作者smoth (MASTER!! )
看板Chemistry
標題[問題] 問普化的題目
時間Sat Dec 24 19:39:35 2005
我想問幾題清大原科的普化題目
1.考慮這個反應:3O2(g)<-->2O3(g). 在175度C和壓力128torr.
O2和O3的混合平衡密度是0.168g/L.計算175度C時這個反應的Kp?
2.The solubility of benzoic acid(C6H5COOH) is 0.34g/100ml in water at 25度C
and 10g/100ml in benzene(C6H6) at 25度C. For a 1.0 molar solution of
benzoic acid in benzene , would the measured freezing-point depression
be equal to , greater than , or less than 5.12度C ?
3.How many possible sequences can be made for a polypeptide(多太)
with six different amino acids?
(A)720 (B)64 (C)36 (D)6 (E)none of these
4.Which one of the five oxides of chlorine is paramagnetic(順磁的)?
(A)Cl2O (B)ClO2 (C)Cl2O4 (D)Cl2O6 (E)Cl2O7
5.In the best Lewis structure for ICl3 the formal charge on I is
(A)0 (B)+1 (C)-1 (D)+2 (E)-2
6.In which of the following compounds does every atom have eight electrons
in its valence shell?
(A)IF5 (B)C2H4 (C)SF4 (D)NO2 (E)KH
上大學後 就沒碰過化學了
感謝大大幫我解答
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1996 John Smoltz 賽揚國度
W L ERA G GS CG SHO IP H R ER HR HBP BB SO IBB
24 8 2.94 35 35 6 2 253.2 199 93 83 19 2 55 276 3
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