Chemistry
大學
已解決
線結合構造ってどこに結びつけてもいいんですか?
H2Sは1枚目の書き方ではだめなんですか?
問16
11-6
(a) CHCl 3
H
-
(b) H₂S
1
ce
H-S-H
Element
Likely F
9000
(b)
(c)
(d)
(e)
15/1,125
MERN
Al
3A
AlH3
4A
CH2Cl2
Si
4A
5A
SiF4
CH3NH2
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Structure and Bonding
7
1.6 Start by drawing the electron-dot structure of the molecule.
(1) Determine the number of valence, or outer-shell electrons for each atom in the
molecule. For chloroform, we know that carbon has four valence electrons, hydrogen
has one valence electron, and each chlorine has seven valence electrons.
.C.
4x1 = 4
H.
1 x 1 = 1
:CI
7 x 3 = 21
26
total valence electrons
(2) Next, use two electrons for each single bond.
H
CI:C: CI
(3) Finally, use the remaining electrons to achieve a noble gas configuration for all
atoms. For a line-bond structure, replace the electron dots between two atoms with a
line.
Molecule
CHCI³
(a)
H₂S
(b)
8 valence electrons
Electron-dot structure
:C:
Line-bond structure
:C:
H
H
H
H H
H:C:N:H
H
H H
H-C-N-H
H
CH3NH2
(c)
H
14 valence electrons
CH3Li
(d)
8 valence electrons
H
H:C:Li
H
H
H-C-Li
H
1.7 Each of the two carbons has 4 valence electrons. Two electrons are used to form the
carbon-carbon bond and the 6 electrons that remain can form bonds with a maximum of f
エタン
問題1.5 以下の物質の最も適当な分子式は何か.
(a) CC1?
(b) AIH?
(c) CH Cl2
問題 1.6 非共有電子対をすべて示して、次の物質の線結合構造を書け。合とよばれい
(d) SiF, (e) CH₂NH, TE
(a) CHCl3, クロロホルム
(b) H2S, 硫化水素
の本
(c) CH3NH2, メチルアミン
(d) CH3Li, メチルリチウム
問題 1.7 なぜ C2H7 の分子式をもつ有機分子がないのか
sv
解答
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