CH2CH2OH.
2.Which of the following solutions has the higher osmolarity?Explain your
answer.
(a)0.25M KBr or 0.2M Na2SO4
(b)0.30M NaOH or 3.0% (w/v)NaOH
3.(a)What is the pH of a solution that contains 0.100M HF and 0.100M NaF?
(b)What is the pH of 1.00 L of the above solution after 0.02 mol of NaOH
is added?
The Ka of HF is 3.5*10^-4.log(2.3*10^-4)=-3.64;log(3.5*10^-4)=-3.46;
log(5.3*10^-4)=-3.28
4.Complete and balance the following nuclear equation :
240 242
(a) Cm →□ + Pu
96 94
250 11 1
(b) Cf + B →□Lr + 4 n
98 5 0
10 1 4
(c) B+ n → □ + He
5 0 2
5.Locate and identify the functional groups in the following molecule ;
O
∥
C—OH
╱╲／
｜ ｜
╲╱＼O—C—CH3
∥
O
6.Draw two distinct sptial alignments between two benzene rings that have
favorable attractive forces.
7.Define the following terms:
(a)Henry's Law
(b)Charles's Law
D.簡答題(每大題十分，選1大題作答，共10分)
1.Give the IUPAC name for each of the following alkanes.
(a)
CH3
∣
CH3CH2CH2CH2CHCHCH2CH3
｜
CH2CH3
(b)
CH3 CH3
∣ ∣
CH3CCH2CCH3
∣ ∣
CH3 CH3
(c)
H3C
╲╱￣╲╴CH2CH2CH2CH3
╱╲╴╱
H3C
2.When we compare the acidity of two molucules, there are five
different parameters we should consider. They are (1)electronegativity
effect, (2)size effect, (3)orbital effect, (4)resonance effect, and
(5)inductive effect. Provide one example (showing the ralative acidity
of two molecules)to illustrate each effect.
EBD. GOOD LUCK!
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