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8/14/2019 EC Part II
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Lewis Dot 3D Angles Shape Hybridized orbitals
Bondpolarity(more
polar +arrow in
thatdirectio
n)
OverallPolarit
y
Strengthof
intermolecularforces
O2gas
180 linear sp none none
CO2gas
180 linear sp O-C: Ois morepolar
none
CH4gas
109 tetrahedral Sp3 C-H: C ismorepolar
None
NH3gas
From109 to107.3
Trigonalpyramidal
Sp3 N-H: Nis morepolar
Polarity
towards thelonepair
C2H5OHliquid
Forcarbons it is109,for
oxygen it is
95
Around thecarbons it istetrahedralexcept for
the lastcarbon
where it istrigonalplanar,
For bothcarbon
andoxygen it
is sp2
C-H: C ismorepolar
C-O: Ois morepolar
Polarity
towards the O
8/14/2019 EC Part II
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around theoxygen it is
bent
CH3OCH3
gas
Forcarbons it is109,
foroxygen it is
95
Around thecarbons it istetrahedral,around the
oxygen it isbent
For bothcarbon
andoxygen it
is sp2
C-H: C ismorepolar
C-O: O
is morepolar
None
CH3COOH
gas
For leftside
carbonit is109,for
centercarbon
it is120,for
oxygen it is109
For thecarbon on
the left is ittetrahedral,the carbon
in the
middle istrigonal
planar, thelower
oxygen isbent
For thecarbon onthe left itis sp3, for
thecarbon in
themiddle itis sp2, for
theoxygen it
is sp2
C-H: C ismorepolar
C-O: Ois morepolar
O-H: Ois morepolar
Polarity
towards theleft
C8H18liquid
For allcarbon
s it is109
For allcarbons, it is
tetrahedral
For allcarbons is
it sp3
C-H: C ismore
polar
none
DNA ???????? See below
8/14/2019 EC Part II
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DNA is a huge WTF